Smart Home Audio(325)

M031 Series

NuMicro® M031, M032 Series MCU M031FB0AE M031FC1AE M032FC1AE M031EB0AE M031EC1AE M032EC1AE M031TB0AE M031TC1AE M032TC1AE M031TD2AE M032TD2AE M031LC2AE M032LC2AE M031LD2AE M032LD2AE M031LE3AE M032LE3AE M031LG6AE M032LG6AE M031GE8AE M032GE8AE M031SC2AE M031SD2AE M031SE3AE M032SE3AE M031SG6AE M032SG6AE M031SG8AE M032SG8AE M031SIAAE M032SIAAE M031KG6AE M032KG6AE M031KG8AE M032KG8AE M031KIAAE M032KIAAE

Nuvoton NuMicro® M031 series is 32-bit microcontrollers based on Arm® Cortex®-M0 CPU with 32-bit hardware multiplier/divider. It features 1.8V ~ 3.6V operating voltage, 5V I/O tolerant, running up to 48/72 MHz within - 40~105 ℃ . 

M031 series provides a solution for the applications that need 1.8V low-voltage interface connection with enhanced fast 2 MSPS conversion rate 12-bit ADC , comparators and up-to 24-ch 96/144 MHz PWM control, providing a fast and precise data conversion for the voltage, current, and sensor data, then fast response control to the external device. Additionally, M031 series also provides plenty of peripherals included Universal Serial Control Interface ( USCI ) can be set as UART / SPI / I²C flexibly, up to 10 sets of UART , 4 sets of SPI , 4 set I²C , 1-wire UART interface for data communication between master and slave devices.

M031 series provides Flash size from 16 KB to 512 KB , SRAM size from 2 KB to 96 KB . Supported packages from small form factor TSSOP20, TSSOP28, QFN33, LQFP48 to LQFP 64 and LQFP128 with pin-compatible for different part number makes the system design and change parts easily.

All new M031 series products support the following advanced features.

  • Support single-wire UART half-duplex mode with bit rate up to 6 Mbps
  • Support UART(9600 bps) in power-down mode by Internal 38.4 kHz LIRC. Collaborate with 16 byte FIFO to support wake-up function (receiving up to 15 bytes in power-down mode)
  • Support High-speed SPI (1.8V~3.6V) with 4x32 byte FIFO & Tx / Rx PDMA function (Master mode 24MHz/ Slave mode 16MHz)
  • Pre-stored built-in bandgap voltage value. It can be used to estimate bandgap voltage value at any temperature between -40°C ~ +105°C. The voltage accuracy can be within 1%.
  • PWM input clock source can be from PLL (frequency up to 96/144 MHz). PWM frequency can be up to 375 kHz (at 96 MHz clock source). PWM supports capture mode & PDMA. Pulse count value can be directly stored into SRAM using PDMA function. Support to measure the minimum pulse width down to 0.5 us.

Part Numbers with M032 series are all based on M031 series and enhanced with crystal-less USB 2.0 full-speed device feature for USB related application.

For the development, Nuvoton provides the NuMaker evaluation boards and Nuvoton Nu-Link debugger. 3rd Party IDE is supported such as Keil MDK, IAR EWARM, Eclippse IDE with GNU GCC compilers etc.

Target Application:

  • Laser Distance Meter
  • Air Detector/Cleaner
  • Mobile LCD Panel Controller
  • IoT Sensing Device
  • Micro Printer
  • Gaming Keyboard and Mouse
  • WPC Wireless Charger


Key Features:

Operating Characteristics
  - Voltage range:  1.8V to 3.6V
  - Temperature range: - 40 ℃ ~ +105 ℃
  - EFT 4.4 kV
  - ESD HBM 6 kV
  - Arm® Cortex®-M0 running up to 48/72 MHz
  - 32-bit H/W multiplier/divider
  - Up to 512 KB Flash 
  - Up to 96 KB SRAM
  Up to 8 KB Flash for user program loader  ( LDROM )
  ISP / ICP / IAP programming
  - 512 bytes/2 KB SPROM ( Security Protection ROM )
  - Dual-Bank for Over-The-Air ( OTA ) upgrade
    ( For M031xI Series )
  - 4 to 32 MHz HXT crystal oscillator or external input clock
  - 32.768 kHz LXT crystal oscillator or external input clock for low-power system operation
  - Internal 48 MHz HIRC oscillator with variation ± 2 % within all temperature range
  - Internal 38.4 kHz LIRC for Low-power operating mode
  - One PLL up to 96/144 MHz for high speed module operation
Power management
  - Integrated with Power-on Reset, Brown-out Detect and Low Voltage Reset
  - Normal run: 180 μA/ MHz
  - Power-down: 12 μA
  - Support wake up from power-down mode by: ACMP, GPIO, WDT, TIMER, UART , USCI, I²C , SPI , WWDT, ADC , PDMA, PWM , USBD
  - Up to four 32-bit timers
  - 96/144 MHz 16-bit PWM ( Up to 24 channels )
  - One 24-bit SysTick timer
  - One Independent watchdog timer
  - One window watchdog timer
  - RTC with Calendar and Alarm
  - Up to 9 channels
  - Supports IEC60730 safety specifications
    (For M031xI/ M031xG Series )
  - CRC-CCITT, CRC-8, CRC-16 and CRC-32 polynomials
  - Up to 16 channels 12-bit 2 MSPS ADC
  - Two rail-to-rail comparators ( ACMP )
Communication interfaces
  - Up to 4-set of 6 MHz UART interfaces
  - Up to 4-set of  UART for simple Tx/Rx operation
  - 2-set of 1 MHz I²C interfaces
  - 1-set of 24 MHz SPI /I²S interface
  - Up to 1-set of Quad SPI
  - Up to 2-set of USCI interfaces that support  UART , SPI and I²C mode
  - Up to 1-set External Bus Interface ( EBI ) supports 8-/16-bit data with maximum external address space of 1M Bytes
  - Up to 111 GPIO ( except analog pins, Support 5V tolerant I/O )
96-bit Unique ID ( UID )
128-bit Unique Customer ID ( UCID )


This website uses cookies to ensure you get the best experience on our website. Learn more