NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 1
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
240pin Unbuffered DDR2 SDRAM MODULE with ECC
Based on 128Mx8 DDR2 SDRAM D-die
Features
Performance:
PC2-5300
PC2-6400
PC2-6400
Unit
Speed Sort
-3C
-AD
-AC
DIMM Latency
5
6
5
f CK
Clock Frequency
333
400
400
MHz
t CK
Clock Cycle
3
2.5
2.5
ns
f DQ
DQ Burst Frequency
667
800
800
Mbps
• JEDEC Standard 240-pin Dual In-Line Memory Module
• 128Mx72 and 256Mx72 DDR2 Unbuffered DIMM based on
128Mx8 DDR2 SDRAM D-die
• Double Data Rate architecture; two data transfer per clock cycle
• Differential bi-directional data strobe (DQS & )
• DQS is edge-aligned with data for reads and is center-aligned
with data for writes
• Differential clock inputs (CK & )
• Intended for 333MHz/400MHz applications
• Inputs and outputs are SSTL-18 compatible
• VDD = VDDQ = 1.8V ± 0.1V
• 7.8 μs Max. Average Periodic Refresh Interval
• Programmable Operation:
- Device Latency: 3, 4, 5 (-3C/-AC); 4, 5, 6 (-AD)
- Burst Length: 4, 8
• Auto Refresh (CBR) and Self Refresh Modes
• Automatic and controlled precharge commands
• 14/10/1 Addressing (row/column/rank) – 1GB
• 14/10/2 Addressing (row/column/rank) – 2GB
• Serial Presence Detect
• On Die Termination (ODT)
• OCD impedance adjustment
• Gold contacts
• SDRAMs in 60-ball BGA Package
• RoHs Compliance
Description
NT1GT72U89D0BY and NT2GT72U8PD0BY are 240-Pin Double Data Rate 2 (DDR2) Synchronous DRAM Unbuffered Dual In-Line
Memory Module with ECC (UDIMM/ECC), organized as one rank 128Mx72 and two ranks 256Mx72 high-speed memory array. Modules
use nine 128Mx8 DDR2 SDRAMs and eighteen 128Mx8 DDR2 SDRAMs in BGA packages. These DIMMs are manufactured using raw
cards developed for broad industry use as reference designs. The use of these common design files minimizes electrical variation
between suppliers. All NANYA DDR2 SDRAM DIMMs provide a high-performance, flexible 8-byte interface in a 5.25” long space-saving
footprint.
The DIMM is intended for use in applications operating up to 333MHz (or 400MHz) clock speeds and achieves high-speed data transfer
rates of up to 667Mbps (or 800Mbps). Prior to any access operation, the device latency and burst / length /operation type must be
programmed into the DIMM by address inputs A0-A13 and I/O inputs BA0, BA1 and BA2 using the mode register set cycle.
The DIMM uses serial presence-detect implemented via a serial 2,048-bit EEPROM using a standard IIC protocol. The first 128 bytes of
serial PD data are programmed and locked during module assembly. The remaining 128 bytes are available for use by the customer.
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 2
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Ordering Information
Part Number
Speed
Organization
Leads
Power
Note
NT1GT72U89D0BY-3C
333MHz (3.00ns @ CL = 5)
DDR2-667
PC2-5300
128Mx72
GOLD
1.8V
NT1GT72U89D0BY-AD
400MHz (2.50ns @ CL = 6)
DDR2-800
PC2-6400
NT1GT72U89D0BY-AC
400MHz (2.50ns @ CL = 6)
DDR2-800
PC2-6400
NT2GT72U8PD0BY-3C
333MHz (3.00ns @ CL = 5)
DDR2-667
PC2-5300
256Mx72
NT2GT72U8PD0BY-AD
400MHz (2.50ns @ CL = 6)
DDR2-800
PC2-6400
NT2GT72U8PD0BY-AC
400MHz (2.50ns @ CL = 6)
DDR2-800
PC2-6400
Pin Description
CK0~CK2
Differential Clock Inputs
DQ0-DQ63
Data input/output
CKE0, CKE1
Clock Enable
CB0-CB7
ECC Check Bit Data Input/Output
Row Address Strobe
DQS0-DQS8
Bidirectional data strobes
Column Address Strobe
DM0-DM8
Input Data Mask
Write Enable
-
Differential data strobes
,
Chip Selects
VDD
Power (1.8V)
A0-A9, A0-A13
Address Inputs
VREF
Ref. Voltage for SSTL_18 inputs
A10/AP
Column Address Input/Auto-precharge
VDDSPD
Serial EEPROM positive power supply
BA0 ~ BA2
SDRAM Bank Address Inputs
VSS
Ground
RESET
Reset pin
SCL
Serial Presence Detect Clock Input
ODT0, ODT1
On-die termination control lines
SDA
Serial Presence Detect Data input/output
NC
No Connect
SA0 ~ SA2
Serial Presence Detect Address Inputs
Note: ODT1, CKE1 and are only support in 2GB module type.
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 3
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Pinout
Pin
Front
Pin
Front
Pin
Front
Pin
Back
Pin
Back
Pin
Back
1
VREF
42
CB0
82
VSS
121
VSS
162
CB5
202
DM4
2
VSS
43
CB1
83
122
DQ4
163
VSS
203
NC
3
DQ0
44
VSS
84
DQS4
123
DQ5
164
DM8
204
VSS
4
DQ1
45
85
VSS
124
VSS
165
NC
205
DQ38
5
VSS
46
DQS8
86
DQ34
125
DM0
166
VSS
206
DQ39
6
47
VSS
87
DQ35
126
NC
167
CB6
207
VSS
7
DQS0
48
CB2
88
VSS
127
VSS
168
CB7
208
DQ44
8
VSS
49
CB3
89
DQ40
128
DQ6
169
VSS
209
DQ45
9
DQ2
50
VSS
90
DQ41
129
DQ7
170
VDDQ
210
VSS
10
DQ3
51
VDDQ
91
VSS
130
VSS
171
NC,CKE1
211
DM5
11
VSS
52
CKE0
92
131
DQ12
172
VDD
212
NC
12
DQ8
53
VDD
93
DQS5
132
DQ13
173
NC
213
VSS
13
DQ9
54
BA2
94
VSS
133
VSS
174
NC
214
DQ46
14
VSS
55
NC
95
DQ42
134
DM1
175
VDDQ
215
DQ47
15
56
VDDQ
96
DQ43
135
NC
176
A12
216
VSS
16
DQS1
57
A11
97
VSS
136
VSS
177
A9
217
DQ52
17
VSS
58
A7
98
DQ48
137
CK1
178
VDD
218
DQ53
18
NC
59
VDD
99
DQ49
138
179
A8
219
VSS
19
NC
60
A5
100
VSS
139
VSS
180
A6
220
CK2
20
VSS
61
A4
101
SA2
140
DQ14
181
VDDQ
221
21
DQ10
62
VDDQ
102
NC
141
DQ15
182
A3
222
VSS
22
DQ11
63
A2
103
VSS
142
VSS
183
A1
223
DM6
23
VSS
64
VDD
104
143
DQ20
184
VDD
224
NC
24
DQ16
KEY
105
DQS6
144
DQ21
KEY
225
VSS
25
DQ17
65
VSS
106
VSS
145
VSS
185
CK0
226
DQ54
26
VSS
66
VSS
107
DQ50
146
DM2
186
227
DQ55
27
67
VDD
108
DQ51
147
NC
187
VDD
228
VSS
28
DQS2
68
NC
109
VSS
148
VSS
188
A0
229
DQ60
29
VSS
69
VDD
110
DQ56
149
DQ22
189
VDD
230
DQ61
30
DQ18
70
A10/AP
111
DQ57
150
DQ23
190
BA1
231
VSS
31
DQ19
71
BA0
112
VSS
151
VSS
191
VDDQ
232
DM7
32
VSS
72
VDDQ
113
152
DQ28
192
233
NC
33
DQ24
73
114
DQS7
153
DQ29
193
234
VSS
34
DQ25
74
115
VSS
154
VSS
194
VDDQ
235
DQ62
35
VSS
75
VDDQ
116
DQ58
155
DM3
195
ODT0
236
DQ63
36
76
NC,
117
DQ59
156
NC
196
A13
237
VSS
37
DQS3
77
NC,ODT1
118
VSS
157
VSS
197
VDD
238
VDDSPD
38
VSS
78
VDDQ
119
SDA
158
DQ30
198
VSS
239
SA0
39
DQ26
79
VSS
120
SCL
159
DQ31
199
DQ36
240
SA1
40
DQ27
80
DQ32
160
VSS
200
DQ37
41
VSS
81
DQ33
161
CB4
201
VSS
Note: , ODT1 and CKE1 (Pins 76, 77 and 171) are only support in 2GB module type.
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 4
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Input/Output Functional Description
Symbol
Type
Polarity
Function
CK0, CK1, CK2
(SSTL)
Positive
Edge
The positive line of the differential pair of system clock inputs which drives the input to
the on-DIMM PLL. All the DDR2 SDRAM address and control inputs are sampled on the
rising edge of their associated clocks.
, ,
(SSTL)
Negative
Edge
The negative line of the differential pair of system clock inputs which drives the input to
the on-DIMM PLL.
CKE0, CKE1
(SSTL)
Active
High
Activates the SDRAM CK signal when high and deactivates the CK signal when low. By
deactivating the clocks, CKE low initiates the Power Down mode, or the Self Refresh
mode. CKE1 apply on 2GB UDIMM/ECC only.
,
(SSTL)
Active
Low
Enables the associated SDRAM command decoder when low and disables the
command decoder when high. When the command decoder is disabled, new commands
are ignored but previous operations continue. apply on 2GB UDIMM/ECC only.
, ,
(SSTL)
Active
Low
When sampled at the positive rising edge of the clock, , , define the
operation to be executed by the SDRAM.
VREF
Supply
Reference voltage for SSTL-18 inputs
VDDQ
Supply
Isolated power supply for the DDR SDRAM output buffers to provide improved noise
immunity
ODT0, ODT1
Input
Active
High
On-Die Termination control signals. ODT1 apply on 2GB UDIMM/ECC only.
BA0 – BA2
(SSTL)
-
Selects which SDRAM bank is to be active.
A0 - A9
A10/AP
A11 - A13
(SSTL)
-
During a Bank Activate command cycle, A0-A13 defines the row address (RA0-RA13)
when sampled at the rising clock edge.
During a Read or Write command cycle, A0-A9 defines the column address (CA0-CA9)
when sampled at the rising clock edge. In addition to the column address, AP is used to
invoke “Autoprecharge” operation at the end of the Burst Read or Write cycle. If AP is
high, autoprecharge is selected and BA0/BA1 defines the bank to be precharged. If AP
is low, autoprecharge is disabled. During a Precharge command cycle, AP is used in
conjunction with BA0/BA1 to control which bank(s) to precharge. If AP is high all 4 banks
will be precharged regardless of the state of BA0/BA1. If AP is low, then BA0/BA1are
used to define which bank to pre-charge.
DQ0 – DQ63
CB0 – CB7
(SSTL)
Active
High
Data and Check Bit Input/Output pins. Check bits are only applicable on the x72 DIMM
configurations.
VDD, VSS
Supply
Power and ground for the DDR2 SDRAM input buffers and core logic
DQS0 – DQS8
–
(SSTL)
Negative
and
Positive
Edge
Data strobe for input and output data
DM0 – DM8
Input
Active
High
The data write masks, associated with one data byte. In Write mode, DM operates as a
byte mask by allowing input data to be written if it is low but blocks the write operation if
it is high. In Read mode, DM lines have no effect. DM8 is associated with check bits
CB0-CB7, and is not used on x64 modules.
SA0 – SA2
-
Address inputs. Connected to either VDD or VSS on the system board to configure the
Serial Presence Detect EEPROM address.
SDA
-
This bi-directional pin is used to transfer data into or out of the SPD EEPROM. A resistor
must be connected from the SDA bus line to V DD to act as a pull-up.
SCL
-
This signal is used to clock data into and out of the SPD EEPROM. A resistor may be
connected from the SCL bus time to V DD to act as a pull-up.
V DDSPD
Supply
Serial EEPROM positive power supply.
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 5
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Functional Block Diagram
(1GB, 1 Rank, 128Mx8 DDR2 SDRAMs)
Serial PD
A0 A2A1
SCL WP SDA
SA0 SA2
SA1
SPDVDDSPD
VDD/VDDQ
VREF
VSS
CS0
DM1
DQS1
DQ8
DQ9
DQ10
DQ15
DQ12
DQ14
DQ13
DQ11
DQS2
DQ16
DQ17
DQ18
DQ23
DQ20
DQ22
DQ21
DQ19
DM2
DQS3
DQ24
DQ25
DQ26
DQ31
DQ28
DQ30
DQ29
DQ27
DM3
DM0
DQS0
DQ0
DQ1
DQ2
DQ7
DQ4
DQ6
DQ5
DQ3
DM5
DQS5
DQS 5
DQ40
DQ41
DQ42
DQ47
DQ44
DQ46
DQ45
DQ43
DM6
DQS6
DQS6
DQ48
DQ49
DQ50
DQ55
DQ52
DQ54
DQ53
DQ51 D6
DQSDM
DM7
DQS7
DQ56
DQ57
DQ58
DQ63
DQ60
DQ62
DQ61
DQ59 D7
DQSDM
DQS 4
DQ32
DQ33
DQ34
DQ39
DQ36
DQ38
DQ37
DQ35
DQS4
DM 4
D2
DQSDM
D3
DQS
DM
BA0-BA2
A0-A13
RAS
CAS
CKE0
WE
A0-A13 :
BA0-BA2 :
RAS :
CKE :
CAS :
WE : SDRAMs D0-D8
ODT0 ODT :
DQS0
DQS1
DQS2
DQS3
CS DQS
CS DQS
CS DQS
CS DQS
DQS7
SDRAMs D0-D8
SDRAMs D0-D8
SDRAMs D0-D8
SDRAMs D0-D8
SDRAMs D0-D8
SDRAMs D0-D8
D0-D8
D0-D8
D0-D8
D0
DQSDM CS DQS
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
D1
DQSDM CS DQS
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
D4
DQSDM CS DQS
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
D5
DQSDM CS DQS
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
DM8
DQS8
CB0
D8
DQSDM CS DQS
DQS8
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
CB1
CB2
CB3
CB4
CB6
CB7
CB5
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 6
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Functional Block Diagram
(2GB, 2 Ranks, 128Mx8 DDR2 SDRAMs)
Serial PD
A0 A2A1
SCL WP SDA
SA0 SA2
SA1
SPDVDDSPD
VDD/VDDQ
VREF
VSS
CS0
DM1
DQS1
DQ8
DQ9
DQ10
DQ15
DQ12
DQ14
DQ13
DQ11
DQS2
DQ16
DQ17
DQ18
DQ23
DQ20
DQ22
DQ21
DQ19
DM2
DQS3
DQ24
DQ25
DQ26
DQ31
DQ28
DQ30
DQ29
DQ27
DM3
DM0
DQS0
DQ0
DQ1
DQ2
DQ7
DQ4
DQ6
DQ5
DQ3
DM5
DQS5
DQS 5
DQ40
DQ41
DQ42
DQ47
DQ44
DQ46
DQ45
DQ43
DM6
DQS6
DQS6
DQ48
DQ49
DQ50
DQ55
DQ52
DQ54
DQ53
DQ51 D6
DQSDM
DM7
DQS7
DQ56
DQ57
DQ58
DQ63
DQ60
DQ62
DQ61
DQ59 D7
DQSDM
DQS 4
DQ32
DQ33
DQ34
DQ39
DQ36
DQ38
DQ37
DQ35
DQS4
DM 4
D2
DQSDM
D3
DQS
DM
D11
DQSDM
D12
DQSDM
D15
DQSDM
D16
DQSDM
BA0-BA2
A0-A13
RAS
CAS
CKE0
WE
A0-A13 :
BA0-BA2 :
RAS :
CKE :
CAS :
WE :
CKE1 CKE :
SDRAMs D0-D17
ODT0 ODT :
ODT1 ODT :
CS 1
DQS0
DQS1
DQS2
DQS3
CS DQS
CS DQS
CS DQS
CS DQS
CS DQS
CS DQS
CS DQS
CS DQS
DQS7
SDRAMs D0-D17
SDRAMs D0-D17
SDRAMs D0-D17
SDRAMs D 0-D17
SDRAMs D9-D17
SDRAMs D9-D17
SDRAMs D0-D8
SDRAMs D0-D8
D0-D17
D0-D17
D0-D17
D0
DQSDM CS DQS
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
D9
DQSDM CS DQS
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
D1
DQSDM CS DQS
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
D13
DQSDM CS DQS
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
D4
DQSDM CS DQS
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
D10
DQSDM CS DQS
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
D5
DQSDM CS DQS
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7 I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
D14
DQSDM CS DQS
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
DM8
DQS8
CB0
D8
DQSDM
D17
DQSDM
CS DQS CS DQS
DQS8
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
I
I/O 0
I/O 1
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
/O 7
CB1
CB2
CB3
CB4
CB6
CB7
CB5
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 7
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Serial Presence Detect -- Part 1 of 2 (1GB)
128Mx72 1 RANK UNBUFFERED DDR2 SDRAM DIMM based on 128Mx8, 8Banks, 8K Refresh, 1.8V DDR2 SDRAMs with SPD
Byte
Description
SPD Entry Value
Serial PD Data Entry
(Hexadecimal)
Note
667
-3C
800
-AD
800
-AC
667
-3C
800
-AD
800
-AC
0
Number of Serial PD Bytes Written during Production
128
80
1
Total Number of Bytes in Serial PD device
256
08
2
Fundamental Memory Type
DDR2
08
3
Number of Row Addresses on Assembly
14
0E
4
Number of Column Addresses on Assembly
10
0A
5
Number of DIMM Ranks
1 rank, Height=30mm
60
6
Data Width of Assembly
X72
48
7
Reserved
Undefined
00
8
Voltage Interface Level of this Assembly
SSTL_1.8V
05
9
DDR2 SDRAM Device Cycle Time at CL=5
3.0ns
2.5ns
30
25
10
DDR2 SDRAM Device Access Time from Clock at CL=5
0.45ns
0.4ns
45
40
11
DIMM Configuration Type
ECC
02
12
Refresh Rate/Type
7.8s
82
13
Primary DDR2 SDRAM Width
X8
08
14
Error Checking DDR2 SDRAM Device Width
X8
08
15
Reserved
Undefined
00
16
DDR2 SDRAM Device Attributes: Burst Length Supported
4,8
0C
17
DDR2 SDRAM Device Attributes: Number of Device Banks
8
08
18
DDR2 SDRAM Device Attributes: CAS Latencies Supported
3,4,5
4,5,6
3,4,5
38
70
38
19
DIMM Mechanical Characteristics
x ≤ 4.10 (mm)
01
20
DDR2 SDRAM DIMM Type Information
UDIMM (133.5mm)
02
21
DDR2 SDRAM Module Attributes:
Normal DIMM
00
22
DDR2 SDRAM Device Attributes: General
Support weak driver,
50 ODT, and PASR
07
23
Minimum Clock Cycle at CL=4
3.75ns
3.0ns
3.75ns
3D
30
3D
24
Maximum Data Access Time from Clock at CL=4
0.5ns
0.45ns
0.5ns
50
45
50
25
Minimum Clock Cycle Time at CL=3
5.0ns
3.75ns
5.0ns
50
3D
50
26
Maximum Data Access Time from Clock at CL=3
0.6ns
0.5ns
0.6ns
60
50
60
27
Minimum Row Precharge Time (tRP)
15ns
12.5ns
3C
32
28
Minimum Row Active to Row Active delay (tRRD)
7.5ns
1E
29
Minimum RAS to CAS delay (tRCD)
15ns
12.5ns
3C
32
30
Minimum RAS Pulse Width (tRAS)
45ns
2D
31
Module Bank Density
1GB
01
32
Address and Command Setup Time Before Clock (tIS)
0.20ns
0.17ns
20
17
33
Address and Command Hold Time After Clock (tIH)
0.27ns
0.25ns
27
25
34
Data Input Setup Time Before Clock (tDS)
0.10ns
0.05ns
10
05
35
Data Input Hold Time After Clock (tDH)
0.175ns
0.12ns
17
12
36
Write Recovery Time (tWR)
15.0ns
3C
37
Internal Write to Read Command delay (tWTR)
7.5ns
1E
38
Internal Read to Precharge delay (tRTP)
7.5ns
1E
39
Reserved
Undefined
00
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 8
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Serial Presence Detect -- Part 2 of 2 (1GB)
128Mx72 1 RANK UNBUFFERED DDR2 SDRAM DIMM based on 128Mx8, 8Banks, 8K Refresh, 1.8V DDR2 SDRAMs with SPD
Byte
Description
SPD Entry Value
Serial PD Data Entry
(Hexadecimal)
Note
667
-3C
800
-AD
800
-AC
667
-3C
800
-AD
800
-AC
40
Extension of Byte 41 tRC and Byte 42 tRFC
The number below a
decimal point of tRC and
tRFC are 0, tRFC is less
than 256ns.
06
36
41
Minimum Core Cycle Time (tRC)
60.0ns
57.5ns
3C
39
42
Min. Auto Refresh Command Cycle Time (tRFC)
127.5ns
7F
43
Maximum Clock Cycle Time (tCK)
8.0ns
80
44
Max. DQS-DQ Skew Factor (tQHS)
0.24ns
0.20ns
18
14
45
Read Data Hold Skew Factor (tQHS)
0.34ns
0.30ns
22
1E
46
PLL Relock Time
Undefined
00
46-61
Reserved
Undefined
00
62
SPD Revision
1.3
13
63
Checksum for bytes 0-62
Checksum Data
29
F3
0F
64-71
Manufacture’s JEDEC ID Code
NANYA
7F7F7F0B00000000
72
Module Manufacturing Location
Manufacturing Code
--
73-91
Module Part number
Module Part Number in
ASCII
--
1
92-255
Reserved
Undefined
--
Note 1:
NT1GT72U89D0BY-3C 4E543147543732553839443042592D33432020
NT1GT72U89D0BY-AD 4E543147543732553839443042592D41442020
NT1GT72U89D0BY-AC 4E543147543732553839443042592D41432020
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 9
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Serial Presence Detect -- Part 1 of 2 (2GB)
256Mx72 2 RANKs UNBUFFERED DDR2 SDRAM DIMM based on 128Mx8, 8Banks, 8K Refresh, 1.8V DDR2 SDRAMs with SPD
Byte
Description
SPD Entry Value
Serial PD Data Entry
(Hexadecimal)
Note
667
-3C
800
-AD
800
-AC
667
-3C
800
-AD
800
-AC
0
Number of Serial PD Bytes Written during Production
128
80
1
Total Number of Bytes in Serial PD device
256
08
2
Fundamental Memory Type
DDR2
08
3
Number of Row Addresses on Assembly
14
0E
4
Number of Column Addresses on Assembly
10
0A
5
Number of DIMM Ranks
2 ranks, Height=30mm
61
6
Data Width of Assembly
X72
48
7
Reserved
Undefined
00
8
Voltage Interface Level of this Assembly
SSTL_1.8V
05
9
DDR2 SDRAM Device Cycle Time at CL=5
3.0ns
2.5ns
30
25
10
DDR2 SDRAM Device Access Time from Clock at CL=5
0.45ns
0.4ns
45
40
11
DIMM Configuration Type
ECC
02
12
Refresh Rate/Type
7.8s/self
82
13
Primary DDR2 SDRAM Width
X8
08
14
Error Checking DDR2 SDRAM Device Width
X8
08
15
Reserved
Undefined
00
16
DDR2 SDRAM Device Attributes: Burst Length Supported
4,8
0C
17
DDR2 SDRAM Device Attributes: Number of Device Banks
8
08
18
DDR2 SDRAM Device Attributes: CAS Latencies Supported
3,4,5
4,5,6
3,4,5
38
70
38
19
DIMM Mechanical Characteristics
x ≤ 4.10 (mm)
01
20
DDR2 SDRAM DIMM Type Information
UDIMM (133.5mm)
02
21
DDR2 SDRAM Module Attributes:
Normal DIMM
00
22
DDR2 SDRAM Device Attributes: General
Support weak driver,
50 ODT, and PASR
07
23
Minimum Clock Cycle at CL=4
3.75ns
3ns
3.75ns
3D
30
3D
24
Maximum Data Access Time from Clock at CL=4
0.5ns
0.45ns
0.5ns
50
45
50
25
Minimum Clock Cycle Time at CL=3
5.0ns
3.75ns
5.0ns
50
3D
50
26
Maximum Data Access Time from Clock at CL=3
0.6ns
0.5ns
0.6ns
60
50
60
27
Minimum Row Precharge Time (tRP)
15ns
12.5ns
3C
32
28
Minimum Row Active to Row Active delay (tRRD)
7.5ns
1E
29
Minimum RAS to CAS delay (tRCD)
15ns
12.5ns
3C
32
30
Minimum RAS Pulse Width (tRAS)
45ns
2D
31
Module Bank Density
1GB
01
32
Address and Command Setup Time Before Clock (tIS)
0.20ns
0.17ns
20
17
33
Address and Command Hold Time After Clock (tIH)
0.27ns
0.25ns
27
25
34
Data Input Setup Time Before Clock (tDS)
0.10ns
0.05ns
10
05
35
Data Input Hold Time After Clock (tDH)
0.17ns
0.12ns
17
12
36
Write Recovery Time (tWR)
15.0ns
3C
37
Internal Write to Read Command delay (tWTR)
7.5ns
1E
38
Internal Read to Precharge delay (tRTP)
7.5ns
1E
39
Reserved
Undefined
00
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 10
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Serial Presence Detect -- Part 2 of 2 (2GB)
256Mx72 2 RANKs UNBUFFERED DDR2 SDRAM DIMM based on 128Mx8, 8Banks, 8K Refresh, 1.8V DDR2 SDRAMs with SPD
Byte
Description
SPD Entry Value
Serial PD Data Entry
(Hexadecimal)
Note
667
-3C
800
-AD
800
-AC
667
-3C
800
-AD
800
-AC
40
Extension of Byte 41 tRC and Byte 42 tRFC
The number below a
decimal point of tRC and
tRFC are 0, tRFC is less
than 256ns.
06
36
41
Minimum Core Cycle Time (tRC)
60.0ns
57.5ns
3C
39
42
Min. Auto Refresh Command Cycle Time (tRFC)
127.5ns
7F
43
Maximum Clock Cycle Time (tCK)
8.0ns
80
44
Max. DQS-DQ Skew Factor (tQHS)
0.24ns
0.20ns
18
14
45
Read Data Hold Skew Factor (tQHS)
0.34ns
0.30ns
22
1E
46
PLL Relock Time
Undefined
00
46-61
Reserved
Undefined
00
62
SPD Revision
1.3
13
63
Checksum for bytes 0-62
Checksum Data
2A
F4
10
64-71
Manufacture’s JEDEC ID Code
NANYA
7F7F7F0B00000000
72
Module Manufacturing Location
Manufacturing Code
--
73-91
Module Part number
Module Part Number in
ASCII
--
1
92-255
Reserved
Undefined
--
Note 1:
NT2GT72U8PD0BY-3C 4E543247543732553850443042592D33432020
NT2GT72U8PD0BY-AD 4E543247543732553850443042592D41442020
NT2GT72U8PD0BY-AC 4E543247543732553850443042592D41432020
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 11
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Absolute Maximum Ratings
Symbol
Parameter
Rating
Units
VIN, VOUT
Voltage on any pin relative to Vss
-0.5 to 2.3
V
VDDQ
Voltage on VDDQ supply relative to Vss
-0.5 to 2.3
V
VDDQL
Voltage on VDDQL supply relative to Vss
-0.5 to 2.3
V
VDD
Voltage on VDD supply relative to Vss
-1.0 to +2.3
V
Note: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is
stress rating only, and functional operation of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
DC Operating Conditions
Symbol
Parameter
Rating
Units
Note
TCASE
Operating Temperature (Ambient)
0 to 95
°C
1,2,3
TSTG
Storage Temperature (Plastic)
-55 to 100
°C
IL
Short Circuit Output Current
-5 to 5
μA
Note:
1. Case temperature is measured at top and center side of any DRAMs.
2. tCASE > 85°C tREFI = 3.9 μs
3. All DRAM specification only support 0°C < tCASE < 85°C
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 12
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
DC Electrical Characteristics and Operating Conditions
(TCASE = 0 °C ~ 85 °C; VDDQ = 1.8V ± 0.1V; VDD = 1.8V ± 0.1V, See AC Characteristics)
Symbol
Parameter
Min
Max
Units
Notes
VDD
Supply Voltage
1.7
1.9
V
1
VDDQ
Supply Voltage for Output
1.7
1.9
V
1, 3
VDDL
Supply Voltage for VDDQL
1.7
1.9
V
3
VREF
I/O Reference Voltage
0.49VDDQ
0.51VDDQ
V
2,
VTT
Termination Voltage
VREF – 0.04
VREF + 0.04
V
4
VIH (DC)
Input High (Logic1) Voltage
VREF + 0.125
VDDQ + 0.3
V
VIL (DC)
Input Low (Logic0) Voltage
-0.3
VREF - 0.125
V
Note:
1. Inputs are not recognized as valid until VREF stabilizes.
2. VREF is expected to be equal to 0.5 V DDQ of the transmitting device, and to track variations in the DC level of the same.
Peak-to-peak noise on VREF may not exceed 2% of the DC value.
3. VDDQ tracks with VDD, VDDL tracks with VDD.
4. VTT of transmitting device track VREF of receiving device
Environmental Parameters
Symbol
Parameter
Rating
Units
Note
TOPR
Module Operating Temperature Range (ambient)
0 to 55
°C
3
HOPR
Operating Humidity (relative)
10 to 90
%
TSTG
Storage Temperature (Plastic)
-55 to 100
°C
1
HSTG
Storage Humidity (without condensation)
5 to 95
%
1
PBAR
Barometric Pressure (operating & storage)
105 to 69
K Pascal
1,2
Note: 1. Stresses greater than those listed may cause permanent damage to the device. This is a tress rating only, and device
functional operation at or above the conditions indicated is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect reliability.
2. Up to 9850 ft.
3. The component maximum case temperature shall not exceed the value specified in the component spec.
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 13
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Operating, Standby, and Refresh Currents
TCASE = 0 °C ~ 85 °C; VDDQ = VDD = 1.8V ± 0.1V (1GB, 1 Rank, 128Mx8 DDR2 SDRAMs)
Symbol
Parameter/Condition
PC2-5300
(-3C)
PC2-6400
(-AD)
PC2-6400
(-AC)
Unit
I DD0
Operating Current: one bank; active/precharge; tRC = tRC (MIN); tCK =
tCK (MIN); DQ, DM, and DQS inputs changing twice per clock cycle;
address and control inputs changing once per clock cycle
1034
1183
1183
mA
I DD1
Operating Current: one bank; active/read/precharge; Burst = 2; tRC =
tRC (MIN); CL=2.5; tCK = tCK (MIN); IOUT = 0mA; address and control
inputs changing once per clock cycle
935
1057
1057
mA
I DD2P
Precharge Power-Down Standby Current: all banks idle; power-down
mode; CKE VIL (MAX); tCK = tCK (MIN)
82
86
86
mA
I DD2N
Idle Standby Current: CS VIH (MIN); all banks idle; CKE VIH (MIN);
tCK = tCK (MIN); address and control inputs changing once per clock
cycle
658
746
746
mA
I DD2Q
Precharge Quiet Standby Current: All banks idle; is HIGH; CKE is
HIGH; tCK = tCK (MIN); Other control and address inputs are stable, Data
bus inputs are floating.
460
498
498
mA
I DD3PF
Active Power-Down Current: All banks open; tCK = tCK (MIN), CKE is
LOW; Other control and address inputs are STABLE, Data bus inputs
are floating. MRS A12 bit is set to low (Fast Power-down Exit).
324
338
338
mA
I DD3PS
Active Power-Down Current: All banks open; tCK = tCK (MIN), CKE is
LOW; Other control and address inputs are STABLE, Data bus inputs
are floating. MRS A12 bit is set to high (Slow Power-down Exit).
156
157
157
mA
I DD3N
Active Standby Current: one bank; active/precharge; CS VIH (MIN);
CKE VIH (MIN); tRC = tRAS (MAX); tCK = tCK (MIN); DQ, DM, and DQS
inputs changing twice per clock cycle; address and control inputs
changing once per clock cycle
590
680
680
mA
I DD4W
Operating Current: one bank; Burst = 2; writes; continuous burst;
address and control inputs changing once per clock cycle; DQ and
DQS inputs changing twice per clock cycle; CL=2.5; tCK = tCK (MIN)
1083
1184
1184
mA
I DD4R
Operating Current: one bank; Burst = 2; reads; continuous burst;
address and control inputs changing once per clock cycle; DQ and
DQS outputs changing twice per clock cycle; CL = 2.5; tCK = tCK (MIN);
IOUT = 0mA
1274
1411
1411
mA
I DD5
Auto-Refresh Current: tRC = tRFC (MIN)
2976
3069
3069
mA
I DD6
Self-Refresh Current: CKE 0.2V
93
93
93
mA
I DD7
Operating Current: four bank; four bank interleaving with BL = 4,
address and control inputs randomly changing; 50% of data changing
at every transfer; tRC = tRC (min); IOUT = 0mA.
2439
2844
2844
mA
Note: Module IDD was calculated from component IDD. It may differ from the actual measurement.
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 14
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Operating, Standby, and Refresh Currents
TCASE = 0 °C ~ 85 °C; VDDQ = VDD = 1.8V ± 0.1V (2GB, 2 Ranks, 128Mx8 DDR2 SDRAMs)
Symbol
Parameter/Condition
PC2-5300
(-3C)
PC2-6400
(-AD)
PC2-6400
(-AC)
Unit
I DD0
Operating Current: one bank; active/precharge; tRC = tRC (MIN); tCK =
tCK (MIN); DQ, DM, and DQS inputs changing twice per clock cycle;
address and control inputs changing once per clock cycle
1624
1836
1836
mA
I DD1
Operating Current: one bank; active/read/precharge; Burst = 2; tRC =
tRC (MIN); CL=2.5; tCK = tCK (MIN); IOUT = 0mA; address and control
inputs changing once per clock cycle
1525
1709
1709
mA
I DD2P
Precharge Power-Down Standby Current: all banks idle; power-down
mode; CKE VIL (MAX); tCK = tCK (MIN)
165
172
172
mA
I DD2N
Idle Standby Current: CS VIH (MIN); all banks idle; CKE VIH (MIN);
tCK = tCK (MIN); address and control inputs changing once per clock
cycle
1316
1491
1491
mA
I DD2Q
Precharge Quiet Standby Current: All banks idle; is HIGH; CKE is
HIGH; tCK = tCK (MIN); Other control and address inputs are stable, Data
bus inputs are floating.
921
997
997
mA
I DD3PF
Active Power-Down Current: All banks open; tCK = tCK (MIN), CKE is
LOW; Other control and address inputs are STABLE, Data bus inputs
are floating. MRS A12 bit is set to low (Fast Power-down Exit).
648
677
677
mA
I DD3PS
Active Power-Down Current: All banks open; tCK = tCK (MIN), CKE is
LOW; Other control and address inputs are STABLE, Data bus inputs
are floating. MRS A12 bit is set to high (Slow Power-down Exit).
311
313
313
mA
I DD3N
Active Standby Current: one bank; active/precharge; CS VIH (MIN);
CKE VIH (MIN); tRC = tRAS (MAX); tCK = tCK (MIN); DQ, DM, and DQS
inputs changing twice per clock cycle; address and control inputs
changing once per clock cycle
1179
1305
1305
mA
I DD4W
Operating Current: one bank; Burst = 2; writes; continuous burst;
address and control inputs changing once per clock cycle; DQ and
DQS inputs changing twice per clock cycle; CL=2.5; tCK = tCK (MIN)
1672
1837
1837
mA
I DD4R
Operating Current: one bank; Burst = 2; reads; continuous burst;
address and control inputs changing once per clock cycle; DQ and
DQS outputs changing twice per clock cycle; CL = 2.5; tCK = tCK (MIN);
IOUT = 0mA
1864
2064
2064
mA
I DD5
Auto-Refresh Current: tRC = tRFC (MIN)
3565
3722
3722
mA
I DD6
Self-Refresh Current: CKE 0.2V
186
187
187
mA
I DD7
Operating Current: four bank; four bank interleaving with BL = 4,
address and control inputs randomly changing; 50% of data changing
at every transfer; tRC = tRC (min); IOUT = 0mA.
3029
3497
3497
mA
Note: Module IDD was calculated from component IDD. It may differ from the actual measurement.
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 15
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
AC Timing Specifications for DDR2 SDRAM Devices Used on Module
(TCASE = 0 °C ~ 85 °C; VDDQ = 1.8V ± 0.1V; VDD = 1.8V ± 0.1V, See AC Characteristics) (Part 1 of 2)
Symbol
Parameter
PC2-5300
PC2-6400
Unit
Min.
Max.
Min.
Max.
tCK
Clock Cycle Time (Average)
3000
8000
2500
8000
ps
tCH
CK high-level width (Average)
0.48
0.52
0.48
0.52
tCK
tCL
CK low-level width (Average)
0.48
0.52
0.48
0.52
tCK
WL
Write command to DQS associated clock edge
RL-1
RL-1
nCK
tDQSS
Write command to 1st DQS latching transition
-0.25
0.25
-0.25
0.25
tCK
tDSS
DQS falling edge to CK setup time
(write cycle)
0.2
-
0.2
-
tCK
tDSH
DQS falling edge hold time from CK
(write cycle)
0.2
-
0.2
-
tCK
tDQSL,(H)
DQS input low (high) pulse width
(write cycle)
0.35
-
0.35
-
tCK
tWPRE
Write preamble
0.35
-
0.35
-
tCK
tWPST
Write postamble
0.4
0.6
0.4
0.6
tCK
tIS
Address and control input setup time
200
-
175
-
ps
tIH
Address and control input hold time
275
-
250
-
ps
tIPW
Input pulse width
0.6
-
0.6
-
tCK
tDS
DQ and DM input setup time(differential data
strobe)
100
-
50
-
ps
tDH
DQ and DM input hold time(differential data strobe)
175
-
125
-
ps
tDIPW
DQ and DM input pulse width (each input)
0.35
-
0.35
-
tCK
tAC
DQ output access time from CK/
-450
450
-400
400
ps
tDQSCK
DQS output access time from CK/
-400
400
-350
350
ps
tHZ
Data-out high-impedance time from CK/
-
tAC max
-
tACmax
ps
tLZ(DQS)
DQS low-impedance time from CK/
tAC min
tAC max
tACmin
tACmax
ps
tLZ(DQ)
DQ low-impedance time from CK/
2tAC min
tAC max
2tAC min
tAC max
ps
tDQSQ
DQS-DQ skew (DQS & associated DQ signals)
-
240
-
200
ps
tHP
Minimum half clk period for any given cycle;
defined by clk high (tCH) or clk low (tCL) time
Min(tCH(abs),tC
L(abs))
-
Min(tCH(abs),
tCL(abs))
-
ps
tQHS
Data hold Skew Factor
-
340
-
300
ps
tQH
Data output hold time from DQS
tHP - tQHS
-
tHP - tQHS
-
ps
tRPRE
Read preamble
0.9
1.1
0.9
1.1
tCK
tRPST
Read postamble
0.4
0.6
0.4
0.6
tCK
tRRD
Active bank A to Active bank B command
7.5
-
7.5
-
ns
tFAW
Four Activate Window for 1KB page size products
37.5
-
35
-
ns
tCCD
to
2
2
nCK
tWR
Write recovery time without Auto-Precharge
15
-
15
-
ns
tDAL
Auto precharge write recovery + precharge time
WR+tnRP
-
WR+tnRP
-
nCK
tWTR
Internal write to read command delay
7.5
-
7.5
-
ns
tRTP
Internal read to precharge command delay
7.5
7.5
ns
tCKE
CKE minimum pulse width
3
3
nCK
tXSNR
Exit self refresh to a Non-read command
tRFC+10
-
tRFC+10
ns
tXSRD
Exit self refresh to a Read command
200
-
200
nCK
tXP
Exit precharge power down to any Non- read
command
2
-
2
-
nCK
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 16
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
AC Timing Specifications for DDR2 SDRAM Devices Used on Module
(TCASE = 0 °C ~ 85 °C; VDDQ = 1.8V ± 0.1V; VDD = 1.8V ± 0.1V, See AC Characteristics) (Part 2 of 2)
Symbol
Parameter
PC2-5300
PC2-6400
Unit
Min.
Max.
Min.
Max.
tXARD
Exit active power down to read command
2
-
2
-
nCK
tXARDS
Exit active power down to read command
7-AL
8-AL
nCK
tAOND
ODT turn-on delay
2
2
2
2
nCK
tAON
ODT turn-on
tAC (min)
tAC (max)+0.7
tAC (min)
tAC (max)+0.7
ns
tAONPD
ODT turn-on (Power down mode)
tAC (min) +2
2tCK +
tAC(max) +1
tAC (min) +2
2tCK +
tAC(max) +1
ns
tAOFD
ODT turn-off delay
2.5
2.5
2.5
2.5
nCK
tAOF
ODT turn-off
tAC(min)
tAC(max) +0.6
tAC(min)
tAC(max) +0.6
ns
tAOFPD
ODT turn-off (Power down mode)
tAC (min)+2
2.5tCK +
tAC(max) +1
tAC (min)+2
2.5tCK +
tAC(max) +1
ns
tANPD
ODT to power down entry latency
3
-
3
-
nCK
tAXPD
ODT power down exit latency
8
8
nCK
tMRD
Mode register set command cycle time
2
-
2
-
nCK
tMOD
MRS command to ODT update delay
0
12
0
12
ns
tOIT
OCD drive mode output delay
0
12
0
12
ns
tDelay
Minimum time clocks remains ON after CKE
asynchronously drops Low
tIS + tCK + tIH
-
tIS + tCK + tIH
-
ns
tRFC
Refresh to active/Refresh command time
127.5
127.5
ns
tREFI
Average Periodic Refresh Interval
(85ºC < TCASE ≤ 95ºC)
3.9
3.9
μs
Average Periodic Refresh Interval
(0ºC ≤ TCASE ≤ 85ºC)
7.8
7.8
μs
Speed Grade Definition
Symbol
Parameter
-3C
-AD
-AC
Unit
Min
Max
Min
Max
Min
Max
tRAS
Row Active Time
45
70,000
45
70,000
45
70,000
ns
tRC
Row Cycle Time
60
-
60
-
57.5
-
ns
tRCD
RAS to CAS delay
15
-
15
-
12.5
-
ns
tRP
Row Precharge Time
15
-
15
-
12.5
-
ns
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 17
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Package Dimensions
(Raw Card Version: F, 1GB, 1 Rank, 128Mx8 DDR2 SDRAMs)
FRONT
1.50 +/- 0.1
Detail A
0.039
Detail B
0.8 +/- 0.5
BACK
0.059 +/- 0. 004
3.80
0.15
0.157
4.00
0.031 +/- 0.02
1. 00 Pitch
Detail A Detail B
0. 098
2.5
10.0
0.394
133.35
131.35
128. 95
5. 250
5. 171
5. 077
17.80
2.30
0.091
0.700
30.00
1.180
(2X) 4.00
0.157
Note: All dimensions are typical with tolerances of +/- 0.15 (0. 006) unless otherwise stated.
Units: Millimeters (Inches)
SIDE
3.18 Max
1.27 +/- 0.10
0.125
0.050 +/- 0. 004
2.50
0.10
5.00
0.20
55.00
2. 165
63. 00
2. 480
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 18
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Package Dimensions
(Raw Card Version: G, 2GB, 2 Ranks, 128Mx8 DDR2 SDRAMs)
FRONT
1. 50 +/- 0.1
Detail A
0.039
Detail B
0.8 +/- 0.5
BACK
0. 059 +/- 0. 004
3.80
0.15
0.157
4.00
0. 031 +/- 0.02
1.00 Pitch
Detail A Detail B
0. 098
2.5
10.0
0.394
133.35
131.35
128. 95
5. 250
5. 171
5. 077
17.80
2.30
0.091
0.700
30.00
1.180
(2X) 4.00
0.157
Note: All dimensions are typical with tolerances of +/- 0. 15 (0. 006) unless otherwise stated.
Units: Millimeters (Inches)
SIDE
4.00 Max
1.27 +/- 0.10
0.157
0.050 +/- 0. 004
2.50
0.10
5.00
0.20
55.00
2.165
63. 00
2. 480
NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
REV 1.0 19
03/2008
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Revision Log
Rev
Date
Modification
0.1
02/2008
Preliminary Edition
1.0
03/2008
Official Release
