MT5C2561 Datasheet, PDF (1/11 Pages) Austin Semiconductor – MT5C2561 SRAM MEMORY ARRAY

Austin Semiconductor, Inc.
SRAM
MT5C2561
256K x 1 SRAM
SRAM MEMORY ARRAY
AVAILABLE AS MILITARY
SPECIFICATIONS
• SMD 5962-88725
• SMD 5962-88544
• MIL-STD-883
FEATURES
• High Speed: 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
OPTIONS
• Timing
35ns access
45ns access
55ns access
70ns access
MARKING
-35
-45
-55*
-70*
• Package(s)
Ceramic DIP (300 mil)
Ceramic LCC
C
No. 106
EC No. 204
PIN ASSIGNMENT
(Top View)
24-Pin DIP (C)
(300 MIL)
A6 1
A7 2
A8 3
A9 4
A10 5
A11 6
A14 7
A15 8
A0 9
Q 10
WE\ 11
Vss 12
24 Vcc
23 A5
22 A4
21 A3
20 _A2
19 _A1
18 _A17
17 _A16
16 _A13
15 _A12
14 _D
13 _CE\
28-Pin LCC (EC)
NC 4
A9 5
A10 6
A11 7
A14 8
A15 9
A0 10
Q 11
NC 12
3 2 1 28 27
26 NC
25 A4
24 A3
23 A2
22 A1
21 A17
20 A16
19 A13
18 NC
13 14 15 16 17
• Operating Temperature Ranges
Industrial (-40^oC to +85^oC)
IT
Military (-55^oC to +125^oC)
XT
• 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
GENERAL DESCRIPTION
The Austin Semiconductor SRAM family employs
high-speed, low-power CMOS and are fabricated using double-
layer metal, double-layer polysilicon technology.
For flexibility in high-speed memory applications,
Austin Semiconductor offers chip enable (CE\) on all organiza-
tions. This enhancement can place the outputs in High-Z for
additional flexibility in system design. The x1 configuration
features separate data input and output.
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\ goes LOW. The
device offers a reduced power standby mode when disabled.
This allows system designs to achieve low standby power re-
quirements.
These devices operate from a single +5V power sup-
ply and all inputs and outputs are fully TTL compatible.
MT5C2561
Rev. 2.5 1/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
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