upd43256b-x Renesas Electronics Corporation., upd43256b-x Datasheet - Page 4

• Manufacturer Part Number: upd43256b-x
• Description: 256k-bit Cmos Static Ram 32k-word By 8-bit Extended Temperature Operation
• Manufacturer: Renesas Electronics Corporation.

Block Diagram
Truth Table
Remark × : V
4
I/O1
I/O8
GND
/WE
/OE
/CS
V
A14
CC
A0
/CS
H
L
L
L
IH
/OE
or V
H
×
×
L
IL
Address
buffer
/WE
H
H
×
L
Output disable
Not selected
Mode
Write
Read
decoder
Data Sheet M11012EJ6V0DS
Row
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
μ
Output data
PD43256B-X
controller