HT819D0 Datasheet (Holtek Semiconductor Inc)

HT819D0, 4.2 Second LOG-PCM Speech

The HT819D0 is a single chip LOG-PCM voice synthesizer LSI with 4.2-second voice capacity at a 6kHz sampling rate.

The chip when triggered drives a speaker through an external transistor with a current switch D/A converter output.

Negligible current will be consumed in the standby state.

The HT819D0

HT819D0 Features

* Operating voltage: 2.4V~5.0V Directly drives an external transistor Low standby current (1µA typ. for VDD=3V) Minimal external components 252 words table ROM for key functions Programmable silence length and