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    HT2820

    Abstract: 32725 C 32725 3 machine gun sound generator HT2820E Bell Sound Generator circuit diagram door bell ic HT2821A tone generator ic CMOS LSI two sound generator
    Text: HT2821 Dual Sound Generator Features • • • • • • • • Single power supply: 2.4V~3.3V Low standby current: 1µA Typ. at VDD=3V Auto power-off function Two sections triggered by 2 input keys Built-in envelope control circuit Minimum external components


    Original     		PDF HT2821 HT2821 HT2821A HT2820 32725 C 32725 3 machine gun sound generator HT2820E Bell Sound Generator circuit diagram door bell ic tone generator ic CMOS LSI two sound generator

    ht2820

    Abstract: door bell UM IC holtek sound gen HT282 3 machine gun sound generator
    Text: HOLTEK r r HT2821 Dual Sound Generator Features • • • • • • • • Single power supply: 2.4V~3.3V Low stan db y current: l|iA Typ. a t V dd =3V Auto power-off function Two sections triggered by 2 in pu t keys Built-in envelope control circuit


    OCR Scan     		PDF HT2821 T2821 HT2821A 100ft 128kHz HT2820E HT2821 560kQ HT2821E ht2820 door bell UM IC holtek sound gen HT282 3 machine gun sound generator

    TRANSISTOR C 32725 w

    Abstract: ht2820 OSC21 100C HT2821 HT2821A circuit of piezo in LED flash door bell ic C 32725 transistor 8050
    Text: HOLTEK r r HT2821 Dual Sound Generator Features • • • • • • • • Single power supply: 2.4V~3.3V Low stan db y current: l|iA Typ. a t V dd =3V Auto power-off function Two sections triggered by 2 in pu t keys Built-in envelope control circuit


    OCR Scan     		PDF HT2821 HT2821 HT2821A 128kHz HT2820E TRANSISTOR C 32725 w ht2820 OSC21 100C HT2821A circuit of piezo in LED flash door bell ic C 32725 transistor 8050