Datasheet Details
| Part number | HT1380 |
|---|---|
| Manufacturer | Holtek Semiconductor Inc |
| File Size | 120.11 KB |
| Description | Serial Timekeeper Chip |
| Datasheet |
 HT1380 Datasheet
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General Description
The HT1380/HT1381 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.
Key Features
- Operating voltage: 2.0V~5.5V.
- Maximum input serial clock: 500kHz at VDD=2V, 2MHz at VDD=5V.
- Operating current: less than 1mA at 2V, less than 1.2mA at 5V.
- TTL compatible - VIH: 2.0V~VDD+0.3V at VDD=5V - VIL: -0.3V~+0.8V at VDD=5V.