Etr onTech
Data Retention Characteristics (Ta = -40°C to 85°C)
Symbol
Parameter
CE1#
≥
V
DD
– 0.2V
VDR
Data Retention Supply
Voltage
or UB# = LB#
≥
V
DD
– 0.2V
or CE2
≤
0.2V,
VIN
≥
V
DD
– 0.2V or VIN
≤
0.2V
tSDR
tRDR
Chip Deselect to Data Retention Mode Time
Recovery Time
0
tRC
1.0
Min
EM565161
Typ
Max
Unit
−
3.6
V
−
−
−
−
ns
ns
CE1# or UB#/LB# Controlled Data Retention Mode
tS D R
VDD
2 .7 V
D a ta R e te n tio n M o d e
tR D R
2 .2 V
VDR
CE1#,
U B # /L B #
GND
N o te 1
CE2 Controlled Data Retention Mode
VDD
2.7 V
CE2
tSDR
tRD R
Data Reten tion M ode
VDR
Note 2
0.4 V
GND
Note:
1. CE1#
≥
V
DD
– 0.2V or UB# = LB#
≥
V
DD
– 0.2V
2. CE2
≤
0.2V
Preliminary
11
Rev 0.9
Jan 2002
ETRON [ ETRON TECHNOLOGY, INC. ]
