March 2002
AS7C4096
AS7C34096
®
5V/ 3.3V 512K × 8 CMOS SRAM
Features
• AS7C4096 (5V version)
• Low power consumption: STANDBY
- 110 mW (AS7C4096) / max CMOS
- 72 mW (AS7C34096) / max CMOS
• Equal access and cycle times
• Easy memory expansion with CE, OE inputs
• TTL-compatible, three-state I/ O
• JEDEC standard packages
- 400 mil 36-pin SOJ
- 44-pin TSOP 2
• ESD protection ≥ 2000 volts
• Latch-up current ≥ 200 mA
• AS7C34096 (3.3V version)
• Industrial and commercial temperature
• Organization: 524,288 words × 8 bits
• Center power and ground pins
• High speed
- 10/ 12/ 15/ 20 ns address access time
- 5/ 6/ 7/ 8 ns output enable access time
• Low power consumption: ACTIVE
- 1375 mW (AS7C4096) / max @ 12 ns
- 468 mW (AS7C34096) / max @ 12 ns
Pin arrangements
Logic block diagram
36-pin SOJ (400 mil)
44-pin TSOP 2
NC
NC
A0
A1
A2
A3
A4
CE
NC
NC
NC
A18
1
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A0
A1
1
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
NC
2
V
CC
2
A18
A17
A16
A15
OE
3
A2
3
4
GND
A3
4
A17
A16
A15
OE
5
A4
5
6
Input buffer
CE
6
7
I/ O1
I/ O2
VCC
GND
I/ O3
I/ O4
WE
A5
7
I/ O8
I/ O7
GND
VCC
8
8
I/ O1
I/ O8
I/ O7
9
A0
A1
A2
A3
A4
A5
A6
A7
A8
9
I/ O2
VCC
10
11
12
13
14
15
16
17
18
19
20
21
22
10
11
12
13
14
15
16
17
18
GND
I/ O1
I/ O8
I/ O6
I/ O5
A14
A13
A12
A11
A10
NC
VCC
GND
I/ O3
I/ O4
WE
A5
524,288 × 8
Array
(4,194,304)
I/ O6
I/ O5
A14
A13
A12
A11
A10
NC
A6
A7
A6
A8
A7
A9
A8
A9
A9
NC
NC
NC
NC
Column decoder
WE
OE
CE
48-pin BGA Package
Control
Circuit
1
2
3
4
5
6
A
B
C
D
E
A
A
NC
WE
NC
NC
NC
A
A
A
8
0
1
3
6
I/ O5
I/ O6
A
A
A
7
I/ O1
I/ O2
VCC
2
4
NC
NC
NC
NC
OE
A
NC
NC
NC
NC
5
V
NC
NC
SS
VCC
I/ O7
I/ O8
V
SS
F
A
A
I/ O3
I/ O4
18
17
G
H
CE
A
A
15
16
A
A
A
A
A
A
14
9
10
11
12
13
Selection guide
–10
10
5
–12
–15
–20
20
Unit
Maximum address access time
12
6
15
7
ns
Maximum outputenable access time
9
ns
AS7C4096
AS7C34096
AS7C4096
AS7C34096
–
250
130
20
220
110
20
180
100
20
mA
mA
mA
mA
Maximum operating current
160
–
Maximum CMOS standby current
20
20
20
20
5/ 23/ 02; v.1.8
Alliance Semiconductor
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