{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32G431K6U6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32G431K6U6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32G431K6U6","factsUrl":"https://icboms.com/api/mcp/products/STM32G431K6U6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32G4 series, STM32G431K6U6, ARM Cortex-M4, 32-Bit Single-Core, 170MHz, 32KB Flash, 32K x 8 RAM, CANbus/I²C/SPI/UART, 26 I/O, 1.71V~3.6V, -40°C~85°C, 32-UFQFN Exposed Pad.","salesMarkdown":"## 170 MHz Cortex-M4 with analog-rich peripheral set What distinguishes this part from a plain M0+ or M3 core is the hardware DSP and single-precision FPU, which let you run a PID filter or a Clarke/Park transform without bit-banging the math in software. ## 11 ADC channels, 4 DAC channels — analog BOM shrink The data-converter block integrates 11 analog inputs multiplexed into a 12-bit ADC and four independent 12-bit DAC outputs. For a three-phase motor drive you can sample two phase currents and the DC-link voltage on the same ADC, sequence the third phase through the remaining channel, and output a sine-wave reference via one of the DACs — all without an external ADC or DAC chip. The 12-bit resolution is adequate for 0.1% current sensing in most industrial servo drives. ## CANbus on the 32-pin package Despite the compact 32-UFQFN footprint (5x5 mm), the STM32G431K6U6 brings out a CANbus interface alongside I²C, SPI, two UART/USART, and LINbus. That means a single-chip node on a CANopen or J1939 network is feasible without an external CAN controller — the transceiver is still needed, but the protocol engine lives inside. The 26 GPIOs are enough for a few limit switches, an encoder input, and a status LED alongside the serial buses. ST continues to manufacture the STM32G4 series, and no end-of-life notice has been issued for this base part number.","metaTitle":"STM32G431K6U6 STMicroelectronics ARM Cortex-M4 MCU, 170 MHz","metaDescription":"STM32G431K6U6 32-bit MCU with ARM Cortex-M4 core at 170 MHz, 32 KB Flash, 32 KB SRAM, 11x12b ADC, 4x12b DAC, CANbus, -40 to 85°C.","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":"26","Core Processor":"ARM® Cortex®-M4","Package / Case":"32-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 11x12b; D/A 4x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32G431","Program Memory Size":"32KB (32K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"32-UFQFPN (5x5)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.2340","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e2974d2853df04b931426622fa2967b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does STM32G431K6U6 support CAN bus?","answer":"Yes. The connectivity block includes CANbus, so the MCU can interface directly with CAN networks (CAN 2.0 A/B) without an external CAN controller. An external transceiver is still required for the physical layer."},{"question":"Can I replace STM32G431K6U6 with STM32G431K6U3?","answer":"The STM32G431K6U3 is a variant within the same base part number family. The 'U3' suffix typically indicates a different package or temperature grade — verify the specific differences against your board's footprint and environmental requirements before substituting. No pinout or compatibility guarantee can be stated without the full datasheet cross-reference."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32G431K6U6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32G431K6U6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:32:37.028Z","lastPublished":"2026-07-16T12:32:37.028Z","indexable":true}}