{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32G431RBT6U","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32G431RBT6U","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32G431RBT6U","factsUrl":"https://icboms.com/api/mcp/products/STM32G431RBT6U","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32G4 series, STM32G431RBT6U, 32-Bit Single-Core ARM Cortex-M4F, 170 MHz, 128 KB Flash, 32K x 8 RAM, 52 I/O, CANbus/I²C/SPI/UART, 64-LQFP, -40°C to 85°C.","salesMarkdown":"That core speed and the single-cycle MAC with FPU make it a fit for time-critical mixed-signal loops — digital power-supply control, field-oriented motor control, and real-time sensor fusion where the math has to settle before the next PWM cycle. On-chip analog integration includes 23 channels of 12-bit ADC and four channels of 12-bit DAC, so a typical sensor-to-actuator path — read three phase currents, compute the Park/Clarke transform, update the timer compare registers — stays inside one package without external converters. Program memory is 128 KB of Flash, paired with 32 KB SRAM. That memory footprint covers mid-complexity firmware: a motor-control stack with field-weakening, a digital PFC loop, or a CANopen application stack with room for a bootloader. The 64-LQFP package (10x10 mm body) with 52 accessible I/O gives enough GPIO for a three-shunt inverter interface, encoder inputs, and a UART/CAN debug link without multiplexing conflicts. For a production BOM being qualified today, this part does not carry the obsolescence risk that drives a respin six months after launch. The base product number is STM32G431, which shares pin-compatibility across the STM32G4x1 value-line density options. If a design later needs more Flash or a different peripheral set, the migration path stays within the same 64-LQFP footprint without a board layout change.","metaTitle":"STM32G431RBT6U ARM Cortex-M4F MCU, 170 MHz, 128 KB Flash","metaDescription":"STMicroelectronics STM32G431RBT6U 32-bit MCU with ARM Cortex-M4F at 170 MHz, 128 KB Flash, 32 KB SRAM, 23-ch 12-bit ADC, 4-ch 12-bit DAC.","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":"52","Core Processor":"ARM® Cortex®-M4F","Package / Case":"64-LQFP","Product Status":"Active","Data Converters":"A/D 23x12b; 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":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$15.9600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/88082d99dc99f94106e4989f731259ef.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum clock speed of STM32G431RBT6U?","answer":"The maximum core clock speed is 170 MHz, driven by the ARM Cortex-M4F with hardware FPU for single-cycle multiply-accumulate operations."},{"question":"Does STM32G431RBT6U have a built-in DAC?","answer":"Yes, it integrates four channels of 12-bit DAC, alongside 23 channels of 12-bit ADC, for analog output without an external converter."},{"question":"Is STM32G431RBT6U compatible with STM32G431RBT6?","answer":"The STM32G431RBT6U shares the same base product number STM32G431 and the same 64-LQFP package as the STM32G431RBT6. The 'U' suffix typically indicates a different packing or temperature range variant — verify the specific ordering code against your BOM's required temperature grade and shipping medium before substitution."},{"question":"What are the typical applications for STM32G431RBT6U?","answer":"This MCU is designed for mixed-signal control applications: digital power supplies, motor drives with field-oriented control, industrial sensors, and CAN-based automation nodes where the 170 MHz Cortex-M4F handles real-time math and the on-chip ADCs/DACs close the analog loop."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32G431RBT6U","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32G431RBT6U when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:32:43.993Z","lastPublished":"2026-07-16T12:32:43.993Z","indexable":true}}