MT5C2568 Datasheet, PDF (1/16 Pages) Austin Semiconductor – 32K x 8 SRAM SRAM MEMORY ARRAY

Austin Semiconductor, Inc.
SRAM
MT5C2568
AS5C2568
32K x 8 SRAM
SRAM MEMORY ARRAY
AVAILABLE AS MILITARY
SPECIFICATIONS
•SMD 5962-88662
•SMD 5962-88552
•MIL-STD-883
FEATURES
• Access Times: 12, 15, 20, 25, 35, 45, 55, 70, & 100ns
• 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
PIN ASSIGNMENT
(Top View)
28-PIN SOJ (DCJ)
28-Pin DIP (C, CW)
32-Pin LCC (ECW)
A14 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
DQ1 11
DQ2 12
DQ3 13
V_SS 14
28 VCC
27 WE\
26 A13
25 A8
24 A9
23 A11
22 OE\
21 A10
20 CE\
19 DQ8
18 DQ7
17 DQ6
16 DQ5
15 DQ4
4 3 2 1 32 31 30
A6 5
A5 6
A4 7
A3 8
A2 9
A1 10
A0 11
NC 12
DQ1 13
29 A8
28 A9
27 A11
26 NC
25 OE\
24 A10
23 CE\
22 DQ8
21 DQ7
14 15 16 17 18 19 20
28-Pin LCC (EC)
OPTIONS
• Timing
12ns access¹
15ns access¹
20ns access
25ns access
35ns access
45ns access
55ns access²
70ns access²
100ns access
MARKING
-12
-15
-20
-25
-35
-45
-55
-70
-100
28-Pin Flat Pack (F)
A14 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
DQ1 11
DQ2 12
DQ3 13
VSS 14
3 2 1 28 27
28 VCC
27 WE\
26 A13
25 A8
24 A9
23 A11
22 OE\
21 A10
20 CE\
19 DQ8
18 DQ7
17 DQ6
16 DQ5
15 DQ4
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
DQ1 11
DQ2 12
26 A13
25 A8
24 A9
23 A11
22 OE\
21 A10
20 CE\
19 DQ8
18 DQ7
13 14 15 16 17
• Package(s)³
Ceramic DIP (300 mil)
Ceramic DIP (600 mil)
Ceramic LCC (28 leads)
Ceramic LCC (32 leads)
Ceramic Flat Pack
Ceramic SOJ
C
CW
EC
ECW
F
DCJ
No. 108
No. 110
No. 204
No. 208
No. 302
No. 500
• Operating Temperature Ranges
Military -55^oC to +125^oC
XT
Industrial -40^oC to +85^oC
IT
• 2V data retention/low power
L
NOTES:
1. -12 available in IT only.
2. Electrical characteristics identical to those provided for the
45ns access devices.
3. Plastic SOJ (DJ Package) is available on the AS5C2568 datasheet.
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 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,
Austin 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
accomplished when WE\ remains HIGH and CE\ and OE\ go
LOW. The device offers a reduced power standby mode when
disabled. This allows system designs to achieve low standby
power requirements.
The “L” version provides a battery backup/low
voltage data retention mode, offering 2mW maximum power
dissipation at 2 volts. All devices operate from a single +5V
power supply and all inputs and outputs are fully TTL
compatible.
MT5C2568 / AS5C2568
Rev. 4.5 06/05
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
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