PCF8573
Overview
- Serial input/output days and months
- Additional pulse outputs for seconds and minutes
- Alarm register for presetting a time for alarm or remote switching functions
- On-chip power fail detector
- Separate ground pin for the clock allows easy implementation of battery back-up during supply interruption
- Crystal oscillator control (32.768 kHz)
- Low power consumption. 3 QUICK REFERENCE DATA SYMBOL VDD - VSS1 VDD - VSS2 fosc 4 PARAMETER supply voltage, clock (pin 16 to pin 15) supply voltage, I2C-bus (pin 16 to pin 8) crystal oscillator frequency ORDERING INFORMATION The PCF8573 is a low threshold, CMOS circuit that functions as a
