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120 seconds countdown music reminders circuit diagram
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Jan 06.2014, 10:42:00
The circuit adopts the LM - 4 d200 af must not be embedded microprocessor voice, music memory ROM, dedicated COMS integrated circuit, its working voltage from 5 v to 2.4 v, the static current is less than 5 mu A. LM - type 4 d200 af must not be circuit has 14 feet DIP encapsulation, COB and three DIX chip packaging form for users to choose.
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