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    25 tune musical door bell

    Abstract: musical bell circuit diagram of door bell BUZZER PIEZO-ELECTRIC 1.5V musical door bell c5702 transistor musical door bell circuit 16 tune musical door bell transistor 571 DING DONG BELL
    Text: RCL Semiconductors Ltd. C57021 Melody Chip GENERAL DESCRIPTION The C57021 is a silicon-gate CMOS LSI for playing musical tune through an external piezo-electric buzzer. The melody can be customized by a ROM mask. Only a battery and a piezo-electric buzzer are


    OCR Scan     		PDF C57021 25 tune musical door bell musical bell circuit diagram of door bell BUZZER PIEZO-ELECTRIC 1.5V musical door bell c5702 transistor musical door bell circuit 16 tune musical door bell transistor 571 DING DONG BELL

    DING DONG BELL

    Abstract: musical bell melody chip 25 tune musical door bell christmas c5702 transistor fur elise musical door bell circuit 16 tune musical door bell C5702
    Text: RCL Semiconductors Ltd. Melody Chip with Envelope Tone_ C57021 GENERAL E DESCRIPTION The C57021E is a silicon-gate CMOS LSI for playing musical tune through an external piezo-electric buzzer or speaker. The m elody can be custom ized by a ROM mask. The chip is specially designed to


    OCR Scan     		PDF C57021E DING DONG BELL musical bell melody chip 25 tune musical door bell christmas c5702 transistor fur elise musical door bell circuit 16 tune musical door bell C5702