SRAM
Austin Semiconductor, Inc.
32K x 8 SRAM
SRAM MEMORY ARRAY
FEATURES
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•
•
•
•
•
•
•
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Access Times: 12, 15, & 20ns
Fast output enable (tDOE) for cache applications
Low active power: 400 mW (TYP)
Low power standby
Fully static operation, no clock or refresh required
High-performance, low-power CMOS double-metal process
Single +5V (+10%) Power Supply
Easy memory expansion with CE\
All inputs and outputs are TTL compatible
AS5C2568
PIN ASSIGNMENT
(Top View)
28-PIN PSOJ (DJ)
OPTIONS
•
Timing
12ns access*
15ns access
20ns access
•
Package(s)**
Plastic SOJ
MARKING
-12
-15
-20
DJ
XT
IT
No. 906
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 V
CC
27 WE\
26 A13
25 A8
24 A9
23 A11
22 OE\
21 A10
20 CE\
19 I/O7
18 I/O6
17 I/O5
16 I/O4
15 I/O3
•
Operating Temperature Ranges
Military -55
o
C to +125
o
C
Industrial -40
o
C to +85
o
C
*
-12 available in IT only.
**
For ceramic version of this product, see the MT5C2568
data sheet.
GENERAL DESCRIPTION
The Austin Semiconductor SRAM family employs
high-speed, low power CMOS designs using a four-transistor
memory cell. These SRAMs are fabricated using double-layer
metal, double-layer polysilicon technology.
For flexibility in high-speed memory applications, Aus-
tin Semiconductor offers chip enable (CE\) and output enable
(OE\) capability. These enhancements can place the outputs in
High-Z for additional flexibility in system design.
Writing to these devices is accomplished when write
enable (WE\) and CE\ inputs are both LOW. Reading is accom-
plished when WE\ remains HIGH and CE\ and OE\ go LOW.
The device offers a reduced power standby mode when dis-
abled. This allows system designs to achieve low standby
power requirements.
All devices operate from a single +5V power supply
and all inputs and outputs are fully TTL compatible.
For more products and information
please visit our web site at
www.austinsemiconductor.com
AS5C2568
Rev. 2.6 06/05
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
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AUSTIN [ AUSTIN SEMICONDUCTOR ]
