IS61LV12816L
IS61LV12816LL
ISSI®
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
1
Rev. B
05/28/03
Copyright © 2003 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability
arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any
published information and before placing orders for products.
FEATURES
• High-speed access time:
IS61LV12816L: 8, 10 ns
IS61LV12816LL: 12 ns
• Operating Current:
IS61LV12816L: 50mA (typ.)
IS61LV12816LL: 30mA (typ.)
• Stand by Current:
IS61LV12816L: 700µA (typ.)
IS61LV12816LL: 400µA(typ.)
• TTL and CMOS compatible interface levels
• Single 3.3V power supply
• Fully static operation: no clock or refresh
required
• Three state outputs
• Data control for upper and lower bytes
• Industrial temperature available
128K x 16 HIGH-SPEED CMOS STATIC RAM
WITH 3.3V SUPPLY
DESCRIPTION
The ISSI IS61LV12816L/IS61LV12816LL is a high-speed,
2,097,152-bit static RAM organized as 131,072 words by
16 bits. It is fabricated using ISSI's high-performance
CMOS technology. This highly reliable process coupled
with innovative circuit design techniques, yields access
times as fast as 8 ns with low power consumption.
When CE is HIGH (deselected), the device assumes a
standby mode at which the power dissipation can be
reduced down with CMOS input levels.
Easy memory expansion is provided by using Chip Enable
and Output Enable inputs, CE and OE. The active LOW
Write Enable (WE) controls both writing and reading of the
memory. A data byte allows Upper Byte (UB) and Lower
Byte (LB) access.
The IS61LV12816L/IS61LV12816LL is packaged in the
JEDEC standard 44-pin TSOP (Type II), 44-pin LQFP, and
48-pin mini BGA (6mm x 8mm).
FUNCTIONAL BLOCK DIAGRAM
JUNE 2003
A0-A16
CE
OE
WE
128Kx16
MEMORY ARRAY
DECODER
COLUMN I/O
CONTROL
CIRCUIT
GND
VDD
I/O
DATA
CIRCUIT
I/O0-I/O7
Lower Byte
I/O8-I/O15
Upper Byte
UB
LB
IS61LV12816L, IS61LV12816LL
2
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. B
05/28/03
ISSI
®
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A4
A3
A2
A1
A0
CE
I/O0
I/O1
I/O2
I/O3
V
DD
GND
I/O4
I/O5
I/O6
I/O7
WE
A16
A15
A14
A13
A12
A5
A6
A7
OE
UB
LB
I/O15
I/O14
I/O13
I/O12
GND
V
DD
I/O11
I/O10
I/O9
I/O8
NC
A8
A9
A10
A11
NC
44-Pin TSOP (Type II) (T) PIN DESCRIPTIONS
A0-A16 Address Inputs
I/O0-I/O15 Data Inputs/Outputs
CE Chip Enable Input
OE Output Enable Input
WE Write Enable Input
LB Lower-byte Control (I/O0-I/O7)
UB Upper-byte Control (I/O8-I/O15)
NC No Connection
VDD Power
GND Ground
TRUTH TABLE
I/O PIN
Mode WEWE
WEWE
WE CECE
CECE
CE OEOE
OEOE
OE LBLB
LBLB
LB UBUB
UBUB
UB I/O0-I/O7 I/O8-I/O15 VDD Current
Not Selected X H X X X High-Z High-Z ISB1, ISB2
Output Disabled H L H X X High-Z High-Z ICC
X L X H H High-Z High-Z
Read H L L L H DOUT High-Z ICC
H L L H L High-Z DOUT
HLLLL DOUT DOUT
Write L L X L H DIN High-Z ICC
L L X H L High-Z DIN
LLXLL DIN DIN
PIN CONFIGURATION
IS61LV12816L, IS61LV12816LL
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
3
Rev. B
05/28/03
ISSI
®
PIN DESCRIPTIONS
A0-A16 Address Inputs
I/O0-I/O15 Data Inputs/Outputs
CE Chip Enable Input
OE Output Enable Input
WE Write Enable Input
LB Lower-byte Control (I/O0-I/O7)
UB Upper-byte Control (I/O8-I/O15)
NC No Connection
VDD Power
GND Ground
48-Pin mini BGA (B) 44-Pin LQFP (LQ)
1
2
3
4
5
6
7
8
9
10
11
33
32
31
30
29
28
27
26
25
24
23
12 13 14 15 16 17 18 19 20 21 22
44 43 42 41 40 39 38 37 36 35 345
CE
I/O0
I/O1
I/O2
I/O3
V
DD
GND
I/O4
I/O5
I/O6
I/O7
I/O15
I/O14
I/O13
I/O12
GND
V
DD
I/O11
I/O10
I/O9
I/O8
NC
TOP VIEW
WE
A0
A1
A2
A3
A4
NC
A5
A6
A7
A8
A16
A15
A14
A13
A12
A11
A10
A9
OE
UB
LB
PIN CONFIGURATION
1 2 3 4 5 6
A
B
C
D
E
F
G
H
LB OE A0 A1 A2 NC
I/O
8
UB A3 A4 CE I/O
0
I/O
9
I/O
10
A5 A6 I/O
1
I/O
2
GND I/O
11
NC A7 I/O
3
V
DD
V
DD
I/O
12
NC A16 I/O
4
GND
I/O
14
I/O
13
A14 A15 I/O
5
I/O
6
I/O
15
NC A12 A13 WE I/O
7
NC A8 A9 A10 A11 NC
IS61LV12816L, IS61LV12816LL
4
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. B
05/28/03
ISSI
®
OPERATING RANGE
Range Ambient Temperature VDD (8 nS)VDD (10 nS, 12 nS)
Commercial 0°C to +70°C 3.3V + 10%, -5% 3.3V + 10%
Industrial –40°C to +85°C 3.3V + 10%, -5% 3.3V + 10%
DC ELECTRICAL CHARACTERISTICS (Over Operating Range)
Symbol Parameter Test Conditions Min. Max. Unit
VOH Output HIGH Voltage VDD = Min., IOH = –4.0 mA 2.4 — V
VOL Output LOW Voltage VDD = Min., IOL = 8.0 mA — 0.4 V
VIH Input HIGH Voltage(1) 2VDD + 0.3 V
VIL Input LOW Voltage(1) –0.3 0.8 V
ILI Input Leakage GND ≤ VIN ≤ VDD –1 1 µA
ILO Output Leakage GND ≤ VOUT ≤ VDD, Outputs Disabled – 1 1 µA
Note:
1. VIL (min.) = –0.3V DC; VIL (min.) = –2.0V AC (pulse width - 2.0 ns). Not 100% tested.
VIH (max.) = VDD + 0.3V DC; V IH (max.) = VDD + 2.0V AC (pulse width - 2.0 ns). Not 100% tested.
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Parameter Value Unit
VDD Power Supply Voltage Relative to GND –0.5 to 4.0V V
VTERM Terminal Voltage with Respect to GND –0.5 to VDD + 0.5 V
TSTG Storage Temperature –65 to + 150 °C
PTPower Dissipation 1.0 W
Note:
1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at these or any other conditions above those indicated in the opera-
tional sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may
affect reliability.
IS61LV12816L, IS61LV12816LL
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
5
Rev. B
05/28/03
ISSI
®
POWER SUPPLY CHARACTERISTICS(1) (Over Operating Range)
IS61LV12816L
-8 ns -10 ns
Symbol Parameter Test Conditions Min. Max. Min. Max. Unit
ICC VDD Operating VDD = Max., CE = VIL Com. — 65 — 60 mA
Supply Current IOUT = 0 mA, f = Max. Ind. — 70 — 65
typ.
(2)
—50 —50
ISB1TTL Standby VDD = Max., Com. — 30 — 25 mA
Current VIN = VIH or VIL Ind. — 35 — 30
(TTL Inputs) CE ≥ VIH, f = max
ISB2CMOS Standby VDD = Max., Com. — 3 — 3 mA
Current CE ≥ VDD – 0.2V, Ind. — 4 — 4 mA
(CMOS Inputs) VIN ≥ VDD – 0.2V, or typ.
(2)
— 700 — 700 µA
VIN ≤ 0.2V
, f = 0
Note:
1. At f = fMAX, address and data inputs are cycling at the maximum frequency, f = 0 means no input lines change.
2. Typical values are measured at VDD=3.3V, TA=25oC. Not 100% tested.
POWER SUPPLY CHARACTERISTICS(1) (Over Operating Range)
IS61LV12816LL
-12 ns
Symbol Parameter Test Conditions Min. Max. Unit
ICC VDD Operating VDD = Max., CE = VIL Com. — 40 mA
Supply Current IOUT = 0 mA, f = Max. Ind. — 45
typ.
(2)
—30
@ 15ns
(3)
—25
ISB1TTL Standby VDD = Max., Com. — 20 mA
Current VIN = VIH or VIL Ind. — 20
(TTL Inputs) CE ≥ VIH, f = max
ISB2CMOS Standby VDD = Max., Com. — 750 µA
Current CE ≥ VDD – 0.2V, Ind. — 900 µA
(CMOS Inputs) VIN ≥ VDD – 0.2V, or typ.
(2)
— 400 µA
VIN ≤ 0.2V
, f = 0
Note:
1. At f = fMAX, address and data inputs are cycling at the maximum frequency, f = 0 means no input lines change.
2. Typical values are measured at VDD=3.3V, TA=250C. Not 100% tested.
3. For 15ns speed (tAA), Icc is measured at VDD=3.3V, TA=250C. Not 100% tested.
CAPACITANCE(1)
Symbol Parameter Conditions Max. Unit
CIN Input Capacitance VIN = 0V 6 pF
COUT Input/Output Capacitance VOUT = 0V 8 p F
Note:
1. Tested initially and after any design or process changes that may affect these parameters.
IS61LV12816L, IS61LV12816LL
6
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. B
05/28/03
ISSI
®
AC TEST CONDITIONS
Parameter Unit
Input Pulse Level 0V to 3.0V
Input Rise and Fall Times 3 ns
Input and Output Timing 1.5V
and Reference Level
Output Load See Figures 1 and 2
AC TEST LOADS
Figure 1.
319 Ω
5 pF
Including
jig and
scope
353 Ω
OUTPUT
3.3V
Figure 2.
READ CYCLE SWITCHING CHARACTERISTICS(1) (Over Operating Range)
IS61LV12816L IS61LV12816LL
-8 ns -10 ns -12 ns
Symbol Parameter Min. Max Min. Max. Min. Max. Unit
tRC Read Cycle Time 8 — 10 — 12 — ns
tAA Address Access Time — 8 — 10 — 12 ns
tOHA Output Hold Time 3 — 3 — 3 — n s
tACE CE Access Time — 8 — 10 — 12 ns
tDOE OE Access Time — 3.5 — 4 — 5 ns
tHZOE
(2)
OE to High-Z Output — 3.5 — 4 — 5 n s
tLZOE
(2)
OE to Low-Z Output 0 — 0 — 0 — ns
tHZCE
(2)
CE to High-Z Output 0 3.5 0 4 0 5 n s
tLZCE
(2)
CE to Low-Z Output 3.5 — 3 — 3 — n s
tBA LB, UB Access Time — 3.5 — 4 — 5 n s
tHZB
(2)
LB, UB to High-Z Output 0 3.5 0 4 0 5 n s
tLZB
(2)
LB, UB to Low-Z Output 0 — 0 — 0 — n s
Notes:
1. Test conditions assume signal transition times of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0V to
3.0V and output loading specified in Figure 1.
2. Tested with the load in Figure 2. Transition is measured ±500 mV from steady-state voltage. Not 100% tested.
ZO = 50Ω 1.5V
50Ω
OUTPUT
30 pF
Including
jig and
scope
IS61LV12816L, IS61LV12816LL
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
7
Rev. B
05/28/03
ISSI
®
DATA VALID
READ1.eps
PREVIOUS DATA VALID
t
AA
t
OHA
t
OHA
t
RC
DOUT
ADDRESS
t
RC
t
OHA
t
AA
t
DOE
t
LZOE
t
ACE
t
LZCE
t
HZOE
HIGH-Z DATA VALID
UB_CEDR2.eps
t
HZB
ADDRESS
OE
CE
LB, UB
DOUT
t
HZCE
t
BA
t
LZB
READ CYCLE NO. 2(1,3)
AC WAVEFORMS
READ CYCLE NO. 1(1,2) (Address Controlled) (CE = OE = VIL, UB or LB = VIL)
Notes:
1. WE is HIGH for a Read Cycle.
2. The device is continuously selected. OE, CE, UB, or LB = VIL.
3. Address is valid prior to or coincident with CE LOW transition.
IS61LV12816L, IS61LV12816LL
8
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. B
05/28/03
ISSI
®
WRITE CYCLE SWITCHING CHARACTERISTICS(1,3) (Over Operating Range)
IS61LV12816L IS61LV12816LL
-8 ns -10 ns -12 ns
Symbol Parameter Min. Max Min. Max. Min. Max. Unit
tWC Write Cycle Time 8 — 10 — 12 — n s
tSCE CE to Write End 7 — 8 — 8 — ns
tAW Address Setup Time 7 — 8 — 8 — ns
to Write End
tHA Address Hold from Write End 0 — 0 — 0 — n s
tSA Address Setup Time 0 — 0 — 0 — ns
tPBW LB, UB Valid to End of Write 6.5 — 8 — 9 — ns
tPWE1WE Pulse Width (OE = HIGH) 6 — 7 — 8 — n s
tPWE2WE Pulse Width (OE = LOW) 6 .5 — 8 — 10 — n s
tSD Data Setup to Write End 4 — 5 — 6 — ns
tHD Data Hold from Write End 0 — 0 — 0 — ns
tHZWE
(3)
WE LOW to High-Z Output — 3 — 4 — 5 n s
tLZWE
(3)
WE HIGH to Low-Z Output 0 — 0 — 0 — n s
Notes:
1. Test conditions assume signal transition times of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0V to
3.0V and output loading specified in Figure 1.
2. The internal write time is defined by the overlap of CE LOW and UB or LB, and WE LOW. All signals must be in valid states
to initiate a Write, but any one can go inactive to terminate the Write. The Data Input Setup and Hold timing are referenced
to the rising or falling edge of the signal that terminates the write.
3. Tested with the load in Figure 2. Transition is measured ±500 mV from steady-state voltage. Not 100% tested.
IS61LV12816L, IS61LV12816LL
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
9
Rev. B
05/28/03
ISSI
®
WRITE CYCLE NO. 1(1,2) (CE Controlled, OE = HIGH or LOW)
DATA UNDEFINED
t
WC
VALID ADDRESS
t
SCE
t
PWE1
t
PWE2
t
AW
t
HA
HIGH-Z
t
PBW
t
HD
t
SA
t
HZWE
ADDRESS
CE
UB, LB
WE
D
OUT
D
IN DATAIN VALID
t
LZWE
t
SD
UB_CEWR1.eps
IS61LV12816L, IS61LV12816LL
10
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. B
05/28/03
ISSI
®
WRITE CYCLE NO. 2(1)
(WE Controlled, OE = HIGH during Write Cycle)
WRITE CYCLE NO. 3 (WE Controlled: OE is LOW During Write Cycle)
DATA UNDEFINED
LOW
t
WC
VALID ADDRESS
t
PWE1
t
AW
t
HA
HIGH-Z
t
PBW
t
HD
t
SA
t
HZWE
ADDRESS
CE
UB, LB
WE
D
OUT
D
IN
OE
DATA
IN
VALID
t
LZWE
t
SD
UB_CEWR2.eps
DATA UNDEFINED
t
WC
VALID ADDRESS
LOW
LOW
t
PWE2
t
AW
t
HA
HIGH-Z
t
PBW
t
HD
t
SA
t
HZWE
ADDRESS
CE
UB, LB
WE
DOUT
DIN
OE
DATAIN VALID
t
LZWE
t
SD
UB_CEWR3.eps
IS61LV12816L, IS61LV12816LL
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
11
Rev. B
05/28/03
ISSI
®
DATA UNDEFINED
t
WC
ADDRESS 1 ADDRESS 2
t
WC
HIGH-Z
t
PBW
WORD 1
LOW
WORD 2
UB_CEWR4.eps
t
HD
t
SA
t
HZWE
ADDRESS
CE
UB, LB
WE
D
OUT
D
IN
OE
DATA
IN
VALID
t
LZWE
t
SD
t
PBW
DATA
IN
VALID
t
SD
t
HD
t
SA
t
HA
t
HA
WRITE CYCLE NO. 4
(LB, UB Controlled, Back-to-Back Write)
(1,3)
Notes:
1. The internal Write time is defined by the overlap of CE = LOW, UB and/or LB = LOW, and WE = LOW. All signals must be
in valid states to initiate a Write, but any can be deasserted to terminate the Write. The tSA, tHA, tSD, and tHD timing is
referenced to the rising or falling edge of the signal that terminates the Write.
2. Tested with OE HIGH for a minimum of 4 ns before WE = LOW to place the I/O in a HIGH-Z state.
3. WE may be held LOW across many address cycles and the LB, UB pins can be used to control the Write function.
IS61LV12816L, IS61LV12816LL
12
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. B
05/28/03
ISSI
®
DATA RETENTION WAVEFORM (CE Controlled)
DATA RETENTION SWITCHING CHARACTERISTICS
Symbol Parameter Test Condition Options Min. Typ.
(1)
Max. Unit
VDR VDD for Data Retention See Data Retention Waveform 2.0 — 3.6 V
IDR Data Retention Current VDD = 2.0V, CE ≥ VDD – 0.2V Com. (L) — 0.7 3 mA
Ind. (L) — — 4
Com. (LL) — 0.4 0.75 mA
Ind. (LL) — — 0.9
tSDR Data Retention Setup Time See Data Retention Waveform 0 — — n s
tRDR Recovery Time See Data Retention Waveform tRC ——ns
Note 1: Typical values are measured at V
DD
= 3.3V, T
A
= 25
O
C. Not 100% tested.
V
DD
CE ≥ VDD
- 0.2V
tSDR tRDR
VDR
CE
GND
Data Retention Mode
IS61LV12816L, IS61LV12816LL
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
13
Rev. B
05/28/03
ISSI
®
ORDERING INFORMATION: IS61LV12816L
Commercial Range: 0°C to +70°C
Speed (ns) Order Part No. Package
8 IS61LV12816L-8B mini BGA (6mm x 8mm)
IS61LV12816L-8LQ LQFP
IS61LV12816L-8T Plastic TSOP (Type II)
10 IS61LV12816L-10LQ LQFP
IS61LV12816L-10T Plastic TSOP (Type II)
ORDERING INFORMATION: IS61LV12816L
Industrial Range: –40°C to +85°C
Speed (ns) Order Part No. Package
8 IS61LV12816L-8BI mini BGA (6mm x 8mm)
IS61LV12816L-8LQI LQFP
IS61LV12816L-8TI Plastic TSOP (Type II)
10 IS61LV12816L-10BI mini BGA (6mm x 8mm)
IS61LV12816L-10LQI LQFP
IS61LV12816L-10TI Plastic TSOP (Type II)
ORDERING INFORMATION: IS61LV12816LL
Commercial Range: 0°C to +70°C
Speed (ns) Order Part No. Package
12 IS61LV12816LL-12T Plastic TSOP (Type II)
ORDERING INFORMATION: IS61LV12816LL
Industrial Range: –40°C to +85°C
Speed (ns) Order Part No. Package
12 IS61LV12816LL-12BI mini BGA (6mm x 8mm)
IS61LV12816LL-12LQI LQFP
IS61LV12816LL-12TI Plastic TSOP (Type II)
PACKAGING INFORMATION ISSI®
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. D
01/15/03
Copyright © 2003 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to
obtain the latest version of this device specification before relying on any published information and before placing orders for products.
Mini Ball Grid Array
Package Code: B (48-pin)
Notes:
1. Controlling dimensions are in millimeters.
mBGA - 6mm x 8mm
MILLIMETERS INCHES
Sym. Min. Typ. Max. Min. Typ. Max.
N0.
Leads 48
A — — 1.20 — — 0.047
A1 0.24 — 0.30 0.009 — 0.012
A2 0.60 — — 0.024 — —
D 7.90 — 8.10 0.311 — 0.319
D1 5.25 BSC 0.207 BSC
E 5.90 — 6.10 0.232 — 0.240
E1 3.75 BSC 0.148 BSC
e 0.75 BSC 0.030 BSC
b 0.30 0.35 0.40 0.012 0.014 0.016
mBGA - 8mm x 10mm
MILLIMETER INCHES
Sym. Min. Typ. Max. Min. Typ. Max.
N0.
Leads 48
A — — 1.20 — — 0.047
A1 0.24 — 0.30 0.009 — 0.012
A2 0.60 — — 0.024 — —
D 9.90 — 10.10 0.390 — 0.398
D1 5.25 BSC 0.207 BSC
E 7.90 — 8.10 0.311 — 0.319
E1 3.75 BSC 0.148 BSC
e 0.75 BSC 0.030 BSC
b 0.30 0.35 0.40 0.012 0.014 0.016
SEATING PLANE
A
A1
A2
A
B
C
D
E
F
G
H
e
e
D1
E1E
D
φ b (48x)
Top View Bottom View
6 5 4 3 2 11 2 3 4 5 6
A
B
C
D
E
F
G
H
PACKAGING INFORMATION ISSI
®
Copyright © 2003 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to
obtain the latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. B
05/30/03
LQFP (Low Profile Quad Flat Pack)
Package Code: LQ (44-pin)
Low Profile Quad Flat Pack (LQ)
Ref. Std.
MS-026
No. Leads
44
Millimeters Inches
Symbol Min Max Min Max
A — 1.60 — 0.063
A1 0.05 0.15 0.002 0.006
A2 1.35 1.45 0.053 0.057
b 0.30 0.45 0.012 0.018
C 0.09 0.20 0.004 0.008
D 12.00 BSC 0.472 BSC
D 1 10.00 BSC 0.394 BSC
E 12.00 BSC 0.472 BSC
E1 10.00 BSC 0.394 BSC
e 0.80 BSC 0.031 BSC
L 0.45 0.75 0.018 0.030
L1 1.00 REF. 0.039 REF.
θ0
o
7
o
0
o
7
o
Notes:
1. All dimensioning and tolerancing
conforms to ANSI Y14.5M-1982.
2. Dimensions D1 and E1 do not include
mold protrusions. Allowable protrusion is
0.25 mm per side. D1 and E1 include
mold mismatch.
3. Controlling dimension: millimeters.
D
D1
EE1
A2
A1A
e
bSEATING
PLANE
θL1
L
PACKAGING INFORMATION ISSI®
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. F
06/18/03
Copyright © 2003 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to
obtain the latest version of this device specification before relying on any published information and before placing orders for products.
Plastic TSOP
Package Code: T (Type II)
D
SEATING PLANE
b
eC
1N/2
N/2+1N
E1
A1
A
E
Lα
ZD
.
Notes:
1. Controlling dimension: millimieters,
unless otherwise specified.
2. BSC = Basic lead spacing
between centers.
3. Dimensions D and E1 do not
include mold flash protrusions and
should be measured from the
bottom of the package.
4. Formed leads shall be planar with
respect to one another within
0.004 inches at the seating plane.
Plastic TSOP (T - Type II)
Millimeters Inches Millimeters Inches Millimeters Inches
Symbol Min Max Min Max Min Max Min Max Min Max Min Max
Ref. Std.
No. Leads (N) 32 44 50
A — 1.20 — 0.047 — 1.20 — 0.047 — 1.20 — 0.047
A1 0.05 0.15 0.002 0.006 0.05 0.15 0.002 0.006 0.05 0.15 0.002 0.006
b 0.30 0.52 0.012 0.020 0.30 0.45 0.012 0.018 0.30 0.45 0.012 0.018
C 0.12 0.21 0.005 0.008 0.12 0.21 0.005 0.008 0.12 0.21 0.005 0.008
D 20.82 21.08 0.820 0.830 18.31 18.52 0.721 0.729 20.82 21.08 0.820 0.830
E1 10.03 10.29 0.391 0.400 10.03 10.29 0.395 0.405 10.03 10.29 0.395 0.405
E 11.56 11.96 0.451 0.466 11.56 11.96 0.455 0.471 11.56 11.96 0.455 0.471
e 1.27 BSC 0.050 BSC 0.80 BSC 0.032 BSC 0.80 BSC 0.031 BSC
L 0.40 0.60 0.016 0.024 0.41 0.60 0.016 0.024 0.40 0.60 0.016 0.024
ZD 0.95 REF 0.037 REF 0.81 REF 0.032 REF 0.88 REF 0.035 REF
α0° 5° 0° 5° 0° 5° 0° 5° 0° 5° 0° 5°
