October 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 (AS7C1024) / 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
Pin arrangement
32-pin TSOP I and sTSOP I
(8 x 20mm and 8 x 13.4mm)
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
NC
A10
A16
CE1
A14
I/O7
A12
I/O6
A7
I/O5
I/O4
A6
I/O3
A5
GND
A4
I/O2
A3
I/O1
A2
I/O0
A1
A0
A0
A1
I/O0
A2
I/O1
A3
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
512×256×8
Array
(1,048,576)
Sense amp
I/O0
Column decoder
A9
A10
A11
A12
A13
A14
A15
A16
WE
OE
CE1
CE2
Control
circuit
Selection guide
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
AS7C1024-10 AS7C1024-12 AS7C1024-15 AS7C1024-20
AS7C31024-10 AS7C31024-12 AS7C31024-15 AS7C31024-20
10
12
15
20
5
6
8
10
150
140
125
110
100
90
80
75
10
10
10
15
10
10
10
15
AS7C1024
AS7C31024
I/O7
AS7C1024
AS7C31024
Unit
ns
ns
mA
mA
mA
mA
10/18/00
ALLIANCE SEMICONDUCTOR
1
Copyright ©2000 Alliance Semiconductor. All rights reserved.
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
