HT86A72 Key Features
- HT86AXX Operating voltage: 2.0V~5.5V
- Four 8-bit programmable Timer with overflow
- System clock: 4MHz~8MHz
- Crystal and RC system oscillator
- 40 I/O pins
- 8K´16-bit Program Memory
- 384´8-bit Data Memory
- 768/1536K-bit voice ROM size
- 36/72 sec voice length
- External interrupt input