DS1385 Datasheet, PDF (11/20 Pages) Dallas Semiconductor – RAMified Real Time Clock 4K x 8

DS1385/DS1387
ABSOLUTE MAXIMUM RATINGS*
Voltage on any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
–0.3V to +7.0V
0°C to 70°C
DS1387: –40°C to +70°C
DS1385: –55°C to +125°C
260°C for 10 seconds
* This is a stress rating only and functional operation of the device at these or any other conditions above those
indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods of time may affect reliability.
RECOMMENDED DC OPERATING CONDITIONS
PARAMETER
SYMBOL MIN
Power Supply Voltage
V_CC
4.5
Input Logic 1
V_IH
2.2
Input Logic 0
V_IL
–0.3
Battery Voltage
V_BAT
2.5
(0°C to 70°C)
TYP
MAX
UNITS NOTES
5.0
5.5
V
1
V_CC+0.3
V
1
+0.8
V
1
3.7
V
9
DC ELECTRICAL CHARACTERISTICS
(0°C to 70°C)
PARAMETER
SYMBOL MIN
TYP
MAX
UNITS NOTES
Power Supply Current
I_CC1
35
50
mA
2
Standby Current CS, OER and
I_CC2
WER = V_CC –0.3 volt
1
5.0
mA
6
Input Leakage
I_IL
–1.0
+1.0
µA
3
I/O Leakage
I_LO
–1.0
+1.0
µA
3
Output @ 2.4 volts
I_OH
–1.0
mA
1, 4
Output @ 0.4 volts
I_OL
2.0
mA
1
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