HT49CV9 Key Features
- Operating voltage
- 8-bit prescaler for RTC
- Watchdog Timer
- Buzzer output
- On-chip crystal, RC and 32768Hz crystal oscillator
- HALT function and wake-up feature reduce power
- 32 bidirectional I/O lines (PA, PB, PC, PD)
- Two external interrupt inputs
- 16-level subroutine nesting
- 8-channel 10-bit resolution A/D converter