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.

特性 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 0.2μs 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

? Flash program memory can be re-programmed yp to 100,000 times

? Flash program memory data retention > 10 years

? ICP (In-Circuit Programming) interface

? 28-pin SOP package