STM32G431CBU6 - 170MHz Cortex-M4 MCU 128KB Flash | STMicroelectronics
MPN: STM32G431CBU6 ✓ Hoạt độngSTM32G431CBU6 Tóm tắt
Mainstream microcontrollers (MCUs) such as the STM32G4 family sit in the 32-bit Cortex-M tier between low-power Cortex-M0/M0+ devices and high-performance Cortex-M7 parts. The G4 sub-family is optimized for mixed-signal real-time control: where M0+ targets simple battery-driven sensing, and M7 targets graphics-rich gateways, the G4 adds high-resolution timers, fast comparators and a math accelerator to drive power-conversion loops with deterministic latency. This positions the G4 in the system hierarchy as: Cortex-M4 MCU -> mainstream MCU -> microcontroller -> embedded IC -> semiconductor.
Key features include a 170 MHz core delivering 213 DMIPS, an Adaptive Real-Time (ART) accelerator for zero-wait-state Flash execution, 213 DMIPS performance, 128 KB Flash with ECC, 32 KB SRAM, and 4 KB CCM-SRAM for time-critical routines. Peripherals include USB Type-C Power Delivery 3.0, CAN 2.0B, three I2C, four USART/UART, three SPI, and an FDCAN interface. The integrated CORDIC and FMAC accelerators offload trigonometric and digital-filter math, reducing CPU load in field-oriented motor control loops. The operating voltage range is 1.71 V to 3.6 V and the part is qualified to -40 C to +85 C (grade 6 suffix) or -40 C to +105 C depending on order code.
Typical applications include field-oriented control (FOC) of PMSM and BLDC motors, digital switched-mode power supplies (digital SMPS), LED lighting drivers, photovoltaic micro-inverters, wireless chargers, and industrial PLC modules. The combination of fast ADCs, comparators and op-amps enables single-chip current/voltage sensing with hardware over-current protection, eliminating external analog front-ends in many power topologies.
When designing with this part, route the analog supply (VDDA) and reference (VREF+) pins through ferrite beads and decouple them with 100 nF plus 1 uF ceramic capacitors placed within 5 mm of the pins. The math accelerator reduces the FOC loop time from ~3 us to ~1 us compared with software-only implementations, freeing CPU bandwidth for housekeeping and communications.
Bộ thay thế dễ dàng lắp đặt cho STM32G431CBU6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32G431CBU6 (cùng hình factor và footprint) — khác nhau ở Package, Core, SRAM, ADC, Flash Memory.
STM32G431CBT6
✅ Drop-In✗ Hết hàng
$3.9773 / Đơn vị
Xem tài liệu →STM32G441CBU6
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32G431CBU7
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32G431RBT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32G030F6P6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32G431CBU6 Tỷ lệ tối đa & tính chất điện
| Core | Arm Cortex-M4F with FPU and DSP instructions |
| Tần số xung maksimum | 170 MHz |
| CoreMark / DMIPS | 213 DMIPS |
| Program Memory (Flash) | 128 KB |
| SRAM | 32 KB (plus 4 KB CCM-SRAM) |
| Operating Voltage Range | 1.71 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C (grade 6) |
| Hộp | 48-pin UFQFPN (7x7 mm) |
| ADC | 3 x 12-bit, up to 5 Msps |
| DAC | 4 x 12-bit |
| Op-Amps | 4 internal |
| Comparators | 4 internal |
| Math Accelerator | CORDIC + FMAC hardware |
| Communication Interfaces | USB Type-C PD 3.0, FDCAN, 3x I2C, 4x USART, 3x SPI |
| Timers | Advanced-control timers, HRTIM |
| RoHS Compliance | ROHS3 Compliant |
| MSL (Moisture Sensitivity Level) | MSL 3 |
| REACH Compliance | REACH Compliant |
Cấu hình chân STM32G431CBU6
| Chân 1 | PB11 — GPIO B11 / HRTIM_CHF1 / TIM2_CH4 |
| Chân 2 | PB10 — GPIO B10 / HRTIM_CHE1 / I2C2_SCL |
| Chân 3 | PB1 — GPIO B1 / ADC1_IN12 / COMP3_INP / OPAMP3_VINP |
| Chân 4 | PB0 — GPIO B0 / ADC1_IN15 / OPAMP3_VINP / HRTIM_SCIN |
| Chân 5 | PA0 — GPIO A0 / ADC1_IN1 / COMP1_INP / OPAMP1_VINP |
| Chân 6 | PA1 — GPIO A1 / ADC1_IN2 / COMP1_INP / OPAMP1_VINM |
| Chân 7 | PA2 — GPIO A2 / ADC1_IN3 / USART2_TX / OPAMP1_VOUT |
| Chân 8 | VDD — Digital supply 1.71-3.6 V |
| Chân 9 | VSS — Digital ground |
| Chân 10 | PA3 — GPIO A3 / ADC1_IN4 / USART2_RX / OPAMP1_VINP |
| Chân 11 | PA4 — GPIO A4 / ADC2_IN1 / DAC1_OUT1 / SPI1_NSS |
| Chân 12 | PA5 — GPIO A5 / ADC2_IN2 / DAC1_OUT2 / OPAMP3_VINP |
| Chân 13 | PA6 — GPIO A6 / ADC2_IN3 / OPAMP2_VINP / SPI1_MISO |
| Chân 14 | PA7 — GPIO A7 / ADC2_IN4 / OPAMP2_VINM / SPI1_MOSI |
| Chân 15 | PB2 — GPIO B2 / ADC1_IN18 / LPTIM1_OUT / SPI1_SCK |
| Chân 16 | VDDA — Analog supply 1.62-3.6 V |
| Chân 17 | VREF+ — ADC/DAC/OpAmp reference voltage (typ. VDDA) |
| Chân 18 | VREF- — Analog reference ground (tie to VSSA) |
| Chân 19 | PB12 — GPIO B12 / I2C2_SDA / TIM1_BKIN |
| Chân 20 | PB13 — GPIO B13 / SPI2_SCK / TIM1_CH1N |
| Chân 21 | PB14 — GPIO B14 / SPI2_MISO / TIM1_CH2N |
| Chân 22 | PB15 — GPIO B15 / SPI2_MOSI / TIM1_CH3N |
| Chân 23 | PA8 — GPIO A8 / TIM1_CH1 / MCO |
| Chân 24 | PA9 — GPIO A9 / TIM1_CH2 / USART1_TX / I2C1_SCL |
| Chân 25 | PA10 — GPIO A10 / TIM1_CH3 / USART1_RX / I2C1_SDA |
| Chân 26 | PA11 — GPIO A11 / USB_DM / CAN1_RX / TIM1_CH4 |
| Chân 27 | PA12 — GPIO A12 / USB_DP / CAN1_TX / TIM1_ETR |
| Chân 28 | PA13 — GPIO A13 / SWDIO |
| Chân 29 | VSS — Digital ground |
| Chân 30 | VDD — Digital supply 1.71-3.6 V |
| Chân 31 | PA14 — GPIO A14 / SWCLK |
| Chân 32 | PA15 — GPIO A15 / TIM2_CH1 / SPI1_NSS |
| Chân 33 | PB3 — GPIO B3 / TIM2_CH2 / SPI1_SCK / SWO |
| Chân 34 | PB4 — GPIO B4 / TIM3_CH1 / SPI1_MISO |
| Chân 35 | PB5 — GPIO B5 / TIM3_CH2 / SPI1_MOSI / I2C1_SMBA |
| Chân 36 | PB6 — GPIO B6 / USART1_TX / I2C1_SCL / TIM4_CH1 |
| Chân 37 | PB7 — GPIO B7 / USART1_RX / I2C1_SDA / TIM4_CH2 |
| Chân 38 | BOOT0 — Boot mode select (0=Flash, 1=System memory bootloader) |
| Chân 39 | PB8 — GPIO B8 / TIM4_CH3 / I2C1_SCL / CAN1_RX |
| Chân 40 | PB9 — GPIO B9 / TIM4_CH4 / I2C1_SDA / CAN1_TX |
| Chân 41 | VSS — Digital ground |
| Chân 42 | VDD — Digital supply 1.71-3.6 V |
| Chân 43 | PC13 — GPIO C13 / TAMP_IN1 / WKUP2 (TC tamper / wakeup) |
| Chân 44 | PC14 — GPIO C14 / LSE oscillator in (32.768 kHz crystal) |
| Chân 45 | PC15 — GPIO C15 / LSE oscillator out (32.768 kHz crystal) |
| Chân 46 | VSSA — Analog ground (tie to VSS) |
| Chân 47 | NRST — Active-low reset (drive low to reset) |
| Chân 48 | EP — Exposed pad / die attach paddle - must be soldered to PCB ground |
Ứng dụng tiêu biểu
STM32G431CBU6 phù hợp cho 6 Áp dụngs: Field-Oriented Motor Control (PMSM / BLDC), Digital Switched-Mode Power Supply (SMPS), Solar Micro-Inverter and Optimizer, Wireless Charging Transmitter (Qi / WPC), Industrial PLC Mixed-Signal Module, High-Density LED Lighting Driver.
Field-Oriented Motor Control (PMSM / BLDC)
The STM32G431CBU6 is purpose-built for field-oriented control of PMSM and BLDC motors. Its 170 MHz Cortex-M4F executes the FOC algorithm in under 2 microseconds when paired with the on-chip CORDIC accelerator, while three synchronized 12-bit ADCs at 5 Msps sample phase currents at the PWM switching instant for sub-percent torque ripple. The four internal op-amps condition shunt-resistor signals without an external analog front-end, and the four comparators enable hardware over-current protection with <100 ns response time. With 128 KB Flash and 32 KB SRAM it runs the full motor-control library (MCSDK 6.x) plus a USB-PD or CAN stack, making it a single-chip solution for industrial servo, e-bike and drone ESC designs up to 5 kW.
Được đề xuất
Digital Switched-Mode Power Supply (SMPS)
In digital SMPS designs the STM32G431CBU6 closes the voltage and current loops digitally using its high-resolution timer (184 ps PWM resolution) and fast 12-bit ADC. The hardware CORDIC and FMAC handle the Park transform and digital compensator math, freeing CPU cycles for housekeeping, telemetry and PMBus/CAN-FD communications. ST's STEVAL-DIGPFC-1 reference design implements a 1 kW totem-pole PFC at 100 kHz switching on a G431-class part, achieving >99 percent efficiency and THD below 3 percent. The 48-pin UFQFPN-48 package fits compact 1U server PSU form factors while exposing four op-amps for current sensing and four DACs for reference trimming.
Được đề xuất
Solar Micro-Inverter and Optimizer
The STM32G431CBU6 is used in photovoltaic micro-inverters and module-level power optimizers where it implements MPPT, anti-islanding and grid synchronization in firmware. Its 128 KB Flash holds a full C2000-style control loop plus a Modbus RTU or Sunspec stack, while the 32 KB SRAM buffers ADC sample streams for synchronous DSP processing. The integrated comparators provide sub-microsecond grid-voltage zero-crossing detection for anti-islanding compliance per IEEE 1547, and the four op-amps condition DC-bus and AC-line currents from LEM-style transducers. Operative from 1.71 V to 3.6 V and -40 C to +85 C, the part tolerates outdoor inverter enclosures in most climate zones.
Được đề xuất
Wireless Charging Transmitter (Qi / WPC)
Inductive and resonant wireless-charging transmitters use the STM32G431CBU6 to drive an LCOH or LCLC tank at 100-205 kHz while performing foreign-object detection (FOD) on the receiver-side telemetry. The HRTIM generates the precise PWM with hardware dead-time insertion and adaptive frequency modulation required by the Qi 1.3 / 2.0 specifications, while the four DACs and op-amps condition the resonant-capacitor voltage and current sense signals. CORDIC acceleration enables fast Fourier analysis of the demodulated FSK signal between power transfers, ensuring robust bi-directional communication without dropping the regulated output. The 7x7 mm UFQFPN-48 footprint enables a 50 mm diameter transmitter pad design.
Được đề xuất
Industrial PLC Mixed-Signal Module
Compact industrial PLCs and remote I/O modules use the STM32G431CBU6 to condition and digitize analog sensor signals, perform on-module control loops and bridge to the fieldbus. The three 12-bit ADCs at 5 Msps handle multi-channel thermocouple, RTD and 4-20 mA current-loop inputs, while the four 12-bit DACs drive analog outputs for valve-positioning and actuator control. Hardware CORDIC accelerates math used in PID and auto-tuning algorithms, and the FDCAN interface connects to CANopen or DeviceNet networks at 1 Mbaud. The 1.71 V to 3.6 V supply and industrial -40 to +85 C operating range satisfy IEC 61131-2 environmental requirements for factory-floor deployment.
Được đề xuất
High-Density LED Lighting Driver
Architectural and stage-lighting LED drivers leverage the STM32G431CBU6 to drive multi-channel constant-current PWM outputs with 16-bit dimming resolution and zero-crossing dimmer compatibility for hobbyist drivers. The HRTIM generates complementary PWM pairs with programmable dead-time and phase-shift for full-bridge LLC resonant topologies, while the four op-amps close the average-current control loop on each channel. The 4 KB CCM-SRAM holds time-critical dimming code so the main 32 KB SRAM can run DMX-512 / RDM / Art-Net / sACN stacks simultaneously - in high-density stage-light fixtures this avoids a separate protocol coprocessor.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32G431CBU6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM32G431CBT6 | STM32G441CBU6 | STM32G431CBU7 | STM32G431RBT6 | STM32G030F6P6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | UFQFPN-48 (7x7 mm) | LQFP-48 (7x7 mm) - footprint change | UFQFPN-48 (7x7 mm) - same | UFQFPN-48 (7x7 mm) - same | LQFP-64 (10x10 mm) - footprint change | TSSOP-20 - footprint change |
| Core | Cortex-M4F @ 170 MHz | Cortex-M4F @ 170 MHz - same | Cortex-M4F @ 170 MHz - same | Cortex-M4F @ 170 MHz - same | Cortex-M4F @ 170 MHz - same | Cortex-M0+ @ 64 MHz - downgraded |
| Flash | 128 KB | 128 KB - same | 128 KB - same | 128 KB - same | 128 KB - same | 32 KB - downgraded (-75%) |
| SRAM | 32 KB + 4 KB CCM | 32 KB + 4 KB CCM - same | 32 KB + 4 KB CCM - same | 32 KB + 4 KB CCM - same | 32 KB + 4 KB CCM - same | 8 KB - downgraded (-75%) |
| Operating Voltage | 1.71 V to 3.6 V | 1.71 V to 3.6 V - same | 1.71 V to 3.6 V - same | 1.71 V to 3.6 V - same | 1.71 V to 3.6 V - same | 2.0 V to 3.6 V - similar |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C - same | -40 C to +85 C - same | -40 C to +105 C - extended | -40 C to +85 C - same | -40 C to +85 C - same |
| 12-bit ADC | 3 x 12-bit (5 Msps) | 3 x 12-bit (5 Msps) - same | 3 x 12-bit (5 Msps) - same | 3 x 12-bit (5 Msps) - same | 3 x 12-bit (5 Msps) - same | 1 x 12-bit (2 Msps) - downgraded |
| Math Accelerator | CORDIC + FMAC | CORDIC + FMAC - same | CORDIC + FMAC - same | CORDIC + FMAC - same | CORDIC + FMAC - same | None - removed |
Bảo phân biệt quan trọng
- Hardware CORDIC + FMAC math accelerator versus software-only on Cortex-M0+ (vsSTM32G030F6P6)
- Three synchronized 5 Msps 12-bit ADCs versus single 2 Msps ADC on cost-down MCUs (vsSTM32G030F6P6)
- USB Type-C Power Delivery 3.0 with integrated PHY versus external transceiver (vsSTM32G030F6P6)
- Higher-resolution HRTIM (16-bit, 184 ps) versus standard 16-bit timer in G0 family (vsSTM32G030F6P6)
Ghi chú thiết kế
Estimated: The STM32G431CBU6 VDD core current at 170 MHz with all peripherals enabled is approximately 60 mA (per datasheet typical IDD graph). When deriving the 3.3 V rail from a 5 V supply, plan a 100 mA headroom and use a 4.7 uF X7R bypass on each VDD pin pair. Place a ferrite bead between VDD and VDDA to isolate switching noise from the analog domain, with separate 100 nF + 1 uF decoupling within 5 mm of each analog supply pin.
Estimated: The UFQFPN-48 EP (exposed pad, pin 48) must be soldered to a continuous PCB ground pour with at least 8 thermal vias (0.3 mm drill, 0.5 mm pitch) on a 4-layer board to keep theta_JA below 35 C/W. Route all four VSS pins to the same ground plane as the EP, and never split the ground under the package - this causes high di/dt currents to flow through the analog ground and degrades ADC SNR by ~5 dB.
Estimated: The three ADC1/ADC2 analog inputs are multiplexed on PA0-PA7 and PB0-PB2. Route these traces as matched-length pairs from each current shunt to within 0.5 mm length mismatch, and guard them with a ground trace on each side. Avoid running PWM traces (HRTIM_CH1, HRTIM_CH2, TIM1_CHx) parallel to the analog input traces within 3 mm to minimize capacitive coupling that would otherwise show as ADC sampling noise.
Common pitfalls: (1) Failing to populate the 32.768 kHz LSE crystal on PC14/PC15 if RTC is required - the internal LSI drift of 1 percent/day is too high for calendar applications. (2) Driving BOOT0 high during reset to enter bootloader, but forgetting to release it after programming - many bricked parts result from a floating BOOT0 that drifts high in humid environments. (3) Using the USB DP/DM pins without a common-mode choke and ESD protection - the STM32G431 internal USB PHY lacks IEC 61000-4-2 immunity.
Thông tin tuân thủ
ROHS3 compliant (Directive 2015/863) and REACH compliant (EC 1907/2006) per ST product page and Mouser/DigiKey listings. MSL 3 rating per JEDEC J-STD-020. Not AEC-Q100 qualified - choose STM32G474 family with 'Y' or 'Q' suffix for automotive applications. Lead-free UFQFPN-48 package uses NiPdAu lead-finish.
