DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
66 TSOP-II and 60 ball FBGA with Pb-Free
(RoHS compliant)
INFORMATION IN THIS DOCUMENT IS PROVIDED IN RELATION TO SAMSUNG PRODUCTS,
AND IS SUBJECT TO CHANGE WITHOUT NOTICE.
NOTHING IN THIS DOCUMENT SHALL BE CONSTRUED AS GRANTING ANY LICENSE,
EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE,
TO ANY INTELLECTUAL PROPERTY RIGHTS IN SAMSUNG PRODUCTS OR TECHNOLOGY. ALL
INFORMATION IN THIS DOCUMENT IS PROVIDED
ON AS "AS IS" BASIS WITHOUT GUARANTEE OR WARRANTY OF ANY KIND.
1. For updates or additional information about Samsung products, contact your nearest Samsung office.
2. Samsung products are not intended for use in life support, critical care, medical, safety equipment, or similar
applications where Product failure could result in loss of life or personal or physical harm, or any military or
defense application, or any governmental procurement to which special terms or provisions may apply.
* Samsung Electronics rese rves the right to change products or specification without notice.
DDR SDRAM Registered Module
184pin Registered Module based on 512Mb C-die
with 72-bit ECC
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
Table of Contents
1.0 Ordering Information...................................................................................................................4
2.0 Operating Frequencies................................................................................................................4
3.0 Feature.......................................................................................................................................... 4
4.0 Pin Configuration (Front side/back side) ................................................................................. 5
5.0 Pin Description ............................................................................................................................5
6.0 Functional Block Diagram ..........................................................................................................6
6.1 512MB, 64M x 72 ECC Module (M312L6523CUS) .............................................................................. 6
6.2 1GB, 128M x 72 ECC Module (M312L2923CUS) ............................................................................... 7
6.3 1GB, 128M x 72 ECC Module (M312L2920CUS) ............................................................................... 8
6.4 2GB, 256M x 72 ECC Module (M312L5628CU0)................................................................................9
6.5 512MB, 64M x 72 ECC Module (M312L6523CZ0)............................................................................................10
6.6 1GB, 128M x 72 ECC Module (M312L29 23CZ0) ..............................................................................11
6.7 1GB, 128M x 72 ECC Module (M312L2920CZ0)..............................................................................................12
6.8 2GB, 256M x 72 ECC Module (M312L5720CZ0)..............................................................................................13
7.0 Absolute Maximum Ratings......................................................................................................14
8.0 Power & DC Operating Conditions (SSTL_2 In/Out) .............................................................. 14
9.0 DDR SDRAM IDD spec table.....................................................................................................15
9.1 M312L6523CUS [ (64M x 8) * 9 , 512MB Module ] ........................................................................... 15
9.2 M312L2923CUS [ (64M x 8) * 18 , 1GB Module ]..............................................................................15
9.3 M312L2920CUS [ (128M x 4) * 18 , 1GB Module ]............................................................................................ 16
9.4 M312L5628CU0 [ (st .256M x 4) * 18 , 2GB Module ] ........................................................................16
9.5 M312L6523CZ0 [ (64M x 8) * 9 , 512MB Module ]............................................................................................17
9.6 M312L2923BG0 [ (64M x 8) * 18 , 1GB Module ] ............................................................................. 17
9.7 M312L2920BG0 [ (128M x 4) * 18 , 1GB Module ]............................................................................. 18
9.8 M312L5720BG0 [ (128M x 4) * 36, 2GB Module ] .............................................................................18
10.0 AC Operating Conditions........................................................................................................ 19
11.0 Input/Output Capacitance.......................................................................................................19
12.0 AC Timming Parameters & Specifications............................................................................20
13.0 System Characteristics for DDR SDRAM..............................................................................21
14.0 Component Notes....................................................................................................................22
15.0 System Notes...........................................................................................................................23
16.0 Command Truth Table.............................................................................................................24
17.0 Physical Dimensions...............................................................................................................25
17.1 64M x 72 (M312L6523CUS)........................................................................................................ 25
17.2 128Mx72 (M312L2 923CUS), 128Mx72 (M312L2920 CUS) ................................................................ 26
17.3 st.256Mx72 (M312L5628CU0).....................................................................................................27
17.4 64Mx72 (M312L6523CZ0) ..........................................................................................................28
17.5 128Mx72 (M312L2923CZ0), (M312L29 20CZ0)............................................................................... 29
17.6 256Mx72 (M312L5720CZ0) ........................................................................................................ 30
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
Revision History
Revision Month Year History
0.0 September 2004 - First release
0.1 October 2004 - Changed IDD current.
1.0 February 2005 - Revision 1.0 spec. release.
1.1 April 2005 - Added notice.
1.2 June 2005 - changed master format
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
CC(DDR400@CL=3) B3(DDR333@CL=2.5) A2(DDR266@CL=2) B0(DDR266@CL=2.5)
Speed @CL2 - 133MHz 133MHz 100MHz
Speed @CL2.5 166MHz 166MHz 133MHz 133MHz
Speed @CL3 200MHz - - -
CL-tRCD-tRP 3-3-3 2.5-3-3 2-3-3 2.5-3-3
184Pin Registered DIMM based on 512Mb C-die (x4, x8)
• VDD : 2.5V ± 0.2V, VDDQ : 2.5V ± 0.2V for DDR266, 333
• VDD : 2.6V ± 0.1V, VDDQ : 2.6V ± 0.1V for DDR400
• Double-data-rate architecture; two data transfers per clock cycle
• Bidirectional data strobe [DQ] (x4,x8) & [L(U)DQS] (x16)
• Differential clock inputs(CK and CK)
• DLL aligns DQ and DQS transition with CK transition
• Programmable Read latency : DDR266(2, 2.5 Clock), DDR333(2.5 Clock), DDR400(3 Clock)
• Programmable Burst length (2, 4, 8)
• Programmable Burst type (sequential & interleave)
• Edge aligned data output, center aligned data input
• Auto & Self refresh, 7.8us refresh interval(8K/64ms refresh)
• Serial presence detect with EEPROM
• SSTL_2 Interface
• 66pin TSOP II and 60 ball FBGA Pb-Free package
• RoHS compliant
1.0 Ordering Information
2.0 Operating Frequencies
Part Number Density Organization Component Composition Height
M312L6523CUS-C A2/B0 512MB 64M x 72 64Mx8( K4H510838C) * 9EA 1,200 mil
M312L2923CUS-C A2/B0 1GB 128M x 72 64Mx8( K4H510838C) * 18EA 1,200mil
M312L2920CUS-CA2/B0 1GB 128M x 72 128Mx4( K4H510438C) * 18EA 1,200mil
M312L5628CU0-CA2/B0 2GB 256M x 72 st.256Mx4( K4H1G0638C) * 18EA 1,200mil
M312L6523CZ0-CCC/B3 512MB 64Mx72 64Mx8( K4H510838C) * 9EA 1,125mil
M312L2923CZ0-CCC/B3 1GB 128M x 72 64Mx8( K4H510838C) * 18EA 1,125mil
M312L2920CZ0-CCC/B3 1GB 128M x 72 128Mx4( K4H510438C) * 18EA 1,125mil
M312L5720CZ0-CCC/B3 2GB 256M x 72 128Mx4( K4H510438C) * 36EA 1,200mil
3.0 Feature
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
Note :
1. * : These pins are not used in this module.
2. Pins 111, 158 are NC for 1row module & used for 2row module.
3. Pins 97, 107, 119, 129, 140, 149, 159, 169, 177 : DM (x8 base module) or DQS (x4 base module).
Pin Front Pin Front Pin Front Pin Back Pin Back Pin Back
1 VREF 32 A5 62 VDDQ 93 VSS 124 VSS 154 RAS
2 DQ0 33 DQ24 63 WE 94 DQ4 125 A6 155 DQ45
3 VSS 34 VSS 64 DQ41 95 DQ5 126 DQ28 156 VDDQ
4 DQ1 35 DQ25 65 CAS 96 VDDQ 127 DQ29 157 CS0
5 DQS0 36 DQS3 66 VSS 97 DM0/DQS9 128 VDDQ 158 CS1
6 DQ2 37 A4 67 DQS5 98 DQ6 129 DM3/DQS12 159 DM5/DQS14
7 VDD 38 VDD 68 DQ42 99 DQ7 130 A3 160 VSS
8 DQ3 39 DQ26 69 DQ43 100 VSS 131 DQ30 161 DQ46
9 NC 40 DQ27 70 VDD 101 NC 132 VSS 162 DQ47
10 RESET 41 A2 71 *CS2 102 NC 133 DQ31 163 *CS3
11 VSS 42 VSS 72 DQ48 103 NC 134 CB4 164 VDDQ
12 DQ8 43 A1 73 DQ49 104 VDDQ 135 CB5 165 DQ52
13 DQ9 44 CB0 74 VSS 105 DQ12 136 VDDQ 166 DQ53
14 DQS1 45 CB1 75 *CK2 106 DQ13 137 CK0 167 *A13
15 VDDQ 46 VDD 76 *CK2 107 DM1/DQS10 138 CK0 168 VDD
16 *CK1 47 DQS8 77 VDDQ 108 VDD 139 VSS 169 DM6/DQS15
17 *CK1 48 A0 78 DQS6 109 DQ14 140 DM8/DQS17 170 DQ54
18 VSS 49 CB2 79 DQ50 110 DQ15 141 A10 171 DQ55
19 DQ10 50 VSS 80 DQ51 111 CKE1 142 CB6 172 VDDQ
20 DQ11 51 CB3 81 VSS 112 VDDQ 143 VDDQ 173 NC
21 CKE0 52 BA1 82 VDDID 113 *BA2 144 CB7 174 DQ60
22 VDDQ KEY 83 DQ56 114 DQ20 KEY 175 DQ61
23 DQ16 53 DQ32 84 DQ57 115 A12 145 VSS 176 VSS
24 DQ17 54 VDDQ 85 VDD 116 VSS 146 DQ36 177 DM7/DQS16
25 DQS2 55 DQ33 86 DQS7 117 DQ21 147 DQ37 178 DQ62
26 VSS 56 DQS4 87 DQ58 118 A11 148 VDD 179 DQ63
27 A9 57 DQ34 88 DQ59 119 DM2/DQS11 149 DM4/DQS13 180 VDDQ
28 DQ18 58 VSS 89 VSS 120 VDD 150 DQ38 181 SA0
29 A7 59 BA0 90 NC 121 DQ22 151 DQ39 182 SA1
30 VDDQ 60 DQ35 91 SDA 122 A8 152 VSS 183 SA2
31 DQ19 61 DQ40 92 SCL 123 DQ23 153 DQ44 184 VDDSPD
Note : VDDID defines relationship of VDD and VD DQ, and the default status of it is open (VDD=VDDQ)
Pin Name Function Pin Name Function
A0 ~ A12 Address input (Multiplexed) DM0 ~ DM8 Data - in mask
BA0 ~ BA1A Bank Select Address VDD Power supply
(2.5V for DDR266/333, 2.6V for DDR400)
DQ0 ~ DQ63 Data input/output VDDQ Power Supply for DQS
(2.5V for DDR266/333, 2.6V for DDR400)
DQS0 ~ DQS17 Data Strobe input/output VSS Ground
CK0,CK0 ~ CK2, CK2 Clock input VREF Power supply for reference
CKE0, CKE1(for double banks) Clock enable input VDDSPD Serial EEPROM Power/Supply ( 2.3V to 3.6V )
CS0, CS1(for double banks) Chip select input SDA Serial data I/O
RAS Row address strobe SCL Serial clock
CAS Column address strobe SA0 ~ 2 Address in EEPROM
WE Write enable VDDID VDD, VDDQ level detection
CB0 ~ CB7 Check bit(Data-in/data-out) NC No conne ction
5.0 Pin Description
4.0 Pin Configuration (Front side/back side)
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
(Populated as 1 bank of x8 DDR SDRAM Module)
VSS D0 - D8
VDD/VDDQ D0 - D8
D0 - D8
VREF
VDDSPD SPD
D0 - D8
A0
Serial PD
A1 A2
SA0 SA1 SA2
SCL SDA
WP
RCS0
DQS0
DM0
DM/ CS DQS
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
D0
DQS1
DM1
DM/ CS DQS
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
D1
DQS2
DM2
DM/ CS DQS
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
D2
DQS3
DM3
DM/ CS DQS
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
D3
DQS4
DM4
DM/ CS DQS
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
D4
DQS5
DM5
DM/ CS DQS
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
D5
DQS6
DM6
DM/ CS DQS
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
D6
DQS7
DM7
DM/ CS DQS
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
D7
I/O 7
I/O 5
I/O 2
I/O 0
I/O 6
I/O 4
I/O 3
I/O 1
I/O 0
I/O 2
I/O 5
I/O 7
I/O 1
I/O 3
I/O 4
I/O 6
I/O 6
I/O 5
I/O 3
I/O 1
I/O 7
I/O 4
I/O 2
I/O 0
I/O 0
I/O 2
I/O 5
I/O 6
I/O 1
I/O 3
I/O 4
I/O 7
I/O 0
I/O 2
I/O 5
I/O 7
I/O 1
I/O 3
I/O 4
I/O 6
I/O 7
I/O 4
I/O 2
I/O 0
I/O 6
I/O 5
I/O 3
I/O 1
I/O 0
I/O 2
I/O 5
I/O 7
I/O 1
I/O 3
I/O 4
I/O 6
I/O 6
I/O 4
I/O 2
I/O 0
I/O 7
I/O 5
I/O 3
I/O 1
DQS8
DM8
DM/ CS DQS
CB0
CB1
CB2
CB3
CB4
CB5
CB6
CB7
D8
I/O 5
I/O 4
I/O 2
I/O 0
I/O 7
I/O 6
I/O 3
I/O 1
Notes:
1. DQ-to-I/O wiring is shown as recom-
mended but may be changed.
2. DQ/DQS/DM/CKE/CS relationsh ips
must be maintained as shown.
3. DQ, DQS, DM/DQS resistors: 22 Ohms.
PLL*
CK0,CK0
PCK
RAS
CAS
CKE0
BA0-BA1
A0-A12
R
E
G
I
S
T
E
R
CS0
PCK RESET
RCS0
RBA0 - RBA1
RA0 - RA12
RRAS
RCAS
RCKE0
RWE
BA0 -BA1 : SDRAMs DQ0 - D8
A0 -A12 : SDRAMs D0 - D8
RAS : SDRAMs D0 - D8
CAS : SDRAMs D0 - D8
CKE : SDRAMs D0 - D8
WE: SDRAMs D0 - D8
WE
* Wire per Clock Loading table/wiring Diagrams
6.1 512MB, 64M x 72 ECC Module (M312L6523CUS)
6.0 Functional Block Diagram
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
RCS0
DQS0
DM0
DM/ CS DQS
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
D0
DQS1
DM1
DM/ CS DQS
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
D1
DQS2
DM2
DM/ CS DQS
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
D2
DQS3
DM3
DM/ CS DQS
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
D3
DQS4
DM4
DM/ CS DQS
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
D4
DQS5
DM5
DM/ CS DQS
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
D5
DQS6
DM6
DM/ CS DQS
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
D6
DQS7
DM7
DM/ CS DQS
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
D7
I/O 7
I/O 5
I/O 2
I/O 0
I/O 6
I/O 4
I/O 3
I/O 1
I/O 7
I/O 5
I/O 2
I/O 0
I/O 6
I/O 4
I/O 3
I/O 1
I/O 6
I/O 5
I/O 3
I/O 1
I/O 7
I/O 4
I/O 2
I/O 0
I/O 7
I/O 5
I/O 2
I/O 1
I/O 6
I/O 4
I/O 3
I/O 0
I/O 7
I/O 5
I/O 2
I/O 0
I/O 6
I/O 4
I/O 3
I/O 1
I/O 7
I/O 4
I/O 2
I/O 0
I/O 6
I/O 5
I/O 3
I/O 1
I/O 7
I/O 5
I/O 2
I/O 0
I/O 6
I/O 4
I/O 3
I/O 1
I/O 6
I/O 4
I/O 2
I/O 0
I/O 7
I/O 5
I/O 3
I/O 1
DM/ CS DQS
D9
DM/ CS DQS
D10
DM/ CS DQS
D11
DM/ CS DQS
D12
I/O 0
I/O 2
I/O 5
I/O 7
I/O 1
I/O 3
I/O 4
I/O 6
DM/ CS DQS
D13
DM/ CS DQS
D14
DM/ CS DQS
D15
DM/ CS DQS
D16
RCS1
I/O 0
I/O 2
I/O 5
I/O 7
I/O 1
I/O 3
I/O 4
I/O 6
I/O 1
I/O 2
I/O 4
I/O 6
I/O 0
I/O 3
I/O 5
I/O 7
I/O 0
I/O 2
I/O 5
I/O 6
I/O 1
I/O 3
I/O 4
I/O 7
I/O 0
I/O 2
I/O 5
I/O 7
I/O 1
I/O 3
I/O 4
I/O 6
I/O 0
I/O 3
I/O 5
I/O 7
I/O 1
I/O 2
I/O 4
I/O 6
I/O 0
I/O 2
I/O 5
I/O 7
I/O 1
I/O 3
I/O 4
I/O 6
I/O 1
I/O 3
I/O 5
I/O 7
I/O 0
I/O 2
I/O 4
I/O 6
VSS D0 - D17
VDD/VDDQ D0 - D17
D0 - D17
VREF
VDDSPD SPD
D0 - D17
A0
Serial PD
A1 A2
SA0 SA1 SA2
SCL SDA
WP
DQS8
DM8
DM/ CS DQS
D8
I/O 5
I/O 4
I/O 2
I/O 0
I/O 7
I/O 6
I/O 3
I/O 1
DM/ CS DQS
D17
I/O 2
I/O 3
I/O 5
I/O 7
I/O 0
I/O 1
I/O 4
I/O 6
CB0
CB1
CB2
CB3
CB4
CB5
CB6
CB7
PCK
RAS
CAS
CKE0
CKE1
CS1
BA0-BA1
A0-A12
CS0
WE
PCK RESET
RCS1
RCS0
RBA0 - RBA1
RA0 - RA12
RRAS
RCAS
RCKE0
RWE
RCKE1
BA0 -BA1 : SDRAMs DQ0 - D17
A0 -A12 : SDRAMs D0 - D17
RAS : SDRAMs D0 - D17
CAS : SDRAMs DQ0 - D17
CKE : SDRAMs D0 - D8
CKE : SDRAMs D9 - D17
WE: SDRAMs D0 - D17
R
E
G
I
S
T
E
R
PLL*
CK0,CK0
* Wire per Clock Loading table/wiring Diagrams
Notes:
1. DQ-to-I/O wiring is shown as recom-
mended but may be changed.
2. DQ/DQS/DM/CKE/CS relationships
must be maintained as shown.
3. DQ, DQS, DM/DQS resistors: 22 Ohms.
(Populated as 2 bank of x8 DDR SDRAM Module)
6.2 1GB, 128M x 72 ECC Module (M312L2923CUS)
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
DQ4
DQ5
DQ6
DQ7
DQ0
DQ1
DQ2
DQ3
DQS0
DQ12
DQ13
DQ14
DQ8
DQ9
DQ10
DQ11
DQS9
DQ20
DQ21
DQ22
DQ23
DQ16
DQ17
DQ18
DQ19
DQS11
DQ28
DQ29
DQ30
DQ31
DQ24
DQ25
DQ26
DQ27
DQS12
DQ36
DQ37
DQ38
DQ39
DQ32
DQ33
DQ34
DQ35
DQS13
DQ44
DQ45
DQ46
DQ47
DQ40
DQ41
DQ42
DQ43
DQS14
DQ52
DQ53
DQ54
DQ55
DQ48
DQ49
DQ50
DQ51
DQ60
DQ61
DQ62
DQ63
DQ56
DQ57
DQ58
DQ59
DQS16
RCS0
DQS4
DQS1
DQS5
DQS2
DQS3
DQS15
DQS6
DQS7
DQ15
CB4
CB5
CB6
CB7
CB0
CB1
CB2
CB3
DQS8 DQS17
Notes:
1. DQ-to-I/O wiring is shown as recom-
mended but may be changed.
2. DQ/DQS/DM/CKE/S relationships must
be maintained as shown.
3. DQ, DQS, DM resistors: 22 Ohms.
RAS
CAS
CKE0
BA0-BA1
A0-A12
S0 RS0
RBA0 - RBA1
RA0 - RA12
RRAS
RCAS
RCKE0
RWE
BA0 -BA1 : SDRAMs DQ0 - D17
A0 -A12 : SDRAMs D0 - D17
RAS : SDRAMs D0 - D17
CAS : SDRAMs DQ0 - D17
CKE : SDRAMs D0 - D17
WE: SDRAMs D0 - D17
R
E
G
I
S
T
E
R
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D8
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D0
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D1
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D2
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D3
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D4
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D5
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D6
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D7
CS DM
VSS
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D17
CS DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D9
CS DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D10
CS DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D11
CS DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D12
CS DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D13
CS DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D14
CS DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D15
CS DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D16
CS DM
DQS10
RESET
PCK
PCK
WE
PLL*
CK0,CK0
* Wire per Clock Loading table/wiring Diagrams
A0
Serial PD
A1 A2
SA0 SA1 SA2
SCL SDA
WP
VSS
D0 - D17
D0 - D17
VDD/VDDQ D0 - D17
D0 - D17
VREF
Strap: see Note 4
VDDSPD SPD
(DM0)
(DM1)
(DM2)
(DM3)
(DM4)
(DM5)
(DM6)
(DM7)
(DM8)
(Populated as 1 bank of x4 DDR SDRAM Module)
6.3 1GB, 128M x 72 ECC Module (M312L2920CUS)
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
DQ4
DQ5
DQ6
DQ7
DQ0
DQ1
DQ2
DQ3
DQS0
DQ12
DQ13
DQ14
DQ8
DQ9
DQ10
DQ11
DM0/DQS9
DQ20
DQ21
DQ22
DQ23
DQ16
DQ17
DQ18
DQ19
DM2/DQS11
DQ28
DQ29
DQ30
DQ31
DQ24
DQ25
DQ26
DQ27
DM3/DQS12
DQ36
DQ37
DQ38
DQ39
DQ32
DQ33
DQ34
DQ35
DM4/DQS13
DQ44
DQ45
DQ46
DQ47
DQ40
DQ41
DQ42
DQ43
DM5/DQS14
DQ52
DQ53
DQ54
DQ55
DQ48
DQ49
DQ50
DQ51
DQ60
DQ61
DQ62
DQ63
DQ56
DQ57
DQ58
DQ59
DM7/DQS16
RCS0
RCS1
DQS4
DQS1
DQS5
DQS2
DQS3
DM6/DQS15
DQS6
DQS7
DQ15
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D0
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D1
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D2
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D3
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D4
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D5
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D6
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D7
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D9
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D10
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D11
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D12
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D13
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D14
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D15
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D16
DM
DM1/DQS10
VSS
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D18
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D19
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D20
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D21
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D22
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D23
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D24
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D25
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D27
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D28
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D29
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D30
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D31
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D32
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D33
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D34
DM
Notes:
1. DQ-to-I/O wiring is shown as recommended
but may be changed.
2. DQ/DQS/DM/CKE/CS relationships must
be maintained as shown.
3. DQ, DQS, DM/DQS resistors: 22 Ohms.
RA0 - RA12 A0-An: SDRAMs D0 - D35
RAS: SDRAMs D0 - D35
RCAS CAS: SDRAMs D0 - D35
RCKE1 CKE: SDRAMs D18 - D35
PCK
WE: SDRAMs D0 - D35
RCKE0
RBA0 - RBA1 BA0-BAn: SDRAMs D0 - D35
RAS
CAS
CKE0
CKE1
RCS1
CS1
BA0-BA1
A0-A12
R
E
G
I
S
T
E
R
RRAS
RWE
CS0 RCS0
WE
PCK RESET
CKE: SDRAMs D0 - D17
PLL
CK0,CK0
A0
Serial PD
A1 A2
SA0 SA1 SA2
SCL SDA
WP
VSS
D0 - D35
D0 - D35
VDD/VDDQ D0 - D35
D0 - D35
VREF
VDDSPD SPD
CB4
CB5
CB6
CB7
CB0
CB1
CB2
CB3
DQS8 DM8/DQS17
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D8
DM DQS
I/O 3
I/O 2
I/O 1
I/O 0
D17
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D26
DM DQS
I/O 3
I/O 2
I/O 1
I/O 0
D35
DM
CS CS CS
CS CS CS CS
CS CS CS CS
CS CS CS CS
CS CS CS CS
CS CS CS CS
CS CS CS CS
CS CS CS CS
CS CS CS CS
(Populated as 2 bank of x4 DDR SDRAM Module)
6.4 2GB, 256M x 72 ECC Module (M312L5628CU0)
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
DQ4
DQ5
DQ6
DQ7
DQ0
DQ1
DQ2
DQ3
DM
I/O 0
I/O 2
I/O 4
I/O 7
D0
DM0
I/O 3
I/O 1
I/O 6
I/O 5
DQ12
DQ13
DQ14
DQ8
DQ9
DQ10
DQ11
DM
D1
DM1
DQ20
DQ21
DQ22
DQ23
DQ16
DQ17
DQ18
DQ19
DM
D2
DQ28
DQ29
DQ30
DQ31
DQ24
DQ25
DQ26
DQ27
DM
D3
DQ36
DQ37
DQ38
DQ39
DQ32
DQ33
DQ34
DQ35
DM
D4
DM4
DQ44
DQ45
DQ46
DQ47
DQ40
DQ41
DQ42
DQ43
DM
D5
DM5
DQ52
DQ53
DQ54
DQ55
DQ48
DQ49
DQ50
DQ51
DM
D6
DQ60
DQ61
DQ62
DQ63
DQ56
DQ57
DQ58
DQ59
DM
D7
DM7
RCS0
CS CS
CS CS
CS
CS
CS
CS
DQS0
DQS
DQS4
DQS1 DQS5
DQS
DQS
DQS
DM6
DQS6
DQS7
DQ15
CB4
CB5
CB6
CB7
CB0
CB1
CB2
CB3
DM
D8
CS DQS
DQS
DQS
DQS
DQS
PCK
RAS
CAS
CKE0
BA0-BA1
A0-A12
R
E
G
I
S
T
E
R
CS0
PCK RESET
RCS0
RBA0 - RBA1
RA0 - RA12
RRAS
RCAS
RCKE0
RWE
BA0 -BA1 : DDR SDRAMs D 0 - D8
A0 -A12 : DDR SDRAMs D0 - D8
RAS : DDR SDRAMs D0 - D8
CAS : DDR SDRAMs D0 - D8
CKE : DDR SDRAMs D0 - D8
WE: DDR SDRAMs D0 - D8
WE
PLL*
CK0,CK0
* Wire per Clock Loading table/wiring Diagrams A0
Serial PD
A1 A2
SA0 SA1 SA2
SCL SDA
WP
VSS DDR SDRAMs D0 - D8
VDD/VDDQ DDR SDRAMs D0 - D8
DDR SDRAMs D0 - D8
VREF
VDDSPD SPD
Notes:
1. DQ-to-I/O wiring is shown as recommended but may be changed.
2. DQ/DQS/DM/CKE/CS relationships must be maintained as shown.
3. DQ, DQS, DM/DQS resistors: 22 Ohms.
DM2
DQS2
DM3
DQS3
DM8
DQS8
I/O 7
I/O 5
I/O 3
I/O 0
I/O 4
I/O 6
I/O 1
I/O 2
I/O 0
I/O 2
I/O 4
I/O 7
I/O 3
I/O 1
I/O 6
I/O 5
I/O 7
I/O 5
I/O 3
I/O 0
I/O 4
I/O 6
I/O 1
I/O 2
I/O 7
I/O 5
I/O 3
I/O 0
I/O 4
I/O 6
I/O 1
I/O 2
I/O 7
I/O 5
I/O 3
I/O 0
I/O 4
I/O 6
I/O 1
I/O 2
I/O 7
I/O 5
I/O 3
I/O 0
I/O 4
I/O 6
I/O 1
I/O 2
I/O 0
I/O 2
I/O 4
I/O 7
I/O 3
I/O 1
I/O 6
I/O 5
I/O 7
I/O 5
I/O 3
I/O 0
I/O 4
I/O 6
I/O 1
I/O 2
(Populated as 1 bank of x8 DDR SDRAM Mod ule)
6.5 512MB, 64M x 72 ECC Module (M312L6523CZ0)
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
RCS0
DQS0
DM0
DM/ CS DQS
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
D0
DQS1
DM1
DM/ CS DQS
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
D1
DQS2
DM2
DM/ CS DQS
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
D2
DQS3
DM3
DM/ CS DQS
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
D3
DQS4
DM4
DM/ CS DQS
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
D4
DQS5
DM5
DM/ CS DQS
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
D5
DQS6
DM6
DM/ CS DQS
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
D6
DQS7
DM7
DM/ CS DQS
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
D7
I/O 1
I/O 0
I/O 7
I/O 6
I/O 2
I/O 3
I/O 4
I/O 5
DM/ CS DQS
D9
DM/ CS DQS
D10
DM/ CS DQS
D11
DM/ CS DQS
D12
I/O 6
I/O 7
I/O 0
I/O 1
I/O 5
I/O 4
I/O 3
I/O 2
DM/ CS DQS
D13
DM/ CS DQS
D14
DM/ CS DQS
D15
DM/ CS DQS
D16
RCS1
VSS D0 - D17
VDD/VDDQ D0 - D17
D0 - D17
VREF
VDDSPD SPD
D0 - D17
A0
Serial PD
A1 A2
SA0 SA1 SA2
SCL SDA
WP
DQS8
DM8
DM/ CS DQS
D8
DM/ CS DQS
D17
CB0
CB1
CB2
CB3
CB4
CB5
CB6
CB7
PCK
RAS
CAS
CKE0
CKE1
CS1
BA0-BA1
A0-A12
CS0
WE
PCK RESET
RCS1
RCS0
RBA0 - RBA1
RA0 - RA12
RRAS
RCAS
RCKE0
RWE
RCKE1
BA0 -BA1 : DDR SDRAM DQ0 - D17
A0 -A12 : DDR SDRAM D0 - D17
RAS : DDR SDRAM D0 - D17
CAS : DDR SDRAM DQ0 - D17
CKE : DDR SDRAM D0 - D8
CKE : DDR SDRAM D9 - D17
WE: DDR SDRAM D0 - D17
R
E
G
I
S
T
E
R
PLL*
CK0,CK0
* Wire per Clock Loading table/wiring Diagrams
Notes:
1. DQ-to-I/O wiring is shown as recom-
mended but may be changed.
2. DQ/DQS/DM/CKE/CS relationships
must be maintained as shown.
3. DQ, DQS, DM/DQS resistors: 22 Ohms.
I/O 6
I/O 7
I/O 0
I/O 1
I/O 5
I/O 4
I/O 3
I/O 2
I/O 1
I/O 0
I/O 7
I/O 6
I/O 2
I/O 3
I/O 4
I/O 5
I/O 1
I/O 0
I/O 7
I/O 6
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
I/O 0
I/O 1
I/O 5
I/O 4
I/O 3
I/O 2
I/O 1
I/O 0
I/O 7
I/O 6
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
I/O 0
I/O 1
I/O 5
I/O 4
I/O 3
I/O 2
I/O 6
I/O 7
I/O 0
I/O 1
I/O 5
I/O 4
I/O 3
I/O 2
I/O 1
I/O 0
I/O 7
I/O 6
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
I/O 0
I/O 1
I/O 5
I/O 4
I/O 3
I/O 2
I/O 1
I/O 0
I/O 7
I/O 6
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
I/O 0
I/O 1
I/O 5
I/O 4
I/O 3
I/O 2
I/O 1
I/O 0
I/O 7
I/O 6
I/O 2
I/O 3
I/O 4
I/O 5
I/O 1
I/O 0
I/O 7
I/O 6
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
I/O 0
I/O 1
I/O 5
I/O 4
I/O 3
I/O 2
I/O 1
I/O 0
I/O 7
I/O 6
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
I/O 0
I/O 1
I/O 5
I/O 4
I/O 3
I/O 2
(Populated as 2 bank of x8 DDR SDRAM Mod ule)
6.6 1GB, 128M x 72 ECC Module (M312L2923CZ0)
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
DQ4
DQ5
DQ6
DQ7
DQ0
DQ1
DQ2
DQ3
DQS0
DQ12
DQ13
DQ14
DQ8
DQ9
DQ10
DQ11
DQS9
DQ20
DQ21
DQ22
DQ23
DQ16
DQ17
DQ18
DQ19
DQS11
DQ28
DQ29
DQ30
DQ31
DQ24
DQ25
DQ26
DQ27
DQS12
DQ36
DQ37
DQ38
DQ39
DQ32
DQ33
DQ34
DQ35
DQS13
DQ44
DQ45
DQ46
DQ47
DQ40
DQ41
DQ42
DQ43
DQS14
DQ52
DQ53
DQ54
DQ55
DQ48
DQ49
DQ50
DQ51
DQ60
DQ61
DQ62
DQ63
DQ56
DQ57
DQ58
DQ59
DQS16
RCS0
DQS4
DQS1
DQS5
DQS2
DQS3
DQS15
DQS6
DQS7
DQ15
CB4
CB5
CB6
CB7
CB0
CB1
CB2
CB3
DQS8 DQS17
Notes:
1. DQ-to-I/O wiring is shown as recom-
mended but may be changed.
2. DQ/DQS/DM/CKE/S relationships must
be maintained as shown.
3. DQ, DQS, DM resistors: 22 Ohms.
RAS
CAS
CKE0
BA0-BA1
A0-A12
CS0 RCS0_2
RCS0_1
RBA0 - RBA1
RA0 - RA12
RRAS
RCAS
RCKE0A
RWE
RCKE0B
BA0 -BA1 : DDR SDRAM DQ0 - D17
A0 -A12 :DDR SDRAM D0 - D17
RAS : DDR SDRAM D0 - D17
CAS : DDR SDRAM DQ0 - D17
CKE : DDR SDRAM D0 - D8
CKE : DDR SDRAM D9 - D17
WE:DDR SDRAM D0 - D17
R
E
G
I
S
T
E
R
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D8
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D0
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D1
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D2
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D3
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D4
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D5
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D6
CS DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D7
CS DM
VSS
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D9
CS DM
DQS
D10
CS DM
DQS
D11
CS DM
DQS
D12
CS DM
DQS10
RESET
PCK
PCK
WE
PLL*
CK0,CK0
* Wire per Clock Loading table/wiring Diagrams
A0
Serial PD
A1 A2
SA0 SA1 SA2
SCL SDA
WP
VSS
D0 - D17
D0 - D17
VDD/VDDQ D0 - D17
D0 - D17
VREF
VDDSPD SPD
(DM0)
(DM1)
(DM2)
(DM3)
(DM4)
(DM5)
(DM6)
(DM7)
(DM8)
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
DQS
D13
CS DM
DQS
D14
CS DM
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
DQS
D15
CS DM
DQS
D16
CS DM
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
DQS
D17
CS DM
I/O 0
I/O 1
I/O 2
I/O 3
(Populated as 1 bank of x4 DDR SDRAM Mod ule)
6.7 1GB, 128M x 72 ECC Module (M312L2920CZ0)
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
DQ4
DQ5
DQ6
DQ7
DQ0
DQ1
DQ2
DQ3
DQS0
DQ12
DQ13
DQ14
DQ8
DQ9
DQ10
DQ11
DQS9
DQ20
DQ21
DQ22
DQ23
DQ16
DQ17
DQ18
DQ19
DQS11
DQ28
DQ29
DQ30
DQ31
DQ24
DQ25
DQ26
DQ27
DQS12
DQ36
DQ37
DQ38
DQ39
DQ32
DQ33
DQ34
DQ35
DQS13
DQ44
DQ45
DQ46
DQ47
DQ40
DQ41
DQ42
DQ43
DQS14
DQ52
DQ53
DQ54
DQ55
DQ48
DQ49
DQ50
DQ51
DQ60
DQ61
DQ62
DQ63
DQ56
DQ57
DQ58
DQ59
DQS16
RCS0
RCS1
DQS4
DQS1
DQS5
DQS2
DQS3
DQS15
DQS6
DQS7
DQ15
DQS
D0
CS DM
DQS
D1
DM
DQS
D2
DM
DQS
D3
DM
DQS
D4
DM
DQS
D5
DM
DQS
D6
DM
DQS
D7
DM
DQS10
VSS
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D18
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D19
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D20
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D21
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D22
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D23
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D24
DM
DQS
I/O 0
I/O 1
I/O 2
I/O 3
D25
DM
Notes:
1. DQ-to-I/O wiring is shown as recommended but may be changed.
2. DQ/DQS/DM/CKE/CS relationships must be maintained as shown.
3. DQ, DQS, DM/DQS resistors: 22 Ohms.
RA0 - RA12 A0-A12: DDR SDRAM D0 - D35
RAS: DDR SDRAM D0 - D35
RCAS CAS: DDR SDRAM D0 - D35
RCKE1 CKE: DDR SDRAM D18 - D35
PCK
WE: DDR SDRAM D0 - D35
RCKE0
RBA0 - RBA1 BA0-BA1: DDR SDRAM D0 - D35
RAS
CAS
CKE0
CKE1
RCS1
CS1
BA0-BA1
A0-A12
R
E
G
I
S
T
E
R
RRAS
RWE
CS0 RCS0
WE
PCK RESET
CKE: DDR SDRAM D0 - D17
A0
Serial PD
A1 A2
SA0 SA1 SA2
SCL SDA
WP
VSS
D0 - D35
D0 - D35
VDD/VDDQ D0 - D35
D0 - D35
VREF
VDDSPD SPD
PLL*
CK0,CK0
* Wire per Clock Loading table/wiring Diagrams
CB0
CB1
CB2
CB3
DQS8 DQS
D8
DM DQS
I/O 0
I/O 1
I/O 2
I/O 3
D26
DM CB4
CB5
CB6
CB7
DQS17
(DM0)
(DM1)
(DM2)
(DM3)
(DM4)
(DM5)
(DM6)
(DM7)
(DM8)
CS
CS CS
CS CS
CS CS
CS CS
CS CS
CS CS
CS CS
CS CS
DQS
D9
DM DQS
I/O 3
I/O 2
I/O 1
I/O 0
D27
DM
CS CS
DQS
D10
DM
DQS
D11
DM
DQS
D12
DM
DQS
D13
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D28
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D29
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D30
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D31
DM
CS CS
CS CS
CS CS
CS CS
DQS
D14
DM
DQS
D15
DM
DQS
D16
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D32
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D33
DM
DQS
I/O 3
I/O 2
I/O 1
I/O 0
D34
DM
DQS
D17
DM DQS
I/O 3
I/O 2
I/O 1
I/O 0
D35
DM
CS CS
CS CS
CS CS
CS CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 3
I/O 2
I/O 1
I/O 0
I/O 3
I/O 2
I/O 1
I/O 0
I/O 3
I/O 2
I/O 1
I/O 0
I/O 3
I/O 2
I/O 1
I/O 0
I/O 3
I/O 2
I/O 1
I/O 0
I/O 3
I/O 2
I/O 1
I/O 0
I/O 3
I/O 2
I/O 1
I/O 0
I/O 3
I/O 2
I/O 1
I/O 0
I/O 3
I/O 2
I/O 1
I/O 0
(Populated as 2 bank of x4 DDR SDRAM Module)
6.8 2GB, 256M x 72 ECC Module (M312L5720CZ0)
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
Note :
Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded.
Functional operation should be restricted to recommended operating condition.
Exposure to higher than recommended voltage for extended periods of time could affect device reliability.
Parameter Symbol Value Unit
Voltage on any pin relative to Vss VIN, VOUT -0.5 ~ 3.6 V
Voltage on VDD supply relative to Vss VDD,VDDQ -1.0 ~ 3.6 V
Storage temperature TSTG -55 ~ +150 °C
Power dissipation PD1.5 * # of component W
Short circuit current IOS 50 mA
Recommended operating conditions(Voltage referenced to VSS=0V, TA=0 to 70°C)
Note :
1. VREF is expected to be equal to 0.5*VDDQ of the transmitting device, and to track variations in the dc level of same. Peak-to peak noise on VREF may
not exceed +/-2% of the dc value.
2. VTT is not applied directly to the device. VTT is a system supply for signal termination resistors, is expected to be set equal to VREF, and must track
variations in the DC level of VREF.
3. VID is the magnitude of the difference between the input level on CK and the input level on CK.
4. The ratio of the pullup current to the pulldown current is specified for the same temperature and voltage, over the entire temperature and voltage range,
for device drain to source voltages from 0.25V to 1.0V. For a given output, it represents the maximum dif ference between pullup and pulldown drivers
due to process variation. The full variation in the ratio of the maximum to minimum pullup and pulldown current will not exceed 1.7 for device drain to
source voltages from 0.1 to 1.0.
Parameter Symbol Min Max Unit Note
Supply voltage(for device with a nominal VDD of 2.5V for DDR266/333) VDD 2.3 2.7 V
Supply voltage(for device with a nominal VDD of 2.6V for DDR400) VDD 2.5 2.7 V
I/O Supply voltage(for device with a nominal VDD of 2.5V for DDR266/333) VDDQ 2.3 2.7 V
I/O Supply voltage(for device with a nominal VDD of 2.6V for DDR400) VDDQ 2.5 2.7 V
I/O Reference voltage VREF 0.49*VDDQ 0.51*VDDQ V 1
I/O Termination voltage(system) VTT VREF-0.04 VREF+0.04 V2
Input logic high voltage VIH(DC) VREF+0.15 VDDQ+0.3 V
Input logic low voltage VIL(DC) -0.3 VREF-0.15 V
Input Voltage Level, CK and CK inputs VIN(DC) -0.3 VDDQ+0.3 V
Input Differential Voltage, CK and CK inputs VID(DC) 0.36 VDDQ+0.6 V 3
V-I Matching: Pullup to Pulldown Current Ratio VI(Ratio) 0.71 1.4 - 4
Input leakage current II-2 2 uA
Output leakage current IOZ -5 5 uA
Output High Current(Normal strengh driver) ;VOUT = VTT + 0.84V IOH -16.8 mA
Output High Current(Normal strengh driver) ;VOUT = V TT - 0.84V IOL 16.8 mA
Output High Current(Half strengh driver) ;VOUT = VTT + 0.45V IOH -9 mA
Output High Current(Half strengh driver) ;VOUT = VTT - 0.45V IOL 9mA
8.0 Power & DC Operating Conditions (SSTL_2 In/Out)
7.0 Absolute Maximum Ratings
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
(VDD=2.7V, T = 10°C)
* Module IDD was calculated on the basis of comp onent IDD and can be differently measured according to DQ loading cap.
Symbol A2(DDR266@CL=2) B0(DDR266@CL=2.5) Unit Notes
IDD0 1,360 1,360 mA
IDD1 1,630 1,630 mA
IDD2P 350 350 mA
IDD2F 770 770 mA
IDD2Q 530 530 mA
IDD3P 570 570 mA
IDD3N 910 910 mA
IDD4R 1,630 1,630 mA
IDD4W 1,670 1,670 mA
IDD5 2,260 2,260 mA
IDD6 Normal 350 350 mA
Low power 330 330 mA Optional
IDD7A 3,430 3,430 mA
(VDD=2.7V, T = 10°C)
* Module IDD was calculated on the basis of comp onent IDD and can be differently measured according to DQ loading cap.
Symbol A2(DDR266@CL=2) B0(DDR266@CL=2.5) Unit Notes
IDD0 2,010 2,010 mA
IDD1 2,280 2,280 mA
IDD2P 540 540 mA
IDD2F 1,290 1,290 mA
IDD2Q 900 900 mA
IDD3P 990 990 mA
IDD3N 1,560 1,560 mA
IDD4R 2,280 2,280 mA
IDD4W 2,330 2,330 mA
IDD5 2,910 2,910 mA
IDD6 Normal 540 540 mA
Low power 510 510 mA Optional
IDD7A 4,080 4,080 mA
9.1 M312L6523CUS [ (64M x 8) * 9 , 512MB Module ]
9.2 M312L2923CUS [ (64M x 8) * 18 , 1GB Module ]
9.0 DDR SDRAM IDD spec table
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
(VDD=2.7V, T = 10°C)
* Module IDD was calculated on the basis of component IDD and can be differently measured according to DQ loading cap.
Symbol A2(DDR266@CL=2) B0(DDR266@CL=2.5) Unit Notes
IDD0 2,340 2,340 mA
IDD1 2,880 2,880 mA
IDD2P 420 420 mA
IDD2F 1,170 1,170 mA
IDD2Q 780 780 mA
IDD3P 870 870 mA
IDD3N 1,440 1,440 mA
IDD4R 2,880 2,880 mA
IDD4W 2,970 2,970 mA
IDD5 4,140 4,140 mA
IDD6 Normal 420 420 mA
Low power 380 380 mA Optional
IDD7A 6,480 6,480 mA
(VDD=2.7V, T = 10°C)
* Module IDD was calculated on the basis of component IDD and can be differently measured according to DQ loading cap.
Symbol A2(DDR266@CL=2) B0(DDR266@CL=2.5) Unit Notes
IDD0 3,400 3,400 mA
IDD1 3,940 3,940 mA
IDD2P 760 760 mA
IDD2F 1,960 1,960 mA
IDD2Q 1,480 1,480 mA
IDD3P 1,660 1,660 mA
IDD3N 2,500 2,500 mA
IDD4R 3,940 3,940 mA
IDD4W 4,030 4,030 mA
IDD5 5,200 5,200 mA
IDD6 Normal 760 760 mA
Low power 685 685 mA Optional
IDD7A 7,540 7,540 mA
9.4 M312L5628CU0 [ (st.256M x 4) * 18 , 2GB Module ]
9.3 M312L2920CUS [ (128M x 4) * 18 , 1GB Module ]
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
(VDD=2.7V, T = 10°C)
* Module IDD was calculated on the basis of component IDD and can be differently measured according to DQ loading cap.
Symbol CC (DDR400@CL=3) B3 (DDR3 33@CL=2.5) Unit Notes
IDD0 1,830 1,700 mA
IDD1 2,100 1,970 mA
IDD2P 420 420 mA
IDD2F 1,020 1,020 mA
IDD2Q 600 600 mA
IDD3P 780 650 mA
IDD3N 1,290 1,160 mA
IDD4R 2,150 2,010 mA
IDD4W 2,330 2,100 mA
IDD5 2,730 2,600 mA
IDD6 Normal 420 420 mA
Low power 410 410 mA Optional
IDD7A 4,220 3,990 mA
(VDD=2.7V, T = 10°C)
* Module IDD was calculated on the basis of component IDD and can be differently measured according to DQ loading cap.
Symbol CC (DDR400@CL=3) B3 (DDR3 33@CL=2.5) Unit Notes
IDD0 2,500 2,230 mA
IDD1 2,770 2,500 mA
IDD2P 590 590 mA
IDD2F 1,420 1,420 mA
IDD2Q 950 950 mA
IDD3P 1,310 1,040 mA
IDD3N 1,960 1,690 mA
IDD4R 2,810 2,540 mA
IDD4W 2,990 2,630 mA
IDD5 3,400 3,130 mA
IDD6 Normal 590 590 mA
Low power 560 560 mA Optional
IDD7A 4,880 4,520 mA
9.6 M312L2923CZ0 [ (64M x 8) * 18 , 1GB Module ]
9.5 M312L6523CZ0 [ (64M x 8) * 9 , 512MB Module ]
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
(VDD=2.7V, T = 10°C)
* Module IDD was calculated on the basis of component IDD and can be differently measured according to DQ loading cap.
Symbol CC (DDR400@CL=3) B3 (DDR333@CL= 2.5) Unit Notes
IDD0 4,240 3,700 mA
IDD1 4,780 4,240 mA
IDD2P 810 810 mA
IDD2F 2,080 2,080 mA
IDD2Q 1,530 1,530 mA
IDD3P 2,250 1,710 mA
IDD3N 3,160 2,620 mA
IDD4R 4,870 4,330 mA
IDD4W 5,230 4,510 mA
IDD5 6,040 5,500 mA
IDD6 Normal 810 810 mA
Low power 740 740 mA Optional
IDD7A 9,010 8,290 mA
(VDD=2.7V, T = 10°C)
* Module IDD was calculated on the basis of component IDD and can be differently measured according to DQ loading cap.
Symbol CC (DDR400@CL=3) B3 (DDR333@CL=2.5) Unit Notes
IDD0 2,910 2,640 mA
IDD1 3,450 3,180 mA
IDD2P 470 470 mA
IDD2F 1,290 1,290 mA
IDD2Q 830 830 mA
IDD3P 1,190 920 mA
IDD3N 1,830 1,560 mA
IDD4R 3,540 3,270 mA
IDD4W 3,900 3,450 mA
IDD5 4,710 4,440 mA
IDD6 Normal 470 470 mA
Low power 430 430 mA Optional
IDD7A 7,680 7,230 mA
9.8 M312L5720CZ0 [ (128M x 4) * 36, 2GB Module ]
9.7 M312L2920CZ0 [ (128M x 4) * 18 , 1GB Module ]
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
Output Load Circuit (SSTL_2)
Output Z0=50
CLOAD=30pF
VREF
=0.5*VDDQ
RT=50
Vtt=0.5*VDDQ
(TA= 25°C, f=100MHz)
Parameter Symbol M312L6523CUS, M312L2920CUS M312L2923CUS, M312L5720CU0 Unit
Min Max Min Max
Input capacitance(A0 ~ A12, BA0 ~ BA1,RAS,CAS,WE ) CIN1 9 11 9 11 pF
Input capacitance(CKE0) CIN2 9 11 9 11 pF
Input capacitance( CS0) CIN3 9 11 9 11 pF
Input capacitance( CLK0, CLK0 ) CIN411121112pF
Input capacitance(DM0~DM8) CIN5 10 11 14 16 pF
Data & DQS input/output capacitance(DQ0~DQ63) Cout1 10 11 14 16 pF
Data input/output capacitance (CB0~CB7) Cout2 10 11 14 16 pF
Parameter Symbol M312L6523CZ0, M312L2920CZ0 M312L2923CZ0, M312L5720CZ0 Unit
Min Max Min Max
Input capacitance(A0 ~ A12, BA0 ~ BA1,RAS,CAS,WE ) CIN1 9 11 9 11 pF
Input capacitance(CKE0) CIN2 9 11 9 11 pF
Input capacitance( CS0) CIN3 9 11 9 11 pF
Input capacitance( CLK0, CLK0 ) CIN411121112pF
Input capacitance(DM0~DM8) CIN5 10 11 13 15 pF
Data & DQS input/output capacitance(DQ0~DQ63) Cout1 10 11 13 15 pF
Data input/output capacitance (CB0~CB7) Cout2 10 11 13 15 pF
Note :
1. VID is the magnitude of the difference between the input level on CK and the input on CK.
2. The value of VIX is expected to equal 0.5*VDDQ of the transmitting device and must track variations in the DC level of the same.
Parameter/Condition Symbol Min Max Unit Note
Input High (Logic 1) Voltage, DQ, DQS and DM signals VIH(AC) VREF + 0.31 V
Input Low (Logic 0) Voltage, DQ, DQS an d DM signals. VIL(AC) VREF - 0.31 V
Input Differential Voltage, CK and CK inputs VID(AC) 0.7 VDDQ+0.6 V 1
Input Crossing Point Voltage, CK and CK inputs VIX(AC) 0.5*VDDQ-0.2 0.5*VDDQ+0.2 V 2
11.0 Input/Output Capacitance
10.0 AC Operating Conditions
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
Parameter Symbol CC
(DDR400@CL=3.0) B3
(DDR333@CL=2.5) A2
(DDR266@CL=2.0) B0
(DDR266@CL=2.5) Unit Note
Min Max Min Max Min Max Min Max
Row cycle time tRC 55 60 65 65 ns
Refresh row cycle time tRFC 70 72 75 75 ns
Row active time tRAS 40 70K 42 70K 45 70K 45 70K ns
RAS to CAS delay tRCD 15 18 20 20 ns
Row precharge time tRP 15 18 20 20 ns
Row active to Row active delay tRRD 10 12 15 15 ns
Write recovery time tWR 15 15 15 15 ns
Last data in to Read command tWTR 2 1 1 1 tCK
Clock cycle time CL=2.0 tCK - - 7.5 12 7.5 12 10 12 ns
CL=2.5 6126127.5127.512ns
CL=3.0 510------
Clock high level width tCH 0.45 0.55 0.45 0.55 0.45 0.55 0.45 0.55 tCK
Clock low level width tCL 0.45 0.55 0.45 0.55 0.45 0.55 0.45 0.55 tCK
DQS-out access time from CK/CK tDQSCK -0.55 +0.55 -0.6 +0.6 -0.75 +0.75 -0.75 +0.75 ns
Output data access time from CK/CK tAC -0.65 +0.65 -0.7 +0.7 -0.75 +0.75 -0.75 +0.75 ns
Data strobe edge to ouput data edge tDQSQ - 0.4 - 0.45 - 0.5 - 0.5 ns 22
Read Preamble tRPRE 0.9 1.1 0.9 1.1 0.9 1.1 0.9 1.1 tCK
Read Postamble tRPST 0.4 0.6 0.4 0.6 0.4 0.6 0.4 0.6 tCK
CK to valid DQS-in tDQSS 0.72 1.28 0.75 1.25 0.75 1.25 0.75 1.25 tCK
DQS-in setup time tWPRES 0 0 0 0 ns 13
DQS-in hold time tWPRE 0.25 0.25 0.25 0.25 tCK
DQS falling edge to CK rising-setup time tDSS 0.2 0.2 0.2 0.2 tCK
DQS falling edge from CK rising-hold time tDSH 0.2 0.2 0.2 0.2 tCK
DQS-in high level width tDQSH 0.35 0.35 0.35 0.35 tCK
DQS-in low level width tDQSL 0.35 0.35 0.35 0.35 tCK
Address and Control Input setup time(fast) tIS 0.6 0.75 0.9 0.9 ns 15, 17~19
Address and Control Input hold time(fast) tIH 0.6 0.75 0.9 0.9 ns 15, 17~19
Address and Control Input setup time(slow) tIS 0.7 0.8 1.0 1.0 ns 16~19
Address and Control Input hold time(slow) tIH 0.7 0 .8 1.0 1.0 ns 16~19
Data-out high impedence time from CK/CK tHZ -0.65 +0.65 -0.7 +0.7 -0.75 +0.75 -0.75 +0.75 ns 11
Data-out low impedence time from CK/CK tLZ -0.65 +0.65 -0.7 +0.7 -0.75 +0.75 -0.75 +0.75 ns 11
Mode register set cycle time tMRD 10 12 15 15 ns
DQ & DM setup time to DQS tDS 0.4 0.45 0.5 0.5 ns j, k
DQ & DM hold time to DQS tDH 0.4 0.45 0.5 0.5 ns j, k
Control & Address input pulse width tIPW 2.2 2.2 2.2 2.2 ns 18
DQ & DM input pulse width tDIPW 1.75 1.75 1.75 1.75 ns 18
Exit self refresh to non-Read command tXSNR 75 75 75 75 ns
Exit self refresh to read command tXSRD 200 200 200 200 tCK
Refresh interval time tREFI 7.8 7.8 7.8 7.8 us 14
Output DQS valid window tQH tHP
-tQHS -tHP
-tQHS -tHP
-tQHS -tHP
-tQHS -ns21
Clock half period tHP tCLmin
or tCHmin -tCLmin
or tCHmin -tCLmin
or tCHmin -tCLmin
or tCHmin - ns 20, 21
Data hold skew factor tQHS 0.5 0.55 0.75 0.75 ns 21
DQS write postamble time tWPST 0.4 0.6 0.4 0.6 0.4 0.6 0.4 0.6 tCK 12
Active to Read with Auto precharge
command tRAP 15 18 20 20
Autoprecharge write recovery +
Precharge time tDAL (tWR/tCK)
+
(tRP/tCK)
(tWR/tCK)
+
(tRP/tCK)
(tWR/tCK)
+
(tRP/tCK)
(tWR/tCK)
+
(tRP/tCK) tCK 23
12.0 AC Timming Parameters & Specifications
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
The following specification parameters are required in systems using DDR333, DDR266 & DDR200 devices to ensure proper system
performance. these characteristics are for system simulation purposes and are guaranteed by design.
Table 1 : Input Slew Rate for DQ, DQS, and DM
Table 2 : Input Setup & Hold Time Derating for Slew Rate
Table 3 : Input/Output Setup & Hold Time Derating for Slew Rate
Table 4 : Input/Output Setup & Hold Derating for Rise/Fall Delta Slew Rate
Table 5 : Output Slew Rate Characteristice (X4, X8 Devices only)
Table 6 : Output Slew Rate Characteristice (X16 Devices only)
Table 7 : Output Slew Rate Matching Ratio Characteristics
AC CHARACTERISTICS DDR333 DDR266 DDR200
PARAMETER SYMBOL MIN MAX MIN MAX MIN MAX Units Notes
DQ/DM/DQS input slew rate measured between
VIH(DC), VIL(DC) and VIL(DC), VIH(DC) DCSLEW TBD TBD TBD TBD 0.5 4.0 V/ns a, m
Input Slew Rate tIS tIH Units Notes
0.5 V/ns 0 0 ps i
0.4 V/ns +50 0 ps i
0.3 V/ns +100 0 ps i
Input Slew Rate tDS tDH Units Notes
0.5 V/ns 0 0 ps k
0.4 V/ns +75 +75 ps k
0.3 V/ns +150 +150 ps k
Delta Slew Rate tDS tDH Units Notes
+/- 0.0 V/ns 0 0 ps j
+/- 0.25 V/ns +50 +50 ps j
+/- 0.5 V/ns +100 +100 ps j
Slew Rate Characteristic Typical Range
(V/ns) Minimum
(V/ns) Maximum
(V/ns) Notes
Pullup Slew Rate 1.2 ~ 2.5 1.0 4.5 a,c,d,f,g,h
Pulldown slew 1.2 ~ 2.5 1.0 4.5 b,c,d,f,g,h
Slew Rate Characteristic Typical Range
(V/ns) Minimum
(V/ns) Maximum
(V/ns) Notes
Pullup Slew Rate 1.2 ~ 2.5 0.7 5.0 a,c,d,f,g,h
Pulldown slew 1.2 ~ 2.5 0.7 5.0 b,c,d,f,g,h
AC CHARACTERISTICS DDR266B DDR200
PARAMETER MIN MAX MIN MAX Notes
Output Slew Rate Matching Ratio (Pullup to Pulldown) TBD TBD 0.67 1.5 e,m
13.0 System Characteristics for DDR SDRAM
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
1. All voltages referenced to Vss.
2. Tests for ac timing, IDD, and electrical, ac and dc characteristics, may be conducted at nominal reference/supply voltage levels, but the related speci-
fications and device operation are guaranteed for the full voltage range specified.
3. Figure 1 represents the timing reference load used in defining the relevant timing parameters of the part. It is not intended to be either a precise rep-
resentation of the typical system environment nor a depiction of the actual load presented by a production tester. System designers will use IBIS or
other simulation tools to correlate the timing reference load to a system environment. Manufacturers will correlate to their production test conditions
(generally a coaxial transmission line terminated at the tester electronics).
4. AC timing and IDD tests may use a VIL to VIH swing of up to 1.5 V in the test environment, but input timing is still referenced to VREF (or to the cross-
ing point for CK/CK), and parameter specifications are guaranteed for the specified ac input levels under normal use conditions. The minimum slew
rate for the input signals is 1 V/ns in the range between VIL(ac) and VIH(ac).
5. The ac and dc input level specifications are as defined in the SSTL_2 Standard (i.e., the receiver will effectively switch as a result of the signal crossing
the ac input level and will remain in that state as long as the signal does not ring back above (below) the dc input LOW (HIGH) level.
6. Inputs are not recognized as valid until VREF stabilizes. Exception: during the period before VREF stabilizes, CKE 0.2VDDQ is recognized as LOW.
7. Enables on.chip refresh and address counters.
8. IDD specifications are tested after the device is properly initialized.
9. The CK/CK input reference level (for timing referenced to CK/CK) is the point at which CK and CK cross; the input reference level for signals other
than CK/CK, is VREF.
10. The output timing reference voltage level is VTT.
11. tHZ and tLZ transitions occur in the same access time window s as valid data transitions. Th ese parameters are not referenced to a specific voltage
level but specify when the device output is no longer driving (HZ), or begins driving (LZ).
12. The maximum limit for this parameter is not a device limit. The device will operate with a greater value for this parameter, but sys tem performance
(bus turnaround) will degrade accordingly.
13. The specific requirement is that DQS be valid (HIGH, LOW, or at some point on a valid transition) on or before this CK edge. A valid transition is
defined as monotonic and meeting the input slew rate specifications of the device. when no writes were previ ously in pro g ress on the bus, DQS will
be tran sitioning from High- Z to logic LOW. If a previous write was in progress, DQS could be HIGH, LOW , or transitioning from HIGH to LOW at this
time, depending on tDQSS.
14. A maximum of eight AUTO REFRESH commands can be posted to any given DDR SDRAM device.
15. For command/address input slew rate 1.0 V/ns
16. For command/address input slew rate 0.5 V/ns and < 1.0 V/ns
17. For CK & CK slew rate 1.0 V/ns
18. These parameters guarantee device timing, but they are not necessarily tested on each device. They may be guaranteed by device design or tester
correlation.
19. Slew Rate is measured between VOH(ac) and VOL(ac).
20. Min (tCL, tCH) refers to the smaller of the actual clock low time and the actual clock high time as provided to the device (i.e. this value can be greater
than the minimum specification limits for tCL and tCH).....For example, tCL and tCH are = 50% of the period, less the half period jitter (tJIT(HP)) of the
clock source, and less the half period jitter due to crosstalk (tJIT(crosstalk)) into the clock traces.
21. tQH = tHP - tQHS, where:
tHP = minimum half clock period for any given cycle and is defined by clock high or clock low (tCH, tCL). tQHS accounts for 1) The pulse duration dis-
tortion of on-chip clock circuits; and 2) The worst case push-out of DQS on one tansition followed by the worst case pull-in of DQ on the next transi-
tion, both of which are, separately, due to data pin skew and output pattern effects, and p channel to n-channel variation of the output drivers.
22. tDQSQ - Consists of data pin skew and output pattern effects, and p-channel to n-channel variation of the output drivers for any given cycle.
23. tDAL = (tWR/tCK) + (tRP/tCK)
For each of the terms above, if not already an integer , round to the next highest integer. Example: For DDR266B at CL=2.5 and tCK=7.5ns tDAL = (15
ns / 7.5 ns) + (20 ns/ 7.5ns) = (2) + (3) tDAL = 5 clocks
Output
VDDQ
50
30pF
(Vout)
Figure 1 : Timing Reference Load
14.0 Component Notes
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
b. Pulldown slew rate is measured under the test conditions shown in Figure 3.
Output Test point
VDDQ
50
Figure 3 : Pulldown slew rate test load
c. Pullup slew rate is measured between (VDDQ/2 - 320 mV +/- 250 mV)
Pulldown slew rate is measured between (VDDQ/2 + 320 mV +/- 250 mV)
Pullup and Pulldown slew rate conditions are to be met for any pattern of data, including all outputs switching and only one output switching.
Example : For typical slew rate, DQ0 is switching
For minmum slew rate, all DQ bits are switching from either high to low, or low to high.
The remaining DQ bits remain the same as for pr evious state.
d. Evaluation conditions
Typical : 25 °C (T Ambient), VDDQ = 2.5V(for DDR266/333) and 2.6V(for DDR400), typical process
Minimum : 70 °C (T Ambient), VDDQ = 2.3V(for DDR266/333) and 2.5V(for DDR400), slow - slow process
Maximum : 0 °C (T Ambient), VDDQ = 2.7V(for DDR266/333) and 2.7V(for DDR400), fast - fast process
e. The ratio of pullup slew rate to pulldown slew rate is specified for the same temperature and voltage, over the entire temperature and voltage range.
For a given output, it represents the maximum difference between pullup and pulldown drivers due to process variation.
f. Verified under typical conditions for qualification purposes.
g. TSOPII package divices only.
h. Only intended for operation up to 266 Mbps per pin.
i. A derating factor will be used to increase tIS and tIH in the case where the input slew rate is below 0.5V/ns as shown in Table 2. The Input slew rate is
based on the lesser of the slew rates detemined by either VIH(AC) to VIL(AC) or VIH(DC) to VIL(DC), similarly for rising transitions.
j. A derating factor will be used to increase tDS and tDH in the case where DQ, DM, and DQS slew rates differ, as shown in Tables 3 & 4. Input slew rate
is based on the larger of AC-AC delta rise, fall rate and DC-DC delta rise, Input slew rate is based on the lesser of the slew rates determined by either
VIH(AC) to VIL(AC) or VIH(DC) to VIL(DC), similarly for rising transitions. The delta rise/fall rate is calculated as: {1/(Slew Rate1)} - {1/(Slew Rate2)}
For example : If Slew Rate 1 is 0.5 V/ns and slew Rate 2 is 0.4 V/ns, then the delta rise, fall rate is - 0.5ns/V . Using the table given, this
would result in the need for an increase in tDS and tDH of 100 ps.
k. Table 3 is used to increase tDS and tDH in the case where the I/O slew rate is below 0.5 V/ns. The I/O slew rate is based on the lesser on the lesser of
the AC - AC slew rate and the DC- DC slew rate. The inut slew rate is based on the lesser of the slew rates deter mined by either VIH(ac) to VIL(ac) or
VIH(DC) to VIL(DC), and similarly for rising transitions.
m. DQS, DM, and DQ input slew rate is specified to prevent double clocking of data and preserve setup and hold times. Signal transi tions through the
DC region must be monotonic.
a. Pullup slew rate is characteristized under the test conditions as shown in Figure 2.
Output Test point
VSSQ
50
Figure 2 : Pullup slew rate test load
15.0 System Notes:
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
(V=Valid, X=Dont Care, H=Logic High, L=Logic Low)
Note :
1. OP Code : Operand Code. A0 ~ A12 & BA0 ~ BA1 : Program keys. (@EMRS/MRS)
2. EMRS/ MRS can be issued only at all banks precharge state. A new command can be issued 2 clock cycles after EMRS or MRS.
3. Auto refresh functions are same as the CBR refresh of DRAM.
The automatical precharge without row precharge command is meant by "Auto".
Auto/self refresh can be issued only at all banks precharge state.
4. BA0 ~ BA1 : Bank select addresses.
If both BA0 and BA1 are "Low" at read, write, row active and precharge, bank A is selected.
If BA0 is "High" and BA1 is "Low" at read, write, row active and precharge, bank B is selected.
If BA0 is "Low" and BA1 is "High" at read, write, row active and precharge, bank C is selected.
If both BA0 and BA1 are "High" at read, write, row active and precharge, bank D is selected.
5. If A10/AP is "High" at row precharge, BA0 and BA1 are ignored and all banks are selected.
6. During burst write with auto precharge, new read/write command can not be issued.
Another bank read/write command can be issued after the end of burst.
New row active of the associated bank can be issued at tRP after the end of burst.
7. Burst stop command is valid at every burst length.
8. DM sampled at the rising and falling edges of the DQS and Data-in are masked at the both edges (Write DM latency is 0).
9. This combination is not defined for any function, which means "No Operation(NOP)" in DDR SDRAM.
COMMAND CKEn-1 CKEn CS RAS CAS WE BA0,1 A10/AP A0 ~ A9
A11, A12 Note
Register Extended MRS H X L L L L OP CODE 1, 2
Register Mode Register Set H X L L L L OP CODE 1, 2
Refresh
Auto Refresh HHLL LH X 3
Self
Refresh
Entry L 3
Exit L H LHHH X3
HX XX 3
Bank Active & Row Addr. H X L L H H V Row Address
(A0~A9, A11,A12)
Read &
Column Address Auto Precharge Disable HXLHLHV
LColumn
Address 4
Auto Precharge Enable H 4
Write &
Column Address Auto Precharge Disable HXLHLLV
LColumn
Address 4
Auto Precharge Enable H 4, 6
Burst Stop H X L H H L X 7
Precharge Bank Selection HXLLHL
VL X
All Banks X H 5
Active Power Down Entry H L HX XX XLVVV
Exit L H X X X X
Precharge Power Down Mode Entry H L HX XX
X
LHHH
Exit L H HX XX
LVVV
DM H X X 8
No operation (NOP) : Not defined H X HX XX X9
LHHH 9
16.0 Command Truth Table
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
Units : Inches (Millimeters)
Tolerances : ± 0.005(.13) unless otherwise specified
The used device is 64Mx8 DDR SDRAM, TSOPII
SDRAM Part No : K4H510838C
A B
REG
PLL
A B
5.25 ± 0.005
5.171
(131.350)
(133.350 ± 0.13)
(30.48 +/-0.15)
1.2 +/-0.06
5.077
(128.950)
0.393
(10.00)
(19.80)
0.78
(17.80)
0.7
0.10 MCBA
R (2.00)
0.0787
(3.00 Min)
0.118 Min
REG
0.157 Max
0.050 ± 0.0039
(1.270 ± 0.10)
(3.99 Max)
(4.00)
(0.157)
0.050
0.0078 ±0.006
(0.20 ±0.15)
(1.270)
0.100 ± 0.0079
(2.50 ± 0.2 )
Detail B
0.250
(6.350)
Detail A
0.071
(1.80)
0.039 ± 0.002
(1.000 ± 0.050)
(3.80)
2.175
0.10 MCA
0.1496
(3.00 Min)
0.118 Min
R (2.00)
0.0787
(4.00 ± 0.1)
0.1575 ± 0.004
MB
0.100
(2.30)
2.500 +0.1/-0.0
17.1 64M x 72 (M312L6523CUS)
17.0 Physical Dimensions
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
Units : Inches (Millimeters)
Tolerances : ± 0.005(.13) unless otherwise specified
The used device is 64Mx8, 128Mx4 DDRSDRAM, TSOPII
SDRAM Part No. : K4H510838C, K4H510438C
A B
REG
PLL
A B
5.25 ± 0.005
5.171
(131.350)
(133.350 ± 0.13)
5.077
(128.950)
0.393
(10.00)
(19.80)
0.78
(17.80)
0.7
0.10 MCBA
R (2.00)
0.0787
REG
0.157 Max
0.050 ± 0.0039
(1.270 ± 0.10)
(3.99 Max)
(4.00)
(0.157)
(30.48 +/-0.15)
1.2 +/-0.06
(3.00 Min)
0.118 Min
0.050
0.0078 ±0.006
(0.20 ±0.15)
(1.270)
0.100 ± 0.0079
(2.50 ± 0.2 )
Detail B
0.250
(6.350)
Detail A
0.071
(1.80)
0.039 ± 0.002
(1.000 ± 0.050)
(3.80)
2.175
0.10 MCA
0.1496
(3.00 Min)
0.118 Min
R (2.00)
0.0787
(4.00 ± 0.1)
0.1575 ± 0.004
MB
0.100
(2.30)
2.500 +0.1/-0.0
17.2 128Mx72 (M312L2923CUS), 128Mx72 (M312L2920CUS)
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
Units : Inches (Millimeters)
Tolerances : ± 0.005(.13) unless otherwise specified
The used device is st.256Mx4 SDRAM, 66TSOPII
SDRAM Part NO : K4H1G0638C
A B
PLL
A B
5.25 ± 0.005
5.171
(131.350)
(133.350 ± 0.13)
5.077
(128.950)
0.393
(10.00)
(19.80)
0.78
(17.80)
0.7
0.10 MCBA
R (2.00)
0.0787
Reg.
0.268 Max
0.050 ± 0.0039
(1.270 ± 0.10)
(6.81 Max)
(4.00)
(0.157)
(30.48 +/-0.15)
1.2 +/-0.06
(3.00 Min)
0.118 Min
0.100
(2.30)
2.500 +0.1/-0 .0
0.050
0.0078 ±0.006
(0.20 ±0.15)
(1.270)
0.100 ± 0.0079
(2.50 ± 0.2 )
Deta il B
0.250
(6.350)
Detail A
0.071
(1.80)
0.039 ± 0.002
(1.000 ± 0.050)
(3.80)
2.175
0.10 MCA
0.1496
(3.00 Min)
0.118 Min
R (2.00)
0.0787
(4.00 ± 0.1)
0.1575 ± 0.004
MB
17.3 st.256Mx72 (M312L5628CU0)
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
Tolerances : ± 0.005(.13) unless otherwise specified
The used device is 64Mx8 DDR SDRAM, FBGA
DDR SDRAM Part No. : K4H510838C-Z***,
133.35 A
128.95 A
2x 3.00 MIN W1
4x 4.00+/-0.1 V1
64.77 P2 49.53 P3
120.65 P1
19.80 B1
28.575 +/-0.15 B
6.35
ab
10.00 B2
192
Detail BDetail A
3.80 W
X1 X2
6.35 X
2.175 4.175
V1.80
D1.0 +/-0.05
0.20 +/-0.15 T
2.50 G
E
1.27
MAX 0.178 D1
Units : Millimeters
2.99 MAX
12.00
18493
1.27 +/-0.1
2x DIA. 2.50 +0.1/-0.00 N
17.4 64Mx72 (M312L6523CZ0)
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
Tolerances : ± 0.005(.13) unless otherwise specified
The used device is 64Mx8, 128Mx4 DDR SDRAM, FBGA
DDR SDRAM Part No. : K4H510838C-Z***, K4H510438C-Z***
133.35 A
128.95 A
2x 3.00 MIN W1
4x 4.00+/-0.1 V1
64.77 P2 49.53 P3
120.65 P1
19.80 B1
28.575 +/-0.15 B
6.35
ab
10.00 B2
192
Detail BDetail A
3.80 W
X1 X2
6.35 X
2.175 4.175
V1.80
D1.0 +/-0.05
0.20 +/-0.15 T
2.50 G
E
1.27
MAX 0.178 D1
Units : Millimeters
18493
3.99 MAX
12.00
1.27 +/-0.1
2x DIA. 2.50 +0.1/-0.00 N
17.5 128Mx72 (M312L2923CZ0), (M312L2920CZ0)
DDR SDRAM
512MB, 1GB, 2GB Registered DIMM
Rev. 1.2 June 2005
Tolerances : ± 0.005(.13) unless otherwise specified
The used device is 128Mx4 DDR SDRAM, FBGA
DDR SDRAM Part No : K4H510438C-Z***
Units : Millimeters
133.35 A
128.95 A
2x 3.00 MIN W1
4x 4.00+/-0.1 V1
64.77 P2 49.53 P3
120.65 P1
19.80 B1
30.48 +/-0.15 B
6.35
ab
10.00 B2
192
Detail BDet ail A
3.80 W
X1 X2
6.35 X
2.175 4.175
V1.80
D1.0 +/-0.05
0.20 +/-0 .15 T
2.50 +/-0.2 G
E
1.27
MAX 0.178 D1
3.99 MAX
12.0 10.0
18493
1.27 +/-0.1
2x DIA. 2.50 +0.1/-0.00 N
17.6 256Mx72 (M312L5720CZ0)