DS1685/DS1687 3V/5V Real-Time Clocks
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground………………………………………………………………….0.3V to +6V
Operating Temperature Range, Commercial ...……………………………………………………………….0°C to +70°C
Operating Temperature Range, Industrial…………………………………………………………………...-40°C to +85°C
Storage Temperature Range………………………………………………………………………………….-40°C to +85°C
Soldering Temperature, leads, 10 seconds (max).……………………………………………………..260°C (DIP, EDIP)
Soldering Temperature…………………………………………………………...…See IPC/JEDEC J-STD-020 (Note 12)
This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operation
sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time can affect reliability.
RECOMMENDED DC OPERATING CONDITIONS
(TA = 0°C to +70°C, TA = -40°C to +85°C.)
PARAMETER
SYMBOL
VCC
MIN
4.5
2.7
2.2
TYP
5.0
MAX
5.5
UNITS
NOTES
(-5)
(-3)
Power-Supply
V
V
V
1
1
1
Voltage
3.0
3.7
Input Logic 1
VIH
VCC + 0.3
5.5
PWR
IRQ
Pullup Voltage
VPUPWR
V
CC + 0.2
Input Logic 0
VIL
-0.3
2.5
2.5
2.5
0.6
V
V
1
1
Battery Voltage
VBAT
3.7
(-5)
(-3)
5.2
Auxiliary Battery
Voltage
VBAUX
V
1
3.7
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DALLAS [ DALLAS SEMICONDUCTOR ]
