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STM32G431C6T6

STM32G431C6T6

STM32G431C6U6

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Mainstream Arm Cortex-M4 MCU 170 MHz with 32 Kbytes of Flash memory, Math Accelerator, Medium Analog level integration

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Parameter NameParameter Value
Supply Voltage Min Volt1.71
Supply Voltage Max Volt3.6
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
CoreArm Cortex-M4
ECCN US3A991.a.2
ECCN EUNEC
Packing TypeTray
ROHS Compliance GradeEcopack2
GradeIndustrial
Package NameUFQFPN 48 7x7x0.55 mm

The STM32G431x6/x8/xB devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core. They operate at a frequency of up to 170 MHz.


The Cortex-M4 core features a single-precision floating-point unit (FPU), which supports all the Arm single-precision data-processing instructions and all the data types. It also implements a full set of DSP (digital signal processing) instructions and a memory protection unit (MPU) which enhances the application’s security.


These devices embed high-speed memories (128 Kbytes of Flash memory, and 32 Kbytes of SRAM), an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.


The devices also embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, securable memory area and proprietary code readout protection.


The devices embed peripherals allowing mathematical/arithmetic function acceleration (CORDIC for trigonometric functions and FMAC unit for filter functions).


They offer two fast 12-bit ADCs (5 Msps), four comparators, three operational amplifiers, four DAC channels (2 external and 2 internal), an internal voltage reference buffer, a low-power RTC, one general-purpose 32-bit timers, two 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and one 16-bit low-power timer.


They also feature standard and advanced communication interfaces such as:


- Three I2Cs


- Three SPIs multiplexed with two half duplex I2Ss


- Three USARTs, one UART and one low-power UART.


- One FDCAN


- One SAI


- USB device


- UCPD


The devices operate in the -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.


Some independent power supplies are supported including an analog independent supply input for ADC, DAC, OPAMPs and comparators. A VBAT input allows backup of the RTC and the registers.


The STM32G431x6/x8/xB family offers 9 packages from 32-pin to 100-pin.

Key features
  • Includes ST state-of-the-art patented technology
    • Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) allowing 0-wait-state execution from Flash memory, frequency up to 170 MHz with 213 DMIPS, MPU, DSP instructions
    • Operating conditions:
      • VDD, VDDA voltage range: 1.71 V to 3.6 V

    • Mathematical hardware accelerators
      • CORDIC for trigonometric functions acceleration

      • FMAC: filter mathematical accelerator

    • Memories
      • 128 Kbytes of Flash memory with ECC support, proprietary code readout protection (PCROP), securable memory area, 1 Kbyte OTP

      • 22 Kbytes of SRAM, with hardware parity check implemented on the first 16 Kbytes

      • Routine booster: 10 Kbytes of SRAM on instruction and data bus, with hardware parity check (CCM SRAM)

    • Reset and supply management
      • Power-on/power-down reset (POR/PDR/BOR)

      • Programmable voltage detector (PVD)

      • Low-power modes: sleep, stop, standby and shutdown

      • VBAT supply for RTC and backup registers

    • Clock management
      • 4 to 48 MHz crystal oscillator

      • 32 kHz oscillator with calibration

      • Internal 16 MHz RC with PLL option (± 1%)

      • Internal 32 kHz RC oscillator (± 5%)

    • Up to 86 fast I/Os
      • All mappable on external interrupt vectors

      • Several I/Os with 5 V tolerant capability

    • Interconnect matrix
    • 12-channel DMA controller
    • 2 x ADCs 0.25 µs (up to 23 channels). Resolution up to 16-bit with hardware oversampling, 0 to 3.6 V conve