UPD43256BGW-70X-9JL NEC [NEC], UPD43256BGW-70X-9JL Datasheet - Page 14

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

Low V
Note 2 A (T
Data Retention Timing Chart
Note A version : 3.0 V, B version : 2.7 V
Remark The other pins (Address, /OE, /WE, I/O) can be in high impedance state.
14
Data retention supply voltage
Data retention supply current
Chip deselection to data retention mode
Operation recovery time
CC
V
Data Retention Characteristics (T
CCDR
V
V
IL
4.5 V
IH
(MAX.)
(MIN.)
(MIN.)
A
Parameter
GND
V
Note
40 C), 7 A (T
CC
t
CDR
A
70 C)
/CS
Symbol
V
I
t
CCDR
CCDR
CDR
t
R
A
= 25 to +85 C)
Data Sheet M11012EJ4V0DS
/CS
V
CC
Data retention mode
= 3.0 V, /CS
/CS
V
CC
V
Test Condition
0.2 V
CC
– 0.2 V
V
CC
0.2 V
MIN.
2.0
0
5
t
R
TYP.
0.5
PD43256B-X
MAX.
20
5.5
Note
Unit
ms
ns
V
A