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HT1381A

Holtek Semiconductor
Part Number HT1381A
Manufacturer Holtek Semiconductor
Description Serial Timekeeper Chip
Published May 11, 2018
Detailed Description HT1380A/HT1381A Serial Timekeeper Chip Features • Operating voltage: 2.0V~5.5V • Maximum input serial clock: 500kHz a...
Datasheet PDF File HT1381A PDF File

HT1381A
HT1381A

Overview
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 compatible –– 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 • Microcomputer 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 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: one is the 12-hour mode with an AM/PM indicator, the other is the 24-hour mode.
The...


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