HT46R22/HT46C22 -- A/D Type 8-Bit MCU

General Description

The HT46R22/HT46C22 are 8-bit, high performance, RISC architecture microcontroller devices specifically designed for A/D applications that interface directly to analog signals, such as those from sensors. The mask version HT46C22 is fully pin and functionally compatible with the OTP version HT46R22 device.

The advantages of low power consumption, I/O flexibility, programmable frequency divider, timer functions, oscillator options, multi-channel A/D Converter, Pulse Width Modulation function, I2C interface, HALT and wake-up functions, enhance the versatility of these devices to suit a wide range of A/D application possibilities such as sensor signal processing, motor driving, industrial control, consumer products, subsystem controllers, etc.

Features

  • Operating voltage:
    fSYS=4MHz: 2.2V~5.5V
    fSYS=8MHz: 3.3V~5.5V
  • 19 bidirectional I/O lines (max.)
  • 1 interrupt input shared with an I/O line
  • 8-bit programmable timer/event counter with overflow interrupt and 7-stage prescaler
  • On-chip crystal and RC oscillator
  • Watchdog Timer
  • 2048x14 program memory
  • 64x8 data memory RAM
  • Supports PFD for sound generation
  • HALT function and wake-up feature reduce power consumption 
  • Up to 0.5us instruction cycle with 8MHz system clock at VDD=5V
  • 6-level subroutine nesting
  • 8 channels 9-bit resolution (8-bit accuracy) A/D converter
  • 1-channel (6+2)/(7+1)-bit PWM output shared with one I/O line
  • Bit manipulation instruction
  • 14-bit table read instruction
  • 63 powerful instructions
  • All instructions in one or two machine cycles
  • Low voltage reset function
  • I2C Bus (slave mode)
  • 24-pin SKDIP/SOP package

Technical Document

Other Information