May 2000
AS7C1026
AS7C31026
®
5V/ 3.3V 64K×16 CMOS SRAM
• Low power consumption: STANDBY
Features
• AS7C1026 (5V version)
• AS7C31026 (3.3V version)
- 28 mW (AS7C1026) / max CMOS I/ O
- 18 mW (AS7C31026) / max CMOS I/ O
• 2.0V data retention
• Easy memory expansion with CE, OE inputs
• TTL-compatible, three-state I/ O
• JEDEC standard packaging
- 44-pin 400 mil SOJ
- 44-pin 400 mil TSOP II
- 48-ball 6 mm × 8 mm CSP mBGA
• ESD protection ≥ 2000 volts
• Latch-up current ≥ 200 mA
• Industrial and commercial versions
• Organization: 65,536 words x 16 bits
• Center power and ground pins for low noise
• High speed
- 10/ 12/ 15/ 20 ns address access time
- 5/ 6/ 8/ 10 ns output enable access time
• Low power consumption: ACTIVE
- 880 mW (AS7C1026) / max @ 12 ns
- 396 mW (AS7C31026) / max @ 12 ns
Logic block diagram
Pin arrangement
44-Pin SOJ, TSOP II (400 mil)
A0
VCC
A1
1
2
3
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A5
A6
A7
A4
A3
A2
A1
A0
CE
A2
64K × 16
Array
GND
A3
48-CSP mini Ball-Grid-Array Package
4
OE
A4
5
UB
1
2
3
4
5
6
A5
A6
A7
6
LB
7
8
9
I/ O15
I/ O14
I/ O13
I/ O12
GND
VCC
I/ O11
I/ O10
I/ O9
I/ O8
NC
A8
A9
A10
A11
NC
A
B
C
D
E
LB
OE
A
A
A
NC
I/ O0
I/ O1
I/ O2
I/ O3
VCC
GND
I/ O4
I/ O5
I/ O6
I/ O7
WE
A15
A14
A13
A12
NC
0
1
2
I/ O8 UB A3
I/ O9 I/ O10 A5
VSS I/ O11 NC
A4 CE I/ O0
A6 I/ O1 I/ O2
A7 I/ O3 VDD
10
11
12
13
14
15
16
17
18
19
20
21
22
I/ O0–I/ O7
I/ O8–I/ O15
I/ O
Control circuit
buffer
Column decoder
WE
VDD I/ O12 NC NC I/ O4
V
SS
F I/ O14 I/ O13 A14 A15 I/ O5 I/ O6
G I/ O15 NC A12 A13 WE I/ O7
UB
OE
LB
H
NC
A8
A9 A10 A11 NC
CE
Selection guide
AS7C1026-12 AS7C1026-15 AS7C1026-20
AS7C31026-10 AS7C31026-12 AS7C31026-15 AS7C31026-20 Unit
Maximum address access time
10
5
12
6
15
8
20
10
140
90
3
ns
Maximum output enable access time
ns
AS7C1026
AS7C31026
AS7C1026
AS7C31026
–
160
110
3
150
100
3
mA
mA
mA
mA
Maximum operating current
125
–
Maximum CMOS standby current
3
3
3
3
Shaded areas indicate preliminary information.
DID 11-20011-A. 5/ 22/ 00
ALLIANCE SEMICONDUCTOR
1
Copyright ©1999 Alliance Semiconductor. All rights reserved.