{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32G491MET6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32G491MET6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32G491MET6","factsUrl":"https://icboms.com/api/mcp/products/STM32G491MET6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32G491MET6, ARM Cortex-M4F 32-bit MCU, 170 MHz, 512 KB Flash, 112K x 8 RAM, 80-LQFP, -40°C to 85°C.","salesMarkdown":"The hardware floating-point unit (FPU) and DSP instructions let it run motor-control FOC loops, digital power-supply compensators, or audio processing without a separate DSP or external analog compute block. The 512 KB Flash and 112K x 8 RAM are sized for a single firmware image with room for bootloader and OTA staging — enough for most mixed-signal control designs without stepping up to the 1 MB density tier. ## Analog front end in one package With 32 channels of 12-bit ADC and four 12-bit DAC channels, this part can sample multiple current-sense resistors, voltage dividers, and temperature sensors while generating analog setpoints or reference waveforms — all on-chip. That reduces the external analog BOM to a handful of decoupling caps and anti-alias filters. ## 80-LQFP — routing and thermal reality The 80-LQFP (12x12 mm) package with 66 I/O gives enough pins to bring out all the CAN, I²C, SPI, UART, and USB interfaces without needing a larger BGA. Surface-mount assembly is straightforward with standard reflow profiles. ## Lifecycle and supply posture The base product number STM32G491 covers multiple density and package variants, so a pin-compatible drop-in like the STM32G491RET6 (same 80-LQFP, same peripherals, 512 KB Flash) is a valid second-source candidate for dual-sourcing or supply resilience — not because this part is obsolete, but because having a second order code on the AVL reduces single-source risk.","metaTitle":"STM32G491MET6 ARM Cortex-M4F MCU, 170 MHz, 512 KB Flash","metaDescription":"STMicroelectronics STM32G491MET6 32-bit MCU, ARM Cortex-M4F at 170 MHz, 512 KB Flash, 112K x 8 RAM, 80-LQFP.","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":"66","Core Processor":"ARM® Cortex®-M4F","Package / Case":"80-LQFP","Product Status":"Active","Data Converters":"A/D 32x12b; 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":"80-LQFP (12x12)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.9600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/475873daeb61e31a5487d47a07b785e4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can STM32G491MET6 be used as a replacement for STM32G491RET6?","answer":"Yes, the STM32G491RET6 is a pin-compatible alternative in the same 80-LQFP package with the same 512 KB Flash and peripheral set. The RET6 differs only in RAM size (96K x 8 vs 112K x 8) and temperature grade options. For most designs the MET6 is a drop-in replacement; verify the RAM footprint fits your application."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32G491MET6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32G491MET6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:40:08.663Z","lastPublished":"2026-07-16T12:40:08.663Z","indexable":true}}