MassDuino MD-328D 8-bit Microcontroller with 32K bytes In-System Programmable Flash

 

Features

 

More Fast Timers

 

    Two 8bit Timer/Counter with independent prescaler
    One 16bit Timer/Counter with independent prescaler
    64MHz internal frequency for fast and high resolution PWM
    Up to 6 channels PWM with dead band support

 

More accuracy analog modules

 

    8-channel 12bit Analog to Digital Converter (ADC)
    Internal independent power monitor channel (VCC/4 )
    Internal High resolution 1.25V/2.56V ±1% voltage reference
    2x Analog comparator with 2x 8bit DAC for internal reference
    2x Fixed-gain, dual direction OPA frontend for ADC/AC
    2-channel 8bit DAC output

 

More other improvements

 

    High resolution internal 16MHz ±1% RC oscillator
    Low power 32KHz RC oscillator
    Low power POR and 3-level Low voltage detector

    More efficiency active and sleep power control

 

Digital Peripherals

 

    SWD Two-wire On Chip Debug & Programming Interface
    Programmable Watch dog timer
    Async/Sync Universal Receiver/Transmitter (USART)
    Master/Slave SPI Interface
    Master/Slave Two-wire Interface (TWI), compatible with I2C

 

More Robust Working Environment

 

    0~20MHz @ 1.8V ~ 5.5V
    -40C ~ +85C
    4000V HBM ESD

 

More useful analog modules

 

    Internal voltage reference for ADC and source of DAC
    8bit DAC output to one channel of Analog comparator
    Each OPA support up to 2 external input channels
    OPA support x12 gain in normal mode and x11 in input-inverting mode
    OPA output can be sampled by ADC
    Analog comparator support flexible filter backend
    Comparator output can be used to disable PWM output automatically
    AC combined with OPA can be used to implement flexible over-current and over-voltage circuits

 

More fast timer and PWM

 

    Internal frequency double generate 64MHz clock for fast timer application
    Up to 500KHz@7bit high resolution PWM
    Dead cycle inserted to protect external MOSFET driver
    PWM can be disabled automatically by analog comparator or other sources
    Up to 6 channel PWM output
    Up to 4 channel support fast PWM and dead cycle insertion