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HM62W16258B Datasheet, PDF (3/16 Pages) Hitachi Semiconductor – 4 M SRAM (256-kword x 16-bit)
Pin Arrangement
HM62W16258B Series
A4
A3
A2
A1
A0
CS
I/O0
I/O1
I/O2
I/O3
VCC
VSS
I/O4
I/O5
I/O6
I/O7
WE
A17
A16
A15
A14
A13
44-pin TSOP
1
44
2
43
3
42
4
41
5
40
6
39
7
38
8
37
9
36
10
35
11
34
12
33
13
32
14
31
15
30
16
29
17
28
18
27
19
26
20
25
21
24
22
23
(Top view)
A5
A6
A7
OE
UB
LB
I/O15
I/O14
I/O13
I/O12
VSS
VCC
I/O11
I/O10
I/O9
I/O8
NC
A8
A9
A10
A11
A12
Pin Description
Pin name
A0 to A17
I/O0 to I/O15
CS
WE
OE
LB
UB
VCC
VSS
NC
Function
Address input
Data input/output
Chip select
Write enable
Output enable
Lower byte select
Upper byte select
Power supply
Ground
No connection
3