My Inquiry
My Account
STMicroelectronics STM32G431CBU6TR
- Part No.:
- STM32G431CBU6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32G431CBU6TR.pdf
- Description:
- IC MCU 32BIT 128KB FLSH 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:1,887
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32G431CBU6TR from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, operating up to 170 MHz (213 DMIPS), featuring 128 KB Flash with ECC, 32 KB SRAM (22 KB + 10 KB CCM), and integrated analog peripherals including dual 12-bit DACs (1 MSPS buffered), dual 12-bit ADCs (0.25 µs conversion), 3 op-amps, 4 comparators, and CORDIC/FMAC math accelerators - deployed in motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G431CBU6TR datasheet, STM32G431CBU6TR pinout, STM32G431CBU6TR application, or STM32G431CBU6TR equivalent, key selection criteria include its 48-pin UFQFPN package, FDCAN support, USB Full-Speed + UCPD interface, low-power timer with sub-microsecond resolution, and hardware-accelerated trigonometric filtering for real-time control loops.
Technical Context
The STM32G431CBU6TR implements a tightly coupled Arm Cortex-M4 core with FPU and Adaptive Real-Time (ART) accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its interconnect matrix routes 14 timers-including two 16-bit advanced motor-control timers with dead-time generation and emergency stop-to peripherals without bus contention.
Analog subsystem integration includes dual independent 12-bit ADCs (up to 23 channels, hardware oversampling), four rail-to-rail comparators with window mode, three fully accessible op-amps configurable as programmable gain amplifiers, and a VREFBUF supporting 2.048 V / 2.5 V / 2.9 V reference outputs - all synchronized via shared trigger routing and DMA request multiplexing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 170 MHz max frequency (213 DMIPS), MPU, DSP instructions |
| Memory | 128 KB Flash with ECC & PCROP; 22 KB SRAM + 10 KB CCM-SRAM (parity-checked) |
| Analog Peripherals | Dual 12-bit ADCs (0.25 µs, 23 ch); 4× 12-bit DACs (2 buffered @ 1 MSPS, 2 unbuffered @ 15 MSPS) |
| Math Acceleration | CORDIC engine for sin/cos/tan/atan/sqrt/log; FMAC for FIR/IIR filter computation |
| Timers | 14 timers: 2× advanced motor-control (TIM1/TIM8), 1× 32-bit general-purpose, 7× 16-bit general/basic, 1× LPTIM, 2× watchdogs |
| Communication | FDCAN (flexible data-rate), 4× USART/UART, 3× I²C (Fast Mode Plus), 3× SPI, USB 2.0 FS + UCPD, SAI, LPUART |
| Package | UFQFPN48 (7 × 7 mm, 0.5 mm pitch), 48-pin surface-mount, RoHS-compliant |
Pinout & Package
STM32G431CBU6TR uses the UFQFPN48 (7 × 7 mm) package with exposed thermal pad, rated for industrial temperature range (–40 °C to +85 °C). Pin count and layout conform to ST's standardized UFQFPN48 footprint per datasheet section 4.3 and package drawing document PM0297.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog supply | 1.71–3.6 V operation; separate analog domain enables noise-isolated ADC/DAC performance |
| VSS, VSSA | Ground reference | Dedicated analog ground pins reduce coupling noise into sensitive analog circuits |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD2, PF0–PF1 | General-purpose I/O | Up to 86 fast I/Os; multiple pins support 5 V tolerance, external interrupts, and remappable alternate functions |
| NRST | Reset input | Active-low reset with internal pull-up; supports programmable voltage detector (PVD) monitoring |
| BOOT0 | Boot mode select | High at power-on selects system memory bootloader; used for field firmware recovery |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB 2.0 transceivers with built-in termination and suspend detection |
| PA13/PA14 | SWDIO/SWCLK | Serial Wire Debug interface - minimal 2-pin debug access without JTAG overhead |
| PA9/PA10 | USART1 TX/RX | Default UART interface for bootloader, console logging, or host communication |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Real-Time Accelerator (ART) | Enables 0-wait-state Flash execution at 170 MHz, eliminating cache misses in deterministic real-time code |
| CORDIC + FMAC co-processors | Offloads trigonometric and filtering computations from CPU, reducing latency in motor FOC or power factor correction |
| Dual independent 12-bit ADCs | Simultaneous sampling across up to 23 channels with hardware oversampling to 16-bit effective resolution |
| Three fully accessible op-amps | Configurable as PGA (gain 1–100), transimpedance amplifier, or comparator input stage - no hidden internal routing |
| FDCAN controller | Supports CAN FD frames up to 5 Mbps with flexible data-rate arbitration and payload length extension |
| UCPD interface | Integrated USB Type-C™ Power Delivery controller with CC line monitoring, VCONN switching, and policy engine |
Applications
| Motor Control System | Digital Power Supply |
|---|---|
Use Scenario: Field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC blowers or industrial pumps. IC Role / Device Role / Timing Role: Main controller executing PWM generation, current sensing (via dual ADCs), position estimation (CORDIC), and closed-loop regulation. Use Value: Integrated advanced timers with dead-time insertion and emergency stop prevent shoot-through; FMAC accelerates Clarke/Park transforms in <1 µs. | Use Scenario: Isolated AC/DC or DC/DC converter with adaptive voltage regulation and fault protection. IC Role / Device Role / Timing Role: Digital power controller managing gate drive timing, voltage/current loop compensation, and safety-critical shutdown sequencing. Use Value: Dual 12-bit DACs generate precise reference voltages for error amplifiers; 4 comparators enable cycle-by-cycle overcurrent detection with <100 ns response. |
| Industrial Sensor Node | USB-C Enabled Peripheral |
Use Scenario: Multi-sensor edge node measuring temperature, pressure, and vibration using analog front-end conditioning. IC Role / Device Role / Timing Role: Signal acquisition hub with simultaneous ADC sampling, op-amp signal conditioning, and low-power RTC-triggered wake-up. Use Value: Three op-amps condition sensor signals on-chip; VREFBUF provides stable 2.5 V reference for ratiometric measurements; standby current <1.5 µA extends battery life. | Use Scenario: Smart peripheral (e.g., docking station, monitor hub) requiring USB-C connectivity with power negotiation and data tunneling. IC Role / Device Role / Timing Role: USB Type-C port controller handling CC logic, VBUS monitoring, and policy engine coordination with host MCU. Use Value: Integrated UCPD peripheral eliminates external USB-C controller IC; supports USB PD 3.0 sink/source roles and vendor-defined messages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G431KBU6 | LQFP32 package (32-pin), reduced I/O count (25 GPIO), same core/peripherals but no UCPD or SAI | Suitable for space-constrained cost-sensitive designs lacking USB-C or audio interfaces | Select when board layout requires smaller footprint and USB-C/SAI are unused |
| STM32G474RET6 | LQFP64 package, 512 KB Flash, 128 KB SRAM, additional crypto engine and octal SPI interface | Targeted at secure firmware updates, OTA bootloading, and high-bandwidth sensor fusion | Choose when larger memory, AES/SHA acceleration, or XIP from external flash is required |
Compared with STM32G431KBU6, the STM32G431CBU6TR offers 48-pin routing flexibility and full UCPD/SAI support; versus STM32G474RET6, it trades memory and crypto features for lower BOM cost and optimized analog integration in compact motor/power designs.
Availability
STM32G431CBU6TR is available at Aetrix Electronics and suitable for motor control, digital power conversion, industrial sensing, and USB-C peripheral design requiring stable component supply across production lifecycles.
Supply support for STM32G431CBU6TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STM32G4 series targets real-time control applications demanding high analog integration, mathematical acceleration, and robust communication - specifically engineered for digital power, motor drives, and smart sensing edge nodes.
FAQ
What is the maximum operating frequency and associated performance metric of the STM32G431CBU6TR?
The STM32G431CBU6TR operates at up to 170 MHz with an integer performance rating of 213 DMIPS (Dhrystone MIPS), verified under conditions of zero-wait-state Flash execution enabled by the ART Accelerator. Its FPU supports IEEE 754 single-precision operations, and the MPU enforces memory protection for RTOS-based applications.
Does the STM32G431CBU6TR support USB Type-C Power Delivery, and what interfaces are required?
Yes, the STM32G431CBU6TR integrates a dedicated USB Type-C™ and Power Delivery (UCPD) controller compliant with USB PD 3.0. It requires only external CC1/CC2 resistors and VCONN switch circuitry - no external PD controller IC - and supports sink/source roles, vendor-defined messages, and fast role swap via hardware policy engine.
How many analog-to-digital converters does the STM32G431CBU6TR include, and what are their key timing specifications?
The device includes two independent 12-bit ADCs, each capable of 0.25 µs conversion time (4 MSPS sampling rate) across up to 23 channels. Both support hardware oversampling (up to 8x) for 16-bit effective resolution, simultaneous sampling triggered by advanced timers, and direct DMA transfer to SRAM or CCM memory without CPU intervention.
What low-power modes are available, and what is the typical current draw in standby mode?
The STM32G431CBU6TR supports Sleep, Stop, Standby, and Shutdown modes. In Standby mode with RTC running and backup registers retained, typical current consumption is 0.8 µA at 25 °C (VDD = 3.3 V), per datasheet Table 31. Wake-up latency from Standby is <10 µs via EXTI or RTC alarm event.
STM32G431CBU6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-UFQFN Exposed Pad
- Series:
- STM32G4
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit
- Speed:
- 170MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 42
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 18x12b SAR; D/A 4x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G431CBU6TR FAQ
1.How can I place an order for STM32G431CBU6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G431CBU6TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32G431CBU6TR reliable?
The price and inventory of STM32G431CBU6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G431CBU6TR is usually 5 days.
3.What payment methods are accepted for STM32G431CBU6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G431CBU6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G431CBU6TR?
STM32G431CBU6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G431CBU6TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32G431CBU6TR?
For technical support, including STM32G431CBU6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G431CBU6TR requirements.
6.How does Aetrix verify that STM32G431CBU6TR is sourced from the original manufacturer or authorized distributors?
All STM32G431CBU6TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32G431CBU6TR meets industry standards.
7.What is the process for return or replacement of STM32G431CBU6TR?
All STM32G431CBU6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32G431CBU6TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32G431CBU6TR part is unused and in its original packaging.
Return procedure for STM32G431CBU6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32G431CBU6TR Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
