Five-function electronic watch circuit

Published:2011/4/26 0:55:00 Author:Nicole | Keyword: electronic watch | From:SeekIC

This electronic watch circuit is composed of DG5001 and LCD display. DG5001 is single chip CMOS watch special IC, it is adapted to 3 1/2 bit LCD, it has the advantage of micropower (lower than 3μA), low voltage(1.5V), small timing error(0.5s/d). The show contents: month, day, hour(morning A/afternoon P), minute, second. The range of work voltage is 1.35~3.50V, the range of temperature is 0~70℃, storage temperature is -20~+75℃. Using two perpheral switches S1, S2 can change the show contents and check of the timing. The crystals oscillation frequency is 32768Hz, adjusting the Trimmer capacitor can check of the time precision.



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