WCFS4016C1C
Data Retention Characteristics
Over the Operating Range
Parameter
V
DR
t
CDR[3]
t
R[10]
Description
V
CC
for Data Retention
Chip Deselect to Data Retention Time
Operation Recovery Time
V
CC
= V
DR
= 3.0V,
CE > V
CC
– 0.3V,
V
IN
> V
CC
– 0.3V or V
IN
< 0.3V
Conditions
[11]
Min.
2.0
0
t
RC
Max.
Unit
V
ns
ns
Data Retention Waveform
DATA RETENTION MODE
V
CC
3.0V
t
CDR
CE
V
DR
> 2V
3.0V
t
R
Switching Waveforms
Read Cycle No. 1
[12, 13]
t
RC
ADDRESS
t
AA
t
OHA
DATA OUT
PREVIOUS DATA VALID
DATA VALID
Notes:
10. t
r
< 3 ns for the -12 and -15 speeds. t
r
< 5 ns for the -20 and slower speeds
11. No input may exceed V
CC
+ 0.5V
12. Device is continuously selected. OE, CE, BHE, and/or BHE = V
IL
..
13. WE is HIGH for read cycle.
Page 5 of 10
WEIDA [ WEIDA SEMICONDUCTOR, INC. ]
