Smart Home Audio(325)

KM1M7BF Inverter Control Series

The KM1M7BF series, ideal for controlling power electronics, is a 32-bit Flash microcontroller featuring both high processing power and low power consumption, and incorporating the Arm® Cortex®-M7.

The device is equipped with a high-function PWM, high-speed, high-precision AD converter, and feedback control assist function, ideal for inverter control of brushless DC motors, and contributes to power electronics products that require high efficiency, low heat generation, and miniaturization.

Block Diagram


Outline Specifications

•Built-in Arm® Cortex ® -M7 core

  •12-bit A/D converter

  Single- and double-precision FPUs


  Minimum conversion time 0.5μs (2.0Msps)

•Clock frequency: 160 MHz

    3 units, 32 channels

•Internal memory


•Variable Gain Amplifier (VGA)

  Instruction Flash ROM: 512 KB


  5 units

  Flash ROM for data: 64 KB

  •Comparator: 5 units

  Instruction RAM: 64 KB


  Window/2 level/1 levell switchable

  RAM for data: 64 KB

  •Functional Safety

•DMA Controller: 2 units / 16 channels

    ROM/RAM ECC function



  Memory data protection function

  General-purpose 16-bit timer: 20 channels


  Register access protect function

  PWM for power control: 12 units / 24 channels


  Clock monitor function



  Window type WDT function

  Synchronous/IIC: 1 channel


  CRC operation function

  Synchronous/UART: 2 channels


  A/D converter Diagnostic function

  Synchronous/UART/LIN: 1 channel


  Supply voltage detection function

  Synchronous/UART/SPI: 3 channels


  Power-on reset function

  Synchronous/UART/data share: 1 channel


•Power supply voltage: 5V single power supply

  SM-Bus: 1 channel


•Operating temperature: Tc= -40 to 110°C

Reference Board


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