HT45FM03B Key Features
- Operating voltage: fSYS= 0.4~20MHz: 4.5V~5.5V
- 26 bidirectional I/O lines
- External interrupt inputs shared with 4 I/O lines
- 4096´15 Flash Program Memory
- 192´8 Data Memory RAM
- On-chip crystal, internal RC and external RC
- Fully integrated internal RC oscillator with three
- Watchdog Timer function
- PFD for audio frequency generation
- Power down and wake-up functions to reduce