IC61LV2568
Document Title
256K x 8 Hight Speed SRAM with 3.3V
Revision History
Revision No |
History |
Draft Date |
Remark |
0A |
Initial Draft |
September 12,2001 |
The attached datasheets are provided by ICSI. Integrated Circuit Solution Inc reserve the right to change the specifications and products. ICSI will answer to your questions about device. If you have any questions, please contact the ICSI offices.
Integrated Circuit Solution, Inc. |
1 |
AHSR023-0A 09/12/2001
IC61LV2568
256K x 8 HIGH-SPEED CMOS STATIC RAM
FEATURES
•High-speed access times:
—8, 10, 12 and 15 ns
•High-preformance, lower-power CMOS process
•Multiple center power and ground pins for greater noise immunity
•Easy memory expansion with CE and OE options
•CE power-down
•CMOS power: 540 mW @ 10 ns 36 mW standby mode
•TTL compatible inputs and outputs
•Single 3.3V ± 10% power supply
•Packages available:
—36-pin 400mil SOJ
—44-pin TSOP-2
DESCRIPTION
The ICSI IC61LV2568 is a very high-speed, low power, 262,144-word by 8-bit COMS static RAM. The IC61LV2568 is fabricated using ICSI's high-performance CMOS technology. This highly reliable process coupled with innovative circuit design techniques, yields higher preformance and low power consumotion devices.
When CE is HIGH (deselected), the device assumes a standby mode at which the power dissipation can be reduced down to 36 mW (max.) with CMOS input levels.
The IC61LV2568 operates from a single 3.3V power supply and all inputs are TTL-compatible.
The IC61LV2568 is available in 36-pin, 400mil SOJ and 44-pin TSOP-2 package.
FUNCTIONAL BLOCK DIAGRAM
A0-A17 |
DECODER |
|
256K X 8 |
|
MEMORY ARRAY |
||
|
|
|
|
|
|
|
|
VCC
GND
I/O
I/O0-I/O7 DATA COLUMN I/O
CIRCUIT
CE
CONTROL
OE CIRCUIT
WE
ICSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. © Copyright 2000, Integrated Circuit Solution, Inc.
2 |
Integrated Circuit Solution, Inc. |
|
AHSR023-0A 09/12/2001 |
IC61LV2568
PIN CONFIGURATION |
|
|
|
|
PIN CONFIGURATION |
|
|
|
|
|
|||||||||||||
36-Pin SOJ |
|
|
|
|
|
|
|
|
44-Pin TSOP-2 |
|
|
|
|
|
|
||||||||
|
|
A4 |
|
1 |
36 |
|
NC |
|
|
NC |
|
|
1 |
44 |
|
NC |
|||||||
|
|
|
|
|
|
|
|
|
|||||||||||||||
|
|
A3 |
|
2 |
35 |
|
A5 |
|
|
NC |
|
|
2 |
43 |
|
NC |
|||||||
|
|
||||||||||||||||||||||
|
|
|
|
|
|
|
|||||||||||||||||
|
|
A2 |
|
34 |
|
A6 |
|
|
|
A4 |
|
|
3 |
42 |
|
NC |
|||||||
|
|
|
3 |
|
|
|
|
|
|
|
|||||||||||||
|
|
|
|
|
|
33 |
|
A7 |
|
|
|
A3 |
|
|
4 |
41 |
|
A5 |
|||||
|
|
A1 |
4 |
|
|
|
|
A2 |
|
|
5 |
40 |
|
A6 |
|||||||||
|
|
|
|
|
|
32 |
|
A8 |
|
|
|
|
|
|
|||||||||
|
|
A0 |
|
5 |
|
|
|
|
A1 |
|
|
6 |
39 |
|
A7 |
||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||
|
|
CE |
|
|
6 |
31 |
|
OE |
|
|
|
A0 |
|
|
7 |
38 |
|
A8 |
|||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
37 |
|
|
|
|
I/O0 |
|
7 |
30 |
|
I/O7 |
|
|
CE |
|
|
8 |
|
|
OE |
|
||||||||
|
|
|
|
|
|
29 |
|
I/O6 |
|
I/O0 |
|
|
9 |
36 |
|
I/O7 |
|||||||
I/O1 |
8 |
|
|
|
|
|
|||||||||||||||||
|
|
I/O1 |
|
|
10 |
35 |
|
I/O6 |
|||||||||||||||
Vcc |
|
9 |
28 |
|
GND |
|
|
|
|
|
|
|
|
34 |
|
GND |
|||||||
|
|
|
Vcc |
|
|
11 |
|
||||||||||||||||
|
|
|
|
||||||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
33 |
|
Vcc |
||||
GND |
|
10 |
27 |
|
Vcc |
|
GND |
|
|
12 |
|
||||||||||||
|
|
||||||||||||||||||||||
I/O2 |
|
11 |
26 |
|
I/O5 |
|
I/O2 |
|
|
13 |
32 |
|
I/O5 |
||||||||||
|
|
I/O3 |
|
|
14 |
31 |
|
I/O4 |
|||||||||||||||
I/O3 |
|
12 |
25 |
|
I/O4 |
|
|
|
|
|
|
|
30 |
|
A9 |
||||||||
|
|
|
WE |
|
|
15 |
|
||||||||||||||||
|
|
|
|
|
|
||||||||||||||||||
|
|
|
|
|
24 |
|
A9 |
|
|
|
|
|
|
|
|
||||||||
WE |
|
13 |
|
|
A17 |
|
|
16 |
29 |
|
A10 |
||||||||||||
|
|
||||||||||||||||||||||
|
|
|
|
|
|
23 |
|
A10 |
|
A16 |
|
|
17 |
28 |
|
A11 |
|||||||
A17 |
14 |
|
|
A15 |
|
|
18 |
27 |
|
A12 |
|||||||||||||
A16 |
|
15 |
22 |
|
A11 |
|
|
|
|
||||||||||||||
|
|
|
A14 |
|
|
19 |
26 |
|
NC |
||||||||||||||
A15 |
|
16 |
21 |
|
A12 |
|
A13 |
|
|
20 |
25 |
|
NC |
||||||||||
|
|
|
|
|
|
||||||||||||||||||
A14 |
|
17 |
20 |
|
NC |
|
|
NC |
|
|
21 |
24 |
|
NC |
|||||||||
|
|
|
|
|
|
|
|||||||||||||||||
|
|
|
|
||||||||||||||||||||
|
|
|
|
|
|
19 |
|
NC |
|
|
NC |
|
|
22 |
23 |
|
NC |
||||||
A13 |
18 |
|
|
|
|
|
|
||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
PIN DESCRIPTIONS
A0-A17 |
Address Inputs |
|
|
CE |
Chip Enable Input |
|
|
OE |
Output Enable Input |
|
|
WE |
Write Enable Input |
|
|
I/O0-I/O7 |
Input/Output |
|
|
Vcc |
Power |
|
|
GND |
Ground |
|
|
NC |
No Connection |
|
|
TRUTH TABLE
Mode |
WE |
CE |
OE |
I/O Operation |
Vcc Current |
Not Selected |
X |
H |
X |
High-Z |
ISB1, ISB2 |
(Power-down) |
|
|
|
|
|
Output Disabled |
H |
L |
H |
High-Z |
ICC |
|
|
|
|
|
|
Read |
H |
L |
L |
DOUT |
ICC |
|
|
|
|
|
|
Write |
L |
L |
X |
DIN |
ICC |
|
|
|
|
|
|
ABSOLUTE MAXIMUM RATINGS(1)
Symbol |
Parameter |
|
Value |
Unit |
VCC |
Power Supply Voltage Relative to GND |
|
–0.5 to +4.6 |
V |
|
|
|
|
|
VTERM |
Terminal Voltage with Respect to GND |
|
–0.5 to Vcc + 0.5 |
V |
|
|
|
|
|
TBIAS |
Temperature Under Bias |
Com. |
–10 to +85 |
°C |
|
|
Ind. |
–45 to +90 |
|
|
|
|
|
|
TSTG |
Storage Temperature |
|
–65 to +150 |
°C |
|
|
|
|
|
PD |
Power Dissipation |
|
1 |
W |
|
|
|
|
|
IOUT |
DC Output Current |
|
±20 |
mA |
|
|
|
|
|
Notes:
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 operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Integrated Circuit Solution, Inc. |
3 |
AHSR023-0A 09/12/2001