10000 h timing circuit with minutes and seconds

Published:2011/12/1 20:56:00 Author:May | Keyword: 10000 h, timing, minutes and seconds | From:SeekIC

This circuit is electronic clock circuit. It can time to 10000h. It is supplied bybattery for liquid crystal display. Its power consumption is very small. The used IC is 5G5544 (clock generator generates pulse per second) , 5G7224A (60 system counting) , 5G7224 ( 10 system four digit counting) . The circuit uses crystal oscillation clock signal. Its time precision is high. The function of control switch is: K2 is time/ suspend , AN is time/ all zero reset .



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