SRAM
MT5C2564
Austin Semiconductor, Inc.
64K x 4 SRAM
SRAM MEMORY ARRAY
PIN ASSIGNMENT
(Top View)
AVAILABLE AS MILITARY
SPECIFICATIONS
• SMD 5962-88681
• SMD 5962-88545
• MIL-STD-883
24-Pin DIP (C)
(300 MIL)
28-Pin LCC (EC)
3
2 1 28 27
FEATURES
A0
A1
A2
A3
A4
A5
A6
A7
A8
1
2
3
4
5
6
7
8
9
24
23
22
21
20
19
18
17
16
15
14
13
Vcc
2 6
2 5
2 4
2 3
2 2
2 1
2 0
1 9
1 8
A15
A14
A13
A12
A11
A10
DQ4
DQ3
DQ2
A15
A14
A13
A12
A11
A10
DQ4
DQ3
DQ2
DQ1
WE\
A2
A3
A4
A5
A6
A7
A8 1 0
A9 1 1
CE\ 1 2
4
5
6
7
8
9
• High Speed: 15, 20, 25, 35, 45, 55, and 70
• Battery Backup: 2V data retention
• Low power standby
• 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
A9 10
CE\ 11
Vss 12
13 14 15 16 17
28-Pin Flat Pack (F)
OPTIONS
• Timing
MARKING
1
2 8
2 7
2 6
2 5
2 4
2 3
2 2
2 1
2 0
1 9
1 8
1 7
1 6
1 5
NC
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
CE\
NC
Vss
Vcc
2
A15
A14
A13
A12
A11
A10
NC
3
15ns access
20ns access
25ns access
35ns access
45ns access
55ns access
70ns access
-15
-20
-25
-35
-45
-55*
-70*
4
5
6
7
8
9
NC
1 0
1 1
1 2
1 3
1 4
DQ3
DQ2
DQ1
DQ0
WE\
• Package(s)
Ceramic DIP (300 mil)
CeramicLCC
Ceramic Flatpack
C
EC
F
No. 106
No. 204
GENERAL DESCRIPTION
• OperatingTemperature Ranges
Industrial (-40oC to +85oC)
Military (-55oC to +125oC)
The Austin Semiconductor SRAM family employs
high-speed, low-power CMOS and are fabricated using double-
layer metal, double-layer polysilicon technology.
IT
XT
For flexibility in high-speed memory applications,
Austin Semiconductor offers chip enable (CE\) on all
organizations. This enhancement can place the outputs in
High-Z for additional flexibility in system design. The x4
configuration features common data input and output.
Writing to these devices is accomplished when write
enable (WE\) and CE\ inputs are both LOW. Reading is
accomplished when WE\ remains HIGH and CE\ goes LOW.
The device offers a reduced power standby mode when
disabled. This allows system designs to achieve low standby
power requirements.
• 2V data retention/low power
L
*Electrical characteristics identical to those provided for the 45ns
access devices.
For more products and information
please visit our web site at
www.austinsemiconductor.com
These devices operate from a single +5V power
supply and all inputs and outputs are fully TTL compatible.
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
MT5C2564
Rev. 3.1 6/05
1