UPD43256B-A NEC [NEC], UPD43256B-A Datasheet - Page 16

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

Data Retention Timing Chart
16
Note
Remark The other pins (address, OE, WE, I/Os) can be in high impedance state.
V
V
IL
A Version: 3.0 V, B Version: 2.7 V
IH
(MAX.)
(MIN.)
V
5.0 V
4.5 V
GND
CCDR
Note
t
CDR
CS
V
CC
Data retention mode
CS
V
CC
– 0.2 V
t
R
PD43256B