DS12C887 Datasheet, PDF (13/19 Pages) Dallas Semiconductor – Real Time Clock

ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
-0.3V to +7.0V
0° to 70°C
-40°C to +70°C
260°C for 10 seconds (See Note 7)
DS12C887
* 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
TYP
Power Supply Voltage
V_CC
4.5
5.0
Input Logic 1
V_IH
2.3
Input Logic 0
V_IL
-0.3
MAX
5.5
V_CC+0.3
0.8
(0°C to 70°C)
UNITS NOTES
V
1
V
1
V
1
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
Average V_CC Power Supply
I_CC1
Current
Input Leakage
I_IL
-1.0
I/O Leakage
I_OL
-1.0
Input Current
I_MOT
-1.0
Output @ 2.4V
I_OH
-1.0
Output @ 0.4V
Write Protect Voltage
I_OL
V_TP
4.0
(0°C to 70°C; VCC = 5.0V ± 10%)
TYP MAX UNITS NOTES
7
15
mA
2
+1.0
µA
3
+1.0
µA
4
+500
µA
3
mA
1,5
4.0
mA
1
4.25
4.5
V
CAPACITANCE
PARAMETER
Input Capacitance
Output Capacitance
SYMBOL
C_IN
C_OUT
MIN
(tA = 25°C)
TYP MAX UNITS NOTES
5
pF
7
pF
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