EtronTech
Data Retention Characteristics (Ta = -40° C to 85° C)
Symbol
Data Retention Supply
Voltage
Parameter
CE1#
≥
V
DD
- 0.2V, CE2
≤
0.2V,
VIN
≥
V
DD
- 0.2V or VIN
≤
0.2V
VDD = 1.5V, CE1#
≥
V
DD
- 0.2V,
CE2
≤
0.2V, VIN
≥
V
DD
- 0.2V or
VIN
≤
0.2V
Min
EM562081
Typ
Max
Unit
VDR
1.5
−
3.6
V
IDR
tSDR
tRDR
Data Retention Current
−
0
tRC
0.5
−
−
3
−
−
µA
ns
ns
Chip Deselect to Data Retention Mode Time
Recovery Time
CE1# Controlled Data Retention Mode (see Note1)
t SDR
VDD
2.7V
Data Retention Mode
tRDR
2.2V
VDR
CE1#
GND
Note 1
CE2 Controlled Data Retention Mode (see Note2)
VD D
2.7 V
t
CE2
SD R
tRDR
D at a R et e nt io n M od e
V
D R
No te 2
0 .4 V
GN D
Note:
(1) If CE1# controlled data retention mode, minimum standby current mode is entered when CE2
≤
0.2V or CE2
≥
VDD - 0.2V.
(2) In CE2 controlled data retention mode, minimum standby current mode is entered when CE2
≤
0.2V.
Preliminary
11
Rev 1.0
July 2001
ETRON [ ETRON TECHNOLOGY, INC. ]
