鈥?/div>
All inputs and outputs directly TTL compatible
Three-state outputs
Battery back-up operation capability
Data retention voltage: 2V (min.)
Packaged in 28-pin 330 mil SOP,
standard type one TSOP (8 mm x 13.4 mm )
PIN CONFIGURATIONS
BLOCK DIAGRAM
V
DD
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
V
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
V
DD
#WE
A13
A8
A9
A11
#OE
A10
#CS
I/O8
I/O7
I/O6
I/O5
I/O4
V
SS
A0
.
.
A14
DECODER
CORE
ARRAY
28-pin
SOP
23
22
21
20
19
18
17
16
15
#CS
#OE
#WE
CONTROL
DATA I/O
I/O1
.
.
I/O8
#OE
A11
A9
A8
A13
#WE
V
DD
A14
A12
A7
A6
A5
A4
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28-pin
TSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A10
#CS
I/O 8
I/O 7
I/O 6
I/O 5
I/O 4
V
SS
I/O 3
I/O 2
I/O 1
A0
A1
A2
PIN DESCRIPTION
SYMBOL
A0鈭扐14
I/O1鈭捍/O8
#CS
#WE
#OE
V
DD
V
SS
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Select Input
Write Enable Input
Output Enable Input
Power Supply
Ground
-1-
Publication Release Date: February 2001
Revision A16