參數(shù)資料
型號: AT45BR3214B
廠商: Atmel Corp.
英文描述: 32-MEGABIT DATAFLASH + 4-MEGABIT SRAM STACK MEMORY
中文描述: 32-MEGABIT的DataFlash 4兆位的SRAM堆棧內(nèi)存
文件頁數(shù): 37/40頁
文件大小: 488K
代理商: AT45BR3214B
37
AT45BR3214B
3356B–DFLASH–10/04
Notes:
1. Typical values are under the condition of T
A
= 25
°
C. Typical values are sampled and not 100% tested.
2. t
RC
is read cycle time.
Data Retention Timing Diagram 1
Data Retention Timing Diagram 2
Data Retention Electric Characteristic
T
A
= -40
°
C to 85
°
C
Symbol
Parameter
Test Condition
Min
Typ
Max
Unit
V
DR
V
CC
for Data Retention
SCS1 > V
CC
- 0.2V or
SCS2 < V
SS
+ 0.2V or
SUB, SLB > V
CC
- 0.2V
V
IN
> V
CC
- 0.2V or
V
IN
< V
SS
+ 0.2V
1.2
3.3
V
I
CCDR
Data Retention Current
Vcc=1.5V,
SCS1 > V
CC
- 0.2V or
SCS2 < V
SS
+ 0.2V or
SUB, SLB > V
CC
- 0.2V
V
IN
> V
CC
- 0.2V or
V
IN
< V
SS
+ 0.2V
0.2
6
μA
t
CDR
Chip Deselect to Data
Retention Time
See Data Retention Timing Diagram
0
ns
t
R
Operating Recovery Time
t
RC
ns
DATA RETENTION MODE
t
R
t
CDR
VCC
SCS1 > VCC - 0.2V
2.7V
IH
VDR
SCS1
VSS
VCC
2.7V
VDR
SCS2
VSS
0.4V
DATA RETENTION MODE
t
R
t
CDR
SCS2 < 0.2V
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