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    产品名称:Brushless DC Motor MCU

    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
    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