Description
The PT7C4300 serial real-time clock is a low-power clock/calendar with a programmable square-wave output.
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).
- Automatic power-fail detect and switch circuitry of battery backup Operating range: 2.0V to 5.5V Software clock calibration Ultra-low battery supply current of 1µA
Address and data are transferred serially via a 2-wire bidirectional bus. The clo.
PT7C4300 Datasheet
