UPD78F9224 Description
U16898EJ6V0UD00 (6th edition) Date Published February 2009 NS © Printed in Japan 2003 CHAPTER 1 OVERVIEW 1.1.
UPD78F9224 Key Features
- High-speed system clock … Selected from the following three sources
- Ceramic/crystal resonator
- External clock
- High-speed internal oscillator: 8 MHz ±3% (-10 to +80°C)
- Low-speed internal oscillator 240 kHz (TYP.) … Watchdog timer, timer clock in intermittent operation
- 16-bit timer/event counter: 1 channel … Timer output × 1, capture input × 2
- 8-bit timer
- Watchdog timer
- Detection voltage: Selectable from ten levels between 2.35 and 4.3 V
- Flash self programming enabled