HT49R50A-1/HT49C50-1/HT49C50L -- LCD Type 8-Bit MCU

General Description

The HT49R50A-1/HT49C50-1/HT49C50L are 8-bit, high performance, RISC architecture microcontroller devices specifically designed for a wide range of LCD applications. The mask version HT49C50-1 and HT49C50L are fully pin and functionally compatible with the OTP version HT49R50A-1 device. The HT49C50L is a low voltage version, with the ability to operate at a minimum power supply of 1.2V, making it suitable for single cell battery applications.

The advantages of low power consumption, I/O flexibility, programmable frequency divider, timer functions, oscillator options, HALT 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 for HT49R50A-1/HT49C50-1
    fSYS= 8MHz: 3.3V~5.5V for HT49R50A-1/HT49C50-1
    fSYS= 500kHz: 1.2V~2.2V for HT49C50L
  • 8 input lines
  • 12 bidirectional I/O lines
  • Two external interrupt input
  • Two 8-bit programmable timer/event counter with PFD (programmable frequency divider) function
  • LCD driver with 33x2, 33x3 or 32x4 segments
  • 4Kx15 program memory
  • 160x8 data memory RAM
  • Real Time Clock (RTC)
  • 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 consumption
  • 6-level subroutine nesting
  • Bit manipulation instruction
  • 15-bit table read instruction
  • Up to 0.5us instruction cycle with 8MHz system clock for HT49R50A-1/HT49C50-1
  • Up to 8us instruction cycle with 500kHz system clock for HT49C50L
  • 63 powerful instructions
  • All instructions in 1 or 2 machine cycles
  • Low voltage reset/detector function for HT49R50A-1/HT49C50-1
  • 48-pin SSOP, 100-pin QFP package

Technical Document

Other Information