UPD43256BGW-B12-9JL NEC [NEC], UPD43256BGW-B12-9JL Datasheet - Page 4

• Manufacturer Part Number: UPD43256BGW-B12-9JL
• Description: 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT
• Manufacturer: NEC [NEC]

4
Remark Refer to Package Drawings for the 1-pin index mark.
GND
I/O1
I/O2
I/O3
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
28-PIN PLASTIC SOP (11.43 mm (450))
A0 - A14
I/O1 - I/O8
/CS
/WE
/OE
V
GND
CC
Data Sheet M10770EJCV0DS00
[ PD43256BGU-xxLL ]
1
2
3
4
5
6
7
8
9
10
11
12
13
14
[ PD43256BGU-Axx ]
[ PD43256BGU-Bxx ]
[ PD43256BGU-xxL ]
: Write Enable
: Output Enable
: Power supply
: Ground
: Address inputs
: Data inputs / outputs
: Chip Select
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