HT49RA1/HT49CA1 -- Remote Type 8-Bit MCU with LCD

General Description

The HT49RA1/HT49CA1 is a Remote Type 8-bit MCU 8-bit high performance RISC architecture microcontroller. With its internal carrier generator and LCD Driver functions the device is is especially suitable for multiple I/O remote control product applications. The usual Holtek MCU features such as power down and wake-up functions, oscillator options, etc. combine to
ensure user applications require a minimum of external components.

The benefits of low power consumption, high performance, I/O flexibility and low-cost, provide these devices with the versatility to suit a wide range of application possibilities such as industrial control, consumer products and particularly suitable for use in products such as infrared LCD remote controllers and various, subsystem controllers, etc.

Features

  • Operating voltage: 2.0V~3.6V
  • 12 bidirectional I/O lines, 8 input lines, 8 segment output, PC0 (input/output)/REM
  • Two external interrupt inputs shared with an I/O line
  • 8-bit programmable Timer/Event Counter with overflow interrupt function
  • Single 16-bit programmable timer/event counter with overflow interrupt function
  • RC oscillator and 32768Hz crystal oscillator
  • LCD driver with 33x2, 33x3 or 32x4 segments (C type only), 8 logical output option for SEG12~SEG19 and 4 I/O port option for SEG0~SEG3 by changing LCDC register
  • 4096x15 program memory
  • 160x8 data memory
  • Real Time Clock -- RTC
  • 8-bit prescaler for RTC
  • One carrier output (1/2 or 1/3 duty)
  • Software LCD, RTC control
  • Watchdog Timer function
  • Power down and wake-up functions to reduce power consumption
  • Up to 1us instruction cycle with 4MHz system clock
  • 4-level subroutine nesting
  • Bit manipulation instruction
  • Table read instructions
  • 63 powerful instructions
  • All instructions executed in one or two machine cycles
  • Low voltage reset/detector function
  • 52-pin QFP, 64-pin LQFP packages

Technical Document

Other Information