HT46R72D-1A -- Dual Slope A/D Type MCU with LCD (Restricted Products)

General Description

The HT46R72D-1A is an 8-bit high performance, RISC architecture microcontroller device specifically designed for A/D with LCD applications that interface directly to analog signals, such as those from sensors. The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, Dual slope A/D converter, LCD display, HALT and wake-up functions, watchdog timer, as well as low cost, enhance the versatility of these devices to suit for a wide range of AD with LCD application possibilities such as sensor signal processing, scales, consumer products, subsystem controllers, etc.

Features

  • Operating voltage:
    fSYS=4MHz: 2.2V~5.5V
    fSYS=8MHz: 3.3V~5.5V
  • 12 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 8-stage pre-scalar
  • LCD driver with 16x4, 17x3 or 17x2 segments
  • 2Kx15 program memory with partial lock function
  • 96x8 data memory RAM
  • Single differential input channel dual slope Analog to Digital Converter with Operational Amplifier.
  • Watchdog Timer with regulator power
  • Buzzer output
  • Internal 12kHz RC oscillator
  • On-chip RC or crystal 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 0.5us instruction cycle with 8MHz system clock at VDD=5V
  • 63 powerful instructions
  • All instructions in 1 or 2 machine cycles
  • Low voltage reset/detector function
  • 52-pin QFP package

Technical Document

Other Information