at52br3224a ATMEL Corporation, at52br3224a Datasheet - Page 43

• Manufacturer Part Number: at52br3224a
• Description: At52br3224a 32-megabit Flash + 4-megabit/ 8-megabit Sram Stack Memory
• Manufacturer: ATMEL Corporation

Data Retention Electric Characteristic
T
Notes:
Data Retention Timing Diagram 1
Data Retention Timing Diagram 2
3338B–STKD–6/03
A
V
I
t
t
Symbol
CCDR
CDR
R
= -40° C to 85° C
DR
1. Typical values are under the condition of T
2. t
RC
Parameter
V
Data Retention Current
Chip Deselect to Data
Retention Time
Operating Recovery Time
CC
is read cycle time.
for Data Retention
SCS1
VCC
VDR
2.7V
VSS
SCS2
VCC
VDR
2.7V
VSS
0.4V
IH
Test Condition
SCS1 > V
SCS2 < V
SUB, SLB > V
V
V
Vcc = 3V,
SCS1 > V
SCS2 < V
SUB, SLB > V
V
V
See Data Retention Timing Diagram
IN
IN
IN
IN
> V
< V
> V
< V
t
CC
SS
CC
SS
CDR
t
CDR
CC
SS
+ 0.2V
CC
SS
+ 0.2V
- 0.2V or
- 0.2V or
A
+ 0.2V or
+ 0.2V or
- 0.2V or
- 0.2V or
= 25° C. Typical values are sampled and not 100% tested.
CC
CC
- 0.2V
- 0.2V
DATA RETENTION MODE
DATA RETENTION MODE
SCS1 > VCC - 0.2V
SCS2 < 0.2V
AT52BR3224A(T)/3228A(T)
t
R
t
R
Min
1.2
t
RC
0
Typ
1
Max
3.3
8
Unit
µA
ns
ns
V
43