120 seconds countdown music reminder
Source: InternetPublisher:拳制龙 Updated: 2016/02/08
This circuit adopts the LM-4D200 type dedicated COMS integrated circuit containing microprocessor's voice and music memory ROM. Its operating voltage is 2.4~5V and the quiescent current is less than 5μA. The LM-4D200 circuit is available in three packaging forms: 14-pin DIP package, COB package and DIX chip for users to choose from. Latest Audio/Video Circuits Circuits
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