HT45FM03B -- Brushless DC Motor Flash Type 8-Bit MCU

General Description

The HT45FM03B is 8-bit, high performance, RISC architecture microcontroller device which includes a host of fully integrated special features specifically designed for brushless DC motor applications.

The advantages of low power consumption, I/O flexibility, programmable frequency divider, timer functions, oscillator options, multi-channel A/D Converter, Pulse Width Modulation function, power-down and wake-up functions, although especially directed at brushless DC motor applications, the enhanced versatility of this device also makes it applicable for use in a wide range of A/D application possibilities such as sensor signal processing, motor driving, industrial control, consumer products, subsystem controllers, etc.

Features

  • Operating voltage:
    fSYS= 0.4~20MHz: 4.5V~5.5V
  • 26 bidirectional I/O lines
  • External interrupt inputs shared with 4 I/O lines
  • 8-bit programmable Timer/Event Counter with overflow interrupt and 7-stage prescaler
  • 16-bit programmable Timer/Event Counter with overflow interrupt and 7-stage prescaler
  • 4096x15 Flash Program Memory
  • 192x8 Data Memory RAM
  • On-chip crystal, internal RC and external RC oscillator
  • Fully integrated internal RC oscillator with three fixed frequencies: 12MHz, 16MHz or 20MHz
  • Watchdog Timer function
  • PFD for audio frequency generation
  • Power down and wake-up functions to reduce power consumption
  • Up to 0.2us instruction cycle with 20MHz system clock at VDD=5V
  • 8-level subroutine nesting
  • 8 channel 12-bit resolution A/D converter
  • 3 pairs of 10-bit PWM with complementary outputs shared with six I/O lines and with 3 PWM duty control registers
  • Bit manipulation instruction
  • Table read instructions
  • 63 powerful instructions
  • All instructions in one or two machine cycles
  • Low voltage reset function
  • Low voltage detect function
  • Integrated operational Amplifier
  • Integrated Analog Comparator with interrupt function
  • 28-pin SOP package

Technical Document

Other Information