The STMicroelectronics STM32G431CBU6 is a high-performance mixed-signal 32-bit microcontroller based on the Arm Cortex-M4 core, running at up to 170MHz and delivering up to approximately 213 DMIPS. It integrates a single-precision FPU, DSP instructions, MPU, ART Accelerator, and dedicated CORDIC and FMAC mathematical accelerators, making it well suited for motor control, digital power, industrial control, and real-time signal-processing applications. ST currently lists the exact STM32G431CBU6 as Active.
The device integrates 128KB of Flash memory and 32KB of SRAM. The SRAM consists of 22KB general-purpose SRAM plus 10KB CCM SRAM connected to the instruction and data buses for high-speed execution. Flash features include ECC, proprietary code readout protection, a securable memory area, and 1KB of OTP memory. The device operates from 1.71V to 3.6V.
Its rich analog subsystem includes two 12-bit ADCs operating at up to 4Msps, hardware oversampling for up to 16-bit effective resolution, four 12-bit DAC channels, four high-speed rail-to-rail comparators, and three integrated operational amplifiers that can also operate in PGA mode.
Communication peripherals include three I²C interfaces, three SPIs, two I²S interfaces, three USARTs, one UART, one LPUART, FDCAN, SAI, USB 2.0 Full-Speed, and a USB Type-C / USB Power Delivery controller. Two advanced 16-bit motor-control timers, multiple general-purpose timers, a 12-channel DMA controller, RNG, RTC, and CRC are also integrated.
The exact STM32G431CBU6 uses a 48-pin UFQFPN package measuring 7 × 7 × 0.55mm. The “6” temperature grade specifies -40°C to +85°C ambient operation at maximum dissipation, with a maximum junction temperature of 105°C. ST lists this exact non-TR order code with tray packaging, Industrial grade, ECOPACK2 compliance, and Active status.
Key Features:
- Manufacturer: STMicroelectronics
- Part Number: STM32G431CBU6
- Family: STM32G431 / STM32G4
- Core: Arm Cortex-M4
- CPU Frequency: Up to 170MHz
- Performance: Up to 213 DMIPS
- Single-Precision FPU
- DSP Instructions
- Flash Memory: 128KB with ECC
- SRAM: 32KB Total
- General SRAM: 22KB
- CCM SRAM: 10KB
- OTP Memory: 1KB
- Supply Voltage: 1.71V to 3.6V
- Math Accelerators: CORDIC and FMAC
- ADC: 2 × 12-bit, up to 4Msps
- Hardware Oversampling: Up to 16-bit Effective Resolution
- DAC: 4 × 12-bit Channels
- Comparators: 4
- Integrated Op Amps: 3
- DMA: 12 Channels
- I²C: 3
- SPI: 3
- I²S: 2
- USART: 3
- UART: 1
- LPUART: 1
- FDCAN: 1
- SAI: 1
- USB 2.0 Full-Speed Device
- USB Type-C / PD UCPD
- Advanced Motor-Control Timers: 2
- True RNG
- RTC and CRC
- Debug: SWD / JTAG
- Operating Temperature: -40°C to +85°C
- Package: UFQFPN48
- Package Size: 7 × 7 × 0.55mm
- Packing Type: Tray
- Grade: Industrial
- RoHS: ECOPACK2
- Product Status: Active.
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