Cypress CY7C1012DV33 - Manual (Page 6)

CY7C1012DV33
Document Number: 38-05610 Rev. *D Page 6 of 11
Data Retention Characteristics
Over the Operating Range
Parameter Description Conditions [3] Min Typ Max Unit
V
DR
V
CC
for Data Retention 2 V
I
CCDR
Data Retention Current V
CC
= 2V, CE > V
CC
– 0.2V,
V
IN
> V
CC
– 0.2V or V
IN
< 0.2V
25 mA
t
CDR
[11]
Chip Deselect to Data Retention
Time 0 ns
t
R
[12] Operation Recovery Time t
RC
ns
Data Retention Waveform
Switching Waveforms
Figure 3. Read Cycle No. 1 [13, 14]
Figure 4. Read Cycle No. 2 (OE Controlled)
[3, 14, 15]
3.0V 3.0V
t
CDR
V
DR
> 2V
DATA RETENTION MODE
t
R
CE
V
CC
PREVIOUS DATA VALID DATA VALID
RC
t
AA
t
OHA
t RC
ADDRESS
DATA OUT
50% 50%
DATA VALID
t
RC
t
ACE
t
DOE
t
LZOE
t
LZCE
t
PU
HIGH IMPEDANCE
t
HZOE
t
PD
t
HZCE
OE
CE
ADDRESS
DATA OUT
V
CC
SUPPLY
CURRENT
HIGH
IMPEDANCE
I
CC
I
SB
Notes
11. Tested initially and after any design or process changes that may affect these parameters.
12. Full device operation requires linear V
CC
ramp from V
DR
to V
CC(min)
> 50 μs or stable at V
CC(min)
> 50 μs.
13. Device is continuously selected. OE, CE = V
IL
.
14. WE is HIGH for read cycle.
15. Address valid before or similar to CE transition LOW.
[+] Feedback