HT48R52/HT48R53 -- A/D Type 8-Bit OTP MCU (Restricted Products)

General Description

These devices are 8-bit high performance, RISC architecture microcontroller specifically designed for multiple

I/O control product applications. The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, HALT and wake-up functions, watchdog timer, buzzer driver, as well as low cost, enhance the versatility of these devices to suit a wide range of application possibilities such as industrial control, consumer products, subsystem controllers, etc.

Features

  • Operating voltage:
    fSYS=4MHz: 2.2V~5.5V
    fSYS=8MHz: 3.3V~5.5V
  • Program memory:
    HT48R52: 2k×14
    HT48R53: 4k×15
  • 88×8 data memory
  • 40 bidirectional I/O lines
  • One External interrupt input
  • One Internal interrupt
  • 8 bit programmable timer/event counter
  • 4-level subroutine nesting
  • Watchdog Timer (WDT)
  • Buzzer output
  • Low voltage reset (LVR)
  • External RC and 32768Hz crystal oscillator
  • Dual clock system offers three operating modes
    - Normal mode: Both RC and 32768Hz clock active
    - Slow mode: 32768Hz clock only
    - Idle mode: Periodical wake-up by watchdog timer
      overflow
  • HALT function and wake-up feature reduce power consumption
  • 14-bit table read instructions for HT48R52
  • 15-bit table read instructions for HT48R53
  • 63 powerful instructions
  • One instruction cycle: 4 system clock periods
  • All instructions in 1 or 2 instruction cycles
  • Bit manipulation instructions
  • Up to 0.5µs instruction cycle with 8MHz system clock
  • 52-pin QFP package

Technical Document

Other Information