HT49RU80/HT49CU80 -- LCD Type 8-Bit MCU

General Description

These devices are 8-bit, high performance, RISC architecture microcontrollers specifically designed for a wide range of LCD applications. The mask version, the HT49CU80, is fully pin and functionally compatible with the OTP version HT49RU80 device.

The advantages of low power consumption, I/O flexibility, programmable frequency divider, timer functions, oscillator options, power-down and wake-up functions and buzzer driver in addition to a flexible and configurable LCD interface, enhance the versatility of these devices to control a wide range of LCD-based application possibilities such as measuring scales, electronic multimeters, gas meters, timers, calculators, remote controllers and many other LCD-based industrial and home appliance applications.

Features

  • Operating voltage:
    fSYS=4MHz: 2.2V~5.5V
    fSYS=8MHz: 3.3V~5.5V
  • 8 input lines and 7 output lines
  • 16 bidirectional I/O lines
  • Two external interrupt inputs
  • One 8-bit and two 16-bit programmable timer/event
    counters with PFD - programmable frequency divider function
  • LCD driver with 48x2, 48x3 or 47x4 segments
  • 16Kx16 program memory
  • 576x8 data memory RAM
  • Real Time Clock - RTC
  • RTC 8-bit prescaler
  • Watchdog Timer
  • Buzzer output
  • On-chip crystal, RC and 32768Hz crystal oscillator
  • HALT function and wake-up feature reduce power
    consumption
  • 16-level subroutine nesting
  • UART - Universal Asynchronous Receiver Transmitter
  • Bit manipulation instruction
  • 16-bit table read instruction
  • Up to 0.5us instruction cycle with 8MHz system clock
  • 63 powerful instructions
  • All instructions executed within 1 or 2 machine cycles
  • Low voltage reset/detector functions
  • 64-pin LQFP and 100-pin QFP packages

Technical Document

Other Information