HT1380A/HT1381A Serial Timekeeper Chip Features .
Holtek Semiconductor
HT1381A - Serial Timekeeper Chip
HT1380A/HT1381A Serial Timekeeper Chip Features • Operating voltage: 2.0V~5.5V • Maximum input serial clock: 500kHz at VDD=2V, 2MHz at VDD=5V • Op.