SM1155

The CF(SM)1155 series are CMOS melody LSIs that, together with a battery and piezoelectric buzzer generate sound. An oscillator stop function in non-play mode and a variable pull-down resistance function reduce power consumption and extend battery life, making them ideal in a wide range of applications including the hold sound for telephones, greeting cards and toys, as well as white goods

Datasheets

PDFSM1155.pdf

Key Features

  • 1.2~3.6 Supply Voltage
  • 0.05 mA (typ) current consumption
  • 1 melody
  • Monotone sound generation
  • Requires few external components
  • Oscillator stop function in non-play mode
  • Package: SOP-8
  • Chip form

Applications

  • Gift Cards
  • Toys
  • Industrial alerts/event notification

Benefits

  • Low cost
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  1. SM1155AAM1V
    SM1155AAM1V

    Starting at $0.41

  2. SM1155AAN1V
    SM1155AAN1V
    $0.73
  3. SM1155AAP1V
    SM1155AAP1V
    $0.73
  4. SM1155AAQ1V
    SM1155AAQ1V
    $0.73
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