PT7C4300

Storage Temperature..................................65 to +150
Ambient Temperature with Power Applied  .......................-40 to +85
Supply Voltage to Ground Potential (Vcc to GND) ....................0.3V to +6.5V
DC Input (All Other Inputs except Vcc & GND) ...................-0.3V to (V_cc+0.3V)
DC Output Voltage (SDA, /INTA, /INTB pins)  ......................-0.3V to +6.5V
Power Dissipation  ...........................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.

The PT7C4300 serial real-time clock is a low-power clock/calendar with a programmable square-wave output.

Address and data are transferred serially via a 2-wire bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in the 24- hour format indicator.

Table 1 shows the basic functions of PT7C4300. More details are shown in section: overview of functions.