HT1380A
HT1380A is Serial Timekeeper Chip manufactured by Holtek Semiconductor.
HT1380A/HT1381A Serial Timekeeper Chip
Features
- Operating voltage: 2.0V~5.5V
- Maximum input serial clock: 500kHz at VDD=2V,
2MHz at VDD=5V
- Operating current:
- - less than 0.5μA at 2V
- - less than 0.7μA at 3V
- - less than 1.0μA at 5V
- TTL patible
- - VIH: 2.0V~VDD+0.3V at VDD=5V
- - VIL: 0.3V~+0.8V at VDD=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
Applications
- Microputer serial clock
- Clock and Calendar
General Description
The HT1380A/HT1381A is a serial timekeeper IC which provides seconds, minutes, hours, day, date, month and year...
