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UM66T68L Datasheet Simple Melody Generator

Manufacturer: UMC

Overview: ; =_=_amcm___----‘_= F z-d @. UM66T Series Simple Melody Generator.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The UM66T series is a CMOS LSI designed for use in door bells, telephones and toy applications.

It is an on-chip ROM programmed for musical performance.

Produced by CMOS technology, the device results in very low power consumption.

Key Features

  • n 62-note ROM memory n 1.3V to 3.3V operating voltage and low power con- sumption n Dynamic speaker can be driven with an external NPN transistor. n OSC. resistor is built- in n One-shot mode or level-hold mode can be selected n Power on reset; melody begins from the first note n Direct piezo drive. General.

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