UPD43256BGW-70X-9JL NEC [NEC], UPD43256BGW-70X-9JL Datasheet - Page 4

• Manufacturer Part Number: UPD43256BGW-70X-9JL
• Description: 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT EXTENDED TEMPERATURE OPERATION
• Manufacturer: NEC [NEC]

Block Diagram
Truth Table
Remark
4
I/O1
I/O8
GND
/WE
/CS
/OE
V
CC
A14
A0
/CS
H
L
L
L
: V
IH
/OE
or V
H
L
IL
Address
buffer
/WE
H
H
L
Output disable
Not selected
Mode
Write
Read
decoder
Row
Data Sheet M11012EJ4V0DS
Input data
controller
High impedance
Sense amplifier / Switching circuit
D
I/O
D
OUT
IN
Memory cell array
Column decoder
Address buffer
262,144 bits
Supply current
I
I
CCA
SB
Output data
PD43256B-X
controller