BL5372 - Low-power real-time clock chip

SHANGHAI BELLING

Datasheet Details

Part number	BL5372
Manufacturer	SHANGHAI BELLING
File Size	503.66 KB
Description	Low-power real-time clock chip
Datasheet	BL5372_SHANGHAIBELLING.pdf

The BL5372 is a CMOS type real-time clock, which is connected to the CPU via two wires and capable of serial transmission of clock to the CPU.

Lowest supply current: 400nA TYP. @ 5V.
Connected to the CPU via only 2-wires (MAX. 100KHz).
A clock counter (counting hours, minutes, and seconds) and a calendar counter (counting leap years, years, months, days, and days of the week) in BCD codes.
Two systems output providing interrupt to the CPU output (period of one month to one second, interrupt halt function).
Two systems output of alarm functions.
Oscillation halt sensing to judge internal data validity.

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Published: Dec 19, 2006 |