{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32G491KEU6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32G491KEU6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32G491KEU6","factsUrl":"https://icboms.com/api/mcp/products/STM32G491KEU6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32G491KEU6, STM32G4 series, 32-bit ARM Cortex-M4F MCU, 170MHz, 512KB Flash, 112K x 8 SRAM, 11x12b ADC, 4x12b DAC, 26 I/O, 1.71V–3.6V, -40°C to 85°C, 32-UFQFN exposed pad.","salesMarkdown":"## 170 MHz Cortex-M4F with FPU — real-time control loop headroom The 11-channel 12-bit ADC and four 12-bit DAC channels reduce external analog front-end components in sensor and actuator designs. ## Package and thermal management for space-constrained boards Housed in a 32-UFQFN with exposed pad (5x5 mm body), the STM32G491KEU6 suits compact PCBs where board area is at a premium. Surface-mount assembly follows standard QFN reflow profiles; MSL rating should be verified from the latest STM datasheet revision before stencil design. ## Peripheral set and connectivity for mixed-signal applications The MCU integrates brown-out detect, POR, DMA, I²S, PWM, and a watchdog timer. Connectivity includes CANbus, I²C, IrDA, LINbus, SAI, SPI, UART/USART, and USB — enough to bridge fieldbus networks, sensor arrays, and human-machine interfaces without external protocol chips. The internal oscillator reduces external crystal count, though a precision external clock may be needed for USB or CAN timing compliance.","metaTitle":"STM32G491KEU6 STM32G4 MCU, ARM Cortex-M4F 170MHz","metaDescription":"STMicroelectronics STM32G491KEU6 32-bit MCU with ARM Cortex-M4F at 170MHz, 512KB Flash, 112KB SRAM, 11x12b ADC, 4x12b DAC. Industrial temp -40°C 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":"112K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, IRTIM, LINbus, SAI, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"26","Core Processor":"ARM® Cortex®-M4F","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":"STM32G491","Program Memory Size":"512KB (512K 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":"$9.5700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/475873daeb61e31a5487d47a07b785e4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM32G491KEU6 in the STM32G4 family?","answer":"Within the STM32G4 series, pin-compatible density variants exist (e.g., STM32G491KEx with different Flash/RAM sizes). The exact alternative depends on your memory and peripheral requirements — consult the STM32G4 reference manual for the cross-density pin map."},{"question":"What compliance documentation does ST provide for STM32G491KEU6?","answer":"STMicroelectronics publishes RoHS and REACH compliance declarations for the STM32G4 series. The specific certificate for this order code is available from the manufacturer's product page or upon request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32G491KEU6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32G491KEU6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:33:16.295Z","lastPublished":"2026-07-16T12:33:16.295Z","indexable":true}}