PT7C4307 Datasheet (Pericom Semiconductor)

PT7C4307, Real-time Clock Module

The PT7C4307 serial real-time clock is a low-power clock/calendar with a programmable square-wave output and 56 bytes of nonvolatile RAM. Address and data are transferred serially via a 2-wire, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year informa

PT7C4307 Features

* Using external 32.768kHz quartz crystal

* Supports I2C-Bus's high speed mode (400 kHz)

* Includes time (Hour/Minute/Second) and calendar (Year/Month/Date/Day) counter functions (BCD code)

* Programmable square wave output signal

* 56-byte, battery-backed, nonvolatile (NV) RAM f