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| 型号： | DS12R887 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | RTC with Constant-Voltage Trickle Charger |
| 中文描述： | 带有恒压涓流充电器的RTC |
| 文件页数： | 2/22页 |
| 文件大小： | 1093K |
| 代理商： | DS12R887 |
D
RTC with Constant-Voltage Trickle Charger
2
_____________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Voltage Range on V
CC
Pin Relative to Ground.....-0.3V to +6.0V
Operating Temperature Range ...........................-40°C to +85°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Storage Temperature Range.............................-55°C to +125°C
Soldering Temperature.......................................See IPC/JEDEC
J-STD-020A Specification
Soldering Temperature (leads, 10s)................................+260°C
DC ELECTRICAL CHARACTERISTICS
(
V
CC
= V
CC(MIN)
to V
CC(MAX)
, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
2.97
4.5
TYP
3.3
5.0
MAX
3.63
5.5
UNITS
-33
-5
Supply Voltage (Note 2)
V
CC
V
V
BACKUP
Input Voltage
(DS12R885 Only)
V
BACKUP
(Note 2)
2.0
V
OUT
V
Input Logic 1
V
IH
(Note 2)
2.2
V
CC
+
0.3
V
Input Logic 0
V
IL
(Note 2)
-33
-5
-5
-33
-0.3
+0.8
2
2
0.5
0.3
+1.0
+1.0
+500
V
0.7
0.8
0.250
0.140
V
CC
Power-Supply Current
(Note 3)
I
CC1
mA
V
CC
Standby Current (Note 4)
I
CCS
mA
Input Leakage
I/O Leakage
Input Current
Output Current at 2.4V
Output Current at 0.4V
I
IL
I
OL
I
MOT
I
OH
I
OL
-1.0
-1.0
-1.0
-1.0
μA
μA
μA
mA
mA
(Note 5)
(Note 6)
(Note 2)
(Note 2)
-33
-5
-33
-5
4.0
2.97
4.5
2.7
4.05
2.88
4.33
Power-Fail Voltage (Note 2)
V
PF
V
VRT Trip Point
VRT
TRIP
1.3
V
Trickle-Charger Current-Limiting
Resistor
R1
DS12R885 Only
10
k
Trickle-Charger Output Voltage
V
OUT
DS12R885 Only
3.05
V
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