HT81R18
Overview
The EasyVoiceTM is a single-chip voice synthesizer LSI . The chip when triggered drives a speaker directly or through an external transistor with a PWM output.
- Operating voltage: 2.4V~5V
- Directly drives an external transistor
- PWM function directly driver speaker
- Low standby current (1mA typ. for VDD=3V)
- Minimal external components
- 240 notes table ROM for key functions
- Programmable silence length and end-pulse width (minimal end-pulse width is 1.3ms at 8kHz sampling rate)
- Controllable volume
- FLAG1 options - End-pulse output - 3Hz, 3HzB flash - 6Hz, 6HzB flash - Busy output - OFF
- FLAG2 options - 3Hz flash - 6Hz flash - Busy output - OFF
