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PT7C4302 Datasheet, PDF (11/16 Pages) Pericom Semiconductor Corporation – Real-time Clock Module (3-wire Interface)
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Data Sheet
PT7C4302
Real-time Clock Module (3-wire Interface)
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• RAM Burst Mode
The RAM command byte specifies burst mode operation. In this mode, the 31 RAM registers can be consecutively read or written
starting with bit 0 of address 0.
Note: PT7C4302 use 94H, 96H as test mode address. Customer should not use the address.
Maximum Ratings
StorageTemperature.......................................................................................................................-65oCto +150oC
AmbientTemperaturewithPowerApplied...........................................................................-40oCto +85oC
Supply Voltage to Ground Potential (Vcc to GND) ..........................................................-0.3V to +6.5V
DC Input (All Other Inputs except Vcc & GND)................................................................-0.3V to +6.5V
DC Output Voltage(SDA,/INTA, /INTB pins)..................................................................-0.3Vto +6.5V
PowerDissipation............................................................................................................................320mW (Depend on package)
Note:
Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Recommended Operating Conditions
Symbol
Description
VCC1,VCC2
VIH
VIL
TA
Power voltage. VCC = VCC2, when VCC2 > VCC1 + 0.2;
VCC = VCC1, when VCC1 > VCC2.
Input high level
Input low level
Operating temperature
Min Type Max Unit
2
-
5.5
V
2
-
VCC+0.3
-0.3
-
0.3
-40
-
85
ºC
PT0225(11/05)
11
Ver: 0
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