{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32G431CBU6U","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32G431CBU6U","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32G431CBU6U","factsUrl":"https://icboms.com/api/mcp/products/STM32G431CBU6U","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32G4 series, ARM Cortex-M4F 32-bit MCU, 170MHz, 128KB Flash, 32K x 8 SRAM, 42 I/O, CANbus/I²C/SPI/UART, 18x12b ADC, 4x12b DAC, 48-UFQFPN, -40°C to 85°C.","salesMarkdown":"## 170 MHz Cortex-M4F with FPU — real-time control loop headroom The STM32G431CBU6U: The 170 MHz Cortex-M4F with FPU provides headroom for real-time control loops. ## Analog front-end: 18-channel ADC and quad DAC for mixed-signal control Eighteen 12-bit ADC channels and four 12-bit DAC channels are integrated on-chip. That many ADC channels cover three-phase motor current sensing plus a couple of auxiliary inputs (bus voltage, temperature) without needing an external mux. The four DACs can generate analog setpoints or bias references for external op-amps or comparators — handy in a digital power supply where you want to trim the reference on the fly. ## CANbus and LINbus — wired for automotive and industrial networks The CAN interface is the standard 2.0B controller — no external transceiver on the MCU, but the protocol engine is there for in-vehicle or factory-floor bus integration. LINbus covers the lower-cost sensor/actuator sub-bus in automotive body electronics. Housed in a 48-UFQFPN with exposed pad (7x7 mm), this is a surface-mount part. That makes it a safe choice for a production BOM line that will run for several years. If you need a second-source hedge, the STM32G431 family has several Flash and pin-count variants — the base product number is STM32G431, so the same peripheral set scales up or down in memory and I/O count.","metaTitle":"STM32G431CBU6U STM32G4 MCU, 170MHz Cortex-M4F, 128KB Flash","metaDescription":"STMicroelectronics STM32G431CBU6U 32-bit ARM Cortex-M4F MCU, 170MHz, 128KB Flash, 32K x 8 SRAM, 42 I/O, 48-UFQFPN, -40°C to 85°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"170MHz","Series":"STM32G4","Package":"Tray","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"42","Core Processor":"ARM® Cortex®-M4F","Package / Case":"48-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 18x12b; D/A 4x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32G431","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"48-UFQFPN (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.9801","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/88082d99dc99f94106e4989f731259ef.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32G431CBU6U/alternatives.json"},"ai":{"faq":[{"question":"Can STM32G431CBU6U be used for motor control?","answer":"Yes. The 170 MHz Cortex-M4F with FPU, 18-channel ADC, and CANbus interface make it well-suited for field-oriented control of BLDC and PMSM motors. The high-resolution timer peripherals (part of the STM32G4 family) support PWM generation with dead-time insertion, and the multiple ADC channels can sample phase currents simultaneously."},{"question":"What is the equivalent of STM32G431CBU6U?","answer":"Within the STM32G4 series, the STM32G431CBU6U is a specific Flash/RAM/package variant. Pin-compatible alternatives with different Flash sizes (e.g., 64 KB or 256 KB) exist in the same UFQFPN-48 footprint. For a second source outside ST, no direct pin-compatible drop-in exists from another vendor; the STM32G4 is a proprietary architecture."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32G431CBU6U","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32G431CBU6U when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}