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AS7C1025 Datasheet(PDF) 1 Page - Alliance Semiconductor Corporation

Part No. AS7C1025
Description  5V/3.3V 128K x8 CMOS SRAM (Revolutionary pinout)
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Maker  ALSC [Alliance Semiconductor Corporation]
Homepage  http://www.alsc.com
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AS7C1025 Datasheet(HTML) 1 Page - Alliance Semiconductor Corporation

   
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March 2001
®
AS7C1025
AS7C31025
5V/3.3V 128Kx8 CMOS SRAM (Revolutionary pinout)
Copyright © Alliance Semiconductor. All rights reserved.
3/23/01; v.1.0
Alliance Semiconductor
P. 1 of 9
Features
• AS7C1025 (5V version)
• AS7C31025 (3.3V version)
• Industrial and commercial temperatures
• Organization: 131,072 words × 8 bits
• High speed
- 12/15/20 ns address access time
- 6,7,8 ns output enable access time
• Low power consumption: ACTIVE
- 715 mW (AS7C1025) / max @ 12 ns (5V)
- 360 mW (AS7C31025) / max @ 12 ns (3.3V)
• Low power consumption: STANDBY
- 27.5 mW (AS7C1025) / max CMOS (5V)
- 1.8 mW (AS7C31025) / max CMOS (3.3V)
• 2.0V data retention
• Easy memory expansion with CE, OE inputs
• Center power and ground
• TTL/LVTTL-compatible, three-state I/O
• JEDEC-standard packages
- 32-pin, 300 mil SOJ
- 32-pin, 400 mil SOJ
- 32-pin TSOP II
• ESD protection
≥ 2000 volts
• Latch-up current
≥ 200 mA
Logic block diagram
512
×256×8
Array
(1,048,576)
Input buffer
I/O0
I/O7
OE
CE
WE
Column decoder
Control
circuit
A0
A1
A2
A3
A4
A5
A6
A7
VCC
GND
A8
Pin arrangement
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A16
A15
A14
A13
OE
I/O7
I/O6
GND
VCC
I/O5
I/O4
A12
A11
A10
A9
A8
A0
A1
A2
A3
CE
I/O0
I/O1
VCC
GND
I/O2
I/O3
WE
A4
A5
A6
A7
32-pin SOJ (300 mil)
32-pin SOJ (400 mil)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A0
A1
A2
A3
CE
I/O0
I/O1
VCC
GND
I/O2
I/O3
WE
A16
A15
A14
A13
OE
I/O7
I/O6
GND
VCC
I/O5
I/O4
A9
A8
A4
A5
A6
A7
A12
A11
A10
32-pin TSOP II
Selection guide
Shaded areas contain advance information.
AS7C1025-12
AS7C31025-12
AS7C1025-15
AS7C31025-15
AS7C1025-20
AS7C31025-20
Unit
Maximum address access time
12
15
20
ns
Maximum output enable access time
3
4
5
ns
Maximum operating current
AS7C1025
130
85
80
mA
AS7C31025
100
85
80
mA
Maximum CMOS standby current
AS7C1025
5
5
5
mA
AS7C31025
5
5
5
mA


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