HT46R71D -- Dual Slope A/D Type 8-Bit OTP MCU (Restricted Products)

General Description

The HT46R71D is an 8-bit, high performance, RISC architecture microcontroller device specifically designed for A/D product applications that interface directly to analog signals and which require an LCD Interface.

The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, multi-channel A/D Converter, LCD display, HALT and wake-up functions, in addition to a flexible and configurable LCD interface enhance the versatility of these devices to control a wide range of applications requiring analog signal processing and LCD interfacing, such as electronic metering, environmental monitoring, handheld measurement tools, motor driving, etc., for both industrial and home appliance application areas.

Features

  • Operating voltage:
    fSYS=4MHz: 2.2V~5.5V
  • 10 bidirectional I/O lines and two ADC input
  • One external interrupt input shard with an I/O lines
  • One 8-bit and one 16-bit programmable timer/event counter with overflow interrupt a 7-stage pre-scalar
  • LCD driver with 10x3 segments
  • 2Kx14 program memory
  • 32x8 data memory RAM
  • Single differential input channel dual slope Analog to Digital Converter with Operational Amplifier.
  • Watchdog Timer
  • Buzzer output
  • Internal 12kHz RC oscillator
  • RC oscillator
  • HALT function and wake-up feature reduce power consumption
  • Voltage regulator (3.3V) and charge pump
  • Embeded voltage reference generator (1.5V)
  • 4-level subroutine nesting
  • Bit manipulation instruction
  • 14-bit table read instruction
  • Up to 1ms instruction cycle with 4MHz system clock
  • 63 powerful instructions
  • All instructions in 1 or 2 machine cycles
  • Low voltage reset/detector function
  • 48-pin SSOP package

Technical Document

Other Information