False alarms produced by semiconductor failure are impossible with this burg]ar-alarm circuit … The data ready signal could be used to trigger a flip-flop to indicate the … Sound detected by eJectret microphone MICl is fed to ICl’s input through … oc1a. 81N. 4.5Mfl. Switch 18. MuC. Counter/Switch Phases. 6KHz. 200pF. OY.
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