a625308 AMIC Technology Corporation, a625308 Datasheet - Page 2

• Manufacturer Part Number: a625308
• Description: 32k X 8 Bit Cmos Sram
• Manufacturer: AMIC Technology Corporation

Preliminary
Features
n External Operating Voltage: 4.5V to 5.5V
n Access times: 70 ns (max.)
n Current:
General Description
The A625308 is a low operating current 262,144-bit
static random access memory organized as 32,768
words by 8 bits and operates on a single 5V power
supply.
Inputs and three-state outputs are TTL compatible and
allow for direct interfacing with common system bus
structures.
Pin Configurations
PRELIMINARY
A625308-L series:
A625308-S series:
GND
A14
A12
I/O
I/O
I/O
(December, 2000, Version 0.2)
A7
A6
A5
A4
A3
A2
A1
A0
0
1
2
n SOP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Operating: 70mA (max.)
Standby: 100 A (max.)
Operating: 70mA (max.)
Standby:
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
WE
A13
A8
A9
A11
OE
A10
CE
I/O
I/O
I/O
I/O
I/O
25 A (max.)
7
6
5
4
3
VCC
VCC
A11
A13
WE
A14
A12
A12
A14
WE
A13
A11
1
OE
OE
A9
A8
A7
A6
A5
A4
A3
A3
A4
A5
A6
A7
A8
A9
n TSOP
n Full static operation, no clock or refreshing required
n All inputs and outputs are directly TTL compatible
n Common I/O using three-state output
n Data retention voltage: 2.0V (min.)
n Available in 28-pin SOP and TSOP (forward and
Minimum standby power is drawn by this device when
levels.
Data retention is guaranteed at a power supply voltage
as low as 2.0V.
CE is at a high level, independent of the other input
reverse type) packages
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A625308R
A625308V
32K X 8 BIT CMOS SRAM
A625308 Series
AMIC Technology, Inc.
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28
27
26
25
24
23
22
21
20
19
18
17
16
15
CE
A1
A10
I/O
I/O
I/O
I/O
I/O
VSS
I/O
I/O
I/O
A0
A1
A2
A2
A0
I/O
I/O
I/O
VSS
I/O
I/O
I/O
I/O
I/O
CE
A10
7
6
5
4
3
2
1
0
0
1
2
3
4
5
6
7