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參數(shù)資料
| 型號： | BQ3285LS |
| 英文描述： | Real-Time Clock |
| 中文描述： | 實時時鐘 |
| 文件頁數(shù)： | 13/26頁 |
| 文件大小： | 831K |
| 代理商： | BQ3285LS |
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13
bq3285EC/LC
July 1996
DC Electrical Characteristics—bq3285EC
(T
A
= T
OPR
, V
CC
= 5V )
Symbol
Parameter
Minimum
Typical
Maximum
Unit
Conditions/Notes
I
LI
Input leakage current
-
-
±
1
μ
A
V
IN
= V
SS
to V
CC
I
LO
Output leakage current
-
-
±
1
μ
A
AD
0
–AD
7
and INT in
high impedance,
V
OUT
= V
SS
to V
CC
V
OH
Output high voltage
2.4
-
-
V
I
OH
= -2.0 mA
V
OL
Output low voltage
-
-
0.4
V
I
OL
= 4.0 mA
I
CC
Operating supply current
-
7
15
mA
Min. cycle, duty = 100%,
I
OH
= 0mA, I
OL
= 0mA
I
CCSB
Standby supply current
-
300
-
μ
A
V
IN
= V
SS
or V
CC
,
CS
≥
V
CC
- 0.2
V
SO
Supply switch-over voltage
-
V
BC
-
V
I
CCB
Battery operation current
-
0.3
0.5
μ
A
V
BC
= 3V, T
A
= 25°C
V
PFD
Power-fail-detect voltage
4.0
4.17
4.35
V
I
RCL
Input current when RCL = V
SS
.
-
-
185
μ
A
Internal 30K pull-up
I
MOTH
Input current when MOT = V
CC
-
-
-185
μ
A
Internal 30K pull-down
Input current when MOT = V
SS
-
-
0
μ
A
Internal 30K pull-down
I
XTRAM
Input current when EXTRAM =
V
CC
-
-
-185
μ
A
Internal 30K pull-down
Input current when EXTRAM =
V
SS
-
-
0
μ
A
Internal 30K pull-down
Note:
Typical values indicate operation at T
A
= 25°C, V
CC
= 5V or V
BC
= 3V.
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