November 2000
®
AS7C1024
AS7C31024
5V/3.3V 128K×8 CMOS SRAM (Evolutionary Pinout)
Features
• AS7C1024 (5V version)
• AS7C31024 (3.3V version)
• Industrial and commercial temperatures
• Organization: 131,072 words × 8 bits
• High speed
- 10/12/15/20 ns address access time
- 5/6/8/10 ns output enable access time
• 2.0V data retention
• Easy memory expansion with CE1, CE2, OE inputs
• TTL/LVTTL-compatible, three-state I/O
• 32-pin JEDEC standard packages
-
-
-
-
300 mil SOJ
400 mil SOJ
8 × 20mm TSOP I
8 × 13.4 mm sTSOP I
• Low power consumption: ACTIVE
- 825 mW (c) / max @ 12 ns
- 360 mW (AS7C31024) / max @ 12 ns
• ESD protection
≥
2000 volts
• Latch-up current
≥
200 mA
• Low power consumption: STANDBY
- 55 mW (AS7C1024) / max CMOS
- 36 mW (AS7C31024) / max CMOS
Logic block diagram
V
CC
GND
Input buffer
A0
A1
A2
A3
A4
A5
A6
A7
A8
I/O7
Sense amp
512
×
256
×
8
Array
(1,048,576)
Pin arrangement
32-pin TSOP I
(8 x 20mm)
A11
A9
A8
A13
WE
CE2
A15
V
CC
NC
A16
A14
A12
A7
A6
A5
A4
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
OE
A10
CE1
I/O7
I/O6
I/O5
I/O4
I/O3
GND
I/O2
I/O1
I/O0
A0
A1
A2
A3
NC
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
GND
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
V
CC
A15
CE2
WE
A13
A8
A9
A11
OE
A10
CE1
I/O7
I/O6
I/O5
I/O4
I/O3
Row decoder
I/O0
Column decoder
A9
A10
A11
A12
A13
A14
A15
A16
WE
OE
CE1
CE2
Control
circuit
Selection guide
AS7C1024-10
AS7C31024-10
Maximum address access time
Maximum output enable access time
Maximum operating current
Maximum CMOS standby current
Shaded areas contain advance information.
AS7C1024
AS7C31024
AS7C1024
AS7C31024
10
5
150
100
10
10
AS7C1024-12 AS7C1024-15 AS7C1024-20
AS7C31024-12 AS7C31024-15 AS7C31024-20
12
15
20
6
8
10
140
125
110
90
80
75
10
10
15
10
10
15
AS7C1024
AS7C31024
Unit
ns
ns
mA
mA
mA
mA
11/29/00
ALLIANCE SEMICONDUCTOR
1
Copyright ©2000 Alliance Semiconductor. All rights reserved.
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
