HT1381A Description
The HT1380A/HT1381A is a serial timekeeper IC which provides seconds, minutes, hours, day, date, month and year information. The number of days in each month and leap years are automatically adjusted. The HT1380A/HT1381A is designed for low power consumption and can operate in two modes:.
HT1381A Key Features
- Operating voltage: 2.0V~5.5V
- Maximum input serial clock: 500kHz at VDD=2V
- Operating current
- less than 0.5μA at 2V -- less than 0.7μA at 3V -- less than 1.0μA at 5V
- Two data transmission modes: single-byte, or burst mode
- Serial I/O transmission
- All registers store BCD format
- HT1380A: 8-pin DIP package HT1381A: 8-pin SOP package