A62S8308 Series
Preliminary
256K X 8 BIT LOW VOLTAGE CMOS SRAM
Features
n Power supply range: 2.7V to 3.6V
n Access times: 55ns (max.): for VCC = 3.0V to 3.6V
70ns (max.): for VCC = 2.7V to 3.6V
n Current:
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 Output enable and two chip enable inputs for easy
application
n Data retention voltage: 2V (min.)
n Available in 32-pin SOP, TSOP, sTSOP (8X
13.4mm) forward type and 36-ball Mini BGA (6X8)
A62S8308-S series:
Operating: 40mA (max.)
Standby: 10mA (max.)
Operating: 40mA (max.)
Standby: 15mA (max.)
A62S8308-SI series:
packages
n Extended operating temperature range:-25°C to 85°C
for –SI series
General Description
The A62S8308 is a low operating current 2,097,152-bit
static random access memory organized as 262,144
words by 8 bits and operates on a low power supply
voltage from 2.7V to 3.6V.
Inputs and three-state outputs are TTL compatible and
allow for direct interfacing with common system bus
structures.
Two chip enable inputs are provided for power down and
a device enable and an output enable input are included
for easy interfacing.
Data retention is guaranteed at a power supply voltage
as low as 2V.
Pin Configurations
n SOP
n TSOP/(sTSOP)
n Mini BGA (6X8) Top View
(forward type)
A17
1
VCC
A15
CE2
32
31
30
1
2
3
4
5
6
A16
A14
A12
A7
2
3
A11
A9
A8
1
2
3
4
5
6
7
8
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE
A10
CE1
A
B
C
D
E
F
A0
A1 CE2 A3
A6
A8
WE
A13
A8
4
29
28
27
26
4
0
I/O
A2
A4
A7 I/O
WE
7
A13
WE
CE2
A15
VCC
A17
A16
A14
A12
A7
I/O
5
6
6
I/O
A6
5
I/O5
VSS
VCC
I/O6
NC A5
I/O1
VCC
VSS
I/O2
3
I/O
I/O4
I/O3
GND
I/O2
I/O1
A5
A4
A3
A2
A9
7
A62S8308V
(A62S8308X)
8
A11
OE
25
24
23
22
9
10
11
12
13
14
15
16
9
A10
10
11
12
13
14
15
16
0
I/O
NC A17
A0
A1
A2
A3
CE1
A1
A0
A6
A5
A4
I/O7
21
20
19
18
17
7
G
H
I/O
A16 A15 I/O
OE
CE1
I/O0
I/O1
I/O6
I/O5
I/O4
I/O3
A9 A10 A11 A12 A13 A14
I/O2
GND
PRELIMINARY
(March, 2001, Version 0.2)
1
AMIC Technology, Inc.