UPD43256B-A NEC [NEC], UPD43256B-A Datasheet - Page 3

• Manufacturer Part Number: UPD43256B-A
• Description: 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT
• Manufacturer: NEC [NEC]

Pin Configuration (Marking Side)
A0 - A14
I/O1 - I/O8 : Data inputs/outputs
CS
WE
OE
V
GND
GND
I/O1
I/O2
I/O3
A14
A12
CC
A7
A6
A5
A4
A3
A2
A1
A0
28-pin plastic DIP (600 mil)
28-pin plastic SOP (450 mil)
PD43256BCZ
PD43256BGU
1
2
3
4
5
6
7
8
9
10
11
12
13
14
: Address inputs
: Chip Select
: Write Enable
: Output Enable
: Power supply
: Ground
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
WE
A13
A8
A9
A11
OE
A10
CS
I/O8
I/O7
I/O6
I/O5
I/O4
CC
PD43256B
3