
DS17285/DS17287/DS17485/DS17487/DS17885/DS17887
Real-Time Clocks
2
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ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(VCC = +4.5V to +5.5V, or VCC = +2.7V to +3.7V, TA = Over the operating temperature range, unless otherwise noted. Typical
values are with TA = +25°C, VCC = 5.0V or 3.0V and VBAT = 3.0V, unless otherwise noted.) (Note 2)
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.
Voltage Range on VCC Pin Relative to Ground ....-0.3V to +6.0V
Operating Temperature Range (Noncondensing)
Commercial.........................................................0°C to +70°C
Industrial ..........................................................-40°C to +85°C
Storage Temperature Range
EDIP .................................................................-40°C to +85°C
PDIP, SO, TSOP.............................................-55°C to +125°C
Lead Temperature (soldering, 10s) .................................+260°C
(Note: EDIP is hand or wave-soldered only.)
Soldering Temperature (reflow) .......................................+260°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
(-5)
4.5
5.0
5.5
Supply Voltage (Note 3)
VCC
(-3)
2.7
3.0
3.7
V
VBAT Input Voltage
VBAT
(Note 3)
2.5
3.0
3.7
V
(-5)
2.5
3.0
5.2
VBAUX Input Voltage (Note 3)
VBAUX
(-3)
3.7
V
(-5)
2.2
VCC +
0.3
Input Logic 1 (Note 3)
VIH
(-3)
2.0
VCC +
0.3
V
(-5)
-0.3
+0.8
Input Logic 0 (Note 3)
VIL
(-3)
-0.3
+0.6
V
(-5)
25
50
VCC Power-Supply Current
(Note 4)
ICC1
(-3)
15
30
mA
(-5)
1.0
3.0
VCC Standby Current (Notes 4, 5)
ICCS
(-3)
0.5
2.0
mA
Input Leakage
IIL
-1.0
+1.0
A
I/O Leakage
IOL
(Note 6)
-1.0
+1.0
A
(-5), -1.0mA
2.4
Output Logic 1 Voltage (Note 3)
VOH
(-3), -0.4mA
2.4
V
(-5), +2.1mA
0.4
Output Logic 0 Voltage
AD0–AD7, IRQ, SQW (Note 3)
VOL
(-3), +0.8mA
0.4
V
(-5), +10mA
0.4
Output Logic 0 Voltage
PWR (Note 3)
VOL
(-3), +4mA
0.4
V
(-5)
4.25
4.37
4.5
Power-Fail Voltage (Note 3)
VPF
(-3)
2.5
2.6
2.7
V
VRT Trip Point
VRTTRIP
(Note 3)
1.3
V