HT46R221 Datasheet (PDF) Download
Holtek Semiconductor
HT46R221

Description

The device is an 8-bit high performance RISC-like microcontroller designed for multiple I/O product applications. It is particularly suitable for use in products such as washing machine controllers and home appliances.

Key Features

  • Operating voltage
  • 19 bidirectional I/O lines (max.)
  • 1 interrupt input shared with an I/O line
  • 8-bit programmable timer/event counter with over- at VDD=5V
  • 6-level subroutine nesting
  • 8 channels 9-bit resolution (8-bit accuracy) A/D con- verter
  • 1-channel (6+2)/(7+1)-bit PWM output shared with flow interrupt and 7-stage prescaler
  • On-chip crystal and RC oscillator
  • Watchdog Timer
  • 2048´14 program memory ROM