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UPD4992

Part Number	UPD4992
Manufacturer	NEC
Description	8-Bit Parallel I/O Calendar Clock
Published	Apr 17, 2005
Detailed Description	PRELIMINARY DATA SHEET MOS INTEGRATED CIRCUIT µPD4992 8-Bit Parallel I/O Calendar Clock The µPD4992 is a CMOS integra...
Datasheet	UPD4992 PDF File

Overview

PRELIMINARY DATA SHEET MOS INTEGRATED CIRCUIT µPD4992 8-Bit Parallel I/O Calendar Clock The µPD4992 is a CMOS integrated circuit which outputs 8-bit parallel time and calendar data in a system in which a microprocessor is employed.
The µPD4992 operates at 32.
768 kHz and provides year, month, day of month, day of week, hour, minute, and second data to a system.
The µPD4992 internally contains a voltage regulator so that low power consumption operation and high accuracy are realized even if the supply voltage varies.
The µPD4992 uses the 8-bit bus to facilitate interfacing with a microprocessor.
FEATURES: • Internal counter for time (hour, minute, second), and calendar (leap year, year, mo...

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