Datasheet Details
| Part number | HT812D0 |
|---|---|
| Manufacturer | Holtek Semiconductor Inc |
| File Size | 614.20 KB |
| Description | 2.8 Second LOG-PCM Speech |
| Datasheet |
 HT812D0 Datasheet
|
|
|
General Description
The HT812D0 is a single chip LOG-PCM voice synthesizer LSI with 2.8-second voice capacity at 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.
Key Features
- Operating voltage: 2.4V~5.0V Directly drives an external transistor Low standby current (1µA Typ. for VDD=3V) Minimal external components 124 words table ROM for key functions Programmable silence length and end-pulse width (minimal end-pulse width is 330µs at a 6kHz sampling rate) 2.8-second voice capacity Controllable volume FLAG1 options:.
- End-pulse output.
- 3Hz flash.