HT48R52A -- I/O Type 8-Bit OTP MCU with 16x16 High Current LED Driver

General Description

This device is an 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, 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=32768Hz: 2.2V~5.5V
    fSYS=4MHz: 2.2V~5.5V
    fSYS=8MHz: 3.3V~5.5V
  • 2k×14 Program memory ROM
  • 88×8 data memory RAM
  • 8 bidirectional I/O lines
  • Max. 16x16 LED driver output
  • 8 LED shared I/O lines
  • 24 LED shared output
  • One external interrupt input
  • One internal interrupt
  • 8 bit programmable timer/event counter
  • 4-level subroutine nesting
  • Watchdog Timer (WDT)
  • 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
  • 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
  • 44/52-pin QFP package

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