IS61C1024AL
IS64C1024AL
128K x 8 HIGH-SPEED CMOS STATIC RAM
FEATURES
• High-speed access time: 12, 15 ns
• Low active power: 160 mW (typical)
• Low standby power: 1000 µW (typical) CMOS
standby
• Output Enable (OE) and two Chip Enable
(CE1 and CE2) inputs for ease in applications
• Fully static operation: no clock or refresh
required
• TTL compatible inputs and outputs
• Single 5V (±10%) power supply
• Commercial, industrial, and automotive temperature ranges available
• Lead free available
JULY 2015
DESCRIPTION
The ISSI IS61C1024AL/IS64C1024AL is a very high-
speed, low power, 131,072-word by 8-bit CMOS static
RAMs. They are fabricated using ISSI's high-performance
CMOS technology. This highly reliable process coupled
with innovative circuit design techniques, yields higher
performance and low power consumption devices.
When CE1 is HIGH or CE2 is LOW (deselected), the device
assumes a standby mode at which the power dissipation
can be reduced by using CMOS input levels.
Easy memory expansion is provided by using two Chip
Enable inputs, CE1 and CE2.The active LOW Write Enable
(WE) controls both writing and reading of the memory.
The IS61C1024AL/IS64C1024AL is available in 32-pin
300-mil SOJ, 32-pin 400-mil SOJ, 32-pin TSOP (Type I,
8x20), and 32-pin sTSOP (Type I, 8 x 13.4) packages.
FUNCTIONAL BLOCK DIAGRAM
DECODER
128K x 8
MEMORY ARRAY
I/O
DATA
CIRCUIT
A0-A16
COLUMN I/O
VDD
GND
I/O0-I/O7
CE1
CE2
OE
WE
CONTROL
CIRCUIT
Copyright © 2015 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. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications
unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774 1
Rev. E
07/01/2015
