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1812B - SINGLE SOUND GENERATOR

Download the 1812B datasheet PDF. This datasheet also covers the 1812A variant, as both devices belong to the same single sound generator family and are provided as variant models within a single manufacturer datasheet.

General Description

The UTC 1812A/1812B/1813 is a CMOS LSI chip designed for use in sound effect products .It is equipped with tone circuit, noise circuit and other control logic to generate different sounds including rifle gun, machine gun, booming sound, door bell, alarm etc.

Key Features

  • S.
  • Single power supply: 2.4~3.3V.
  • Low standby current at 3V, 1μA typ.
  • Auto power-off function.
  • Speaker or direct piezo.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (1812A_UTC.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Unisonic Technologies

Part Number Description
1812A SINGLE SOUND GENERATOR
1813 SINGLE SOUND GENERATOR

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
UNISONIC TECHNOLOGIES CO., LTD 1812A/1812B/1813 SINGLE SOUND GENERATOR  DESCRIPTION The UTC 1812A/1812B/1813 is a CMOS LSI chip designed for use in sound effect products .It is equipped with tone circuit, noise circuit and other control logic to generate different sounds including rifle gun, machine gun, booming sound, door bell, alarm etc. The customer supplied sound source can be analyzed and programmed into an internal ROM by changing a mask layer during device fabrication. The UTC 1812A/1812B/1813 is suitable for various toy applications.  FEATURES *Single power supply: 2.4~3.3V *Low standby current at 3V, 1μA typ *Auto power-off function *Speaker or direct piezo.