{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32G491RET6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32G491RET6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32G491RET6","factsUrl":"https://icboms.com/api/mcp/products/STM32G491RET6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32G491RET6, ARM Cortex-M4F 32-bit MCU, 170 MHz, 512KB Flash, 112KB SRAM, 24x12-bit ADC, 4x12-bit DAC, 64-LQFP, -40°C to 85°C.","salesMarkdown":"The 24-channel 12-bit ADC and four 12-bit DAC channels are integrated on-chip, so a motor-drive or digital-power BOM can drop the separate analog front-end ICs. ## 512 KB Flash and 112 KB SRAM — firmware and data budget If your application uses the on-chip DACs for analog setpoints or waveform generation, the SRAM can hold lookup tables without stealing cycles from the core. For dual-sourcing planning, note that the STM32G4 series shares a common pinout across density options — a move to a higher-Flash sibling within the family is a straight footprint swap, though the firmware image size will need updating. ## 64-LQFP package — footprint and routing Housed in a 64-pin LQFP with a 10x10 mm body (0.5 mm pitch), the STM32G491RET6 routes comfortably on a two-layer board for moderate I/O counts. Surface-mount assembly is standard; no exposed pad means the thermal path is through the leads, so keep the ambient below 85°C or add airflow if the core runs sustained loads near the maximum current draw.","metaTitle":"STM32G491RET6 MCU, ARM Cortex-M4F 170 MHz, 512KB Flash","metaDescription":"STMicroelectronics STM32G491RET6 32-bit MCU with 170 MHz ARM Cortex-M4F, 512KB Flash, 112KB SRAM, 24-ch 12-bit ADC, 4-ch 12-bit DAC, CAN, USB, industrial temp.","metaKeywords":null},"attributes":{"series":"STM32G4","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","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":"52","Core Processor":"ARM® Cortex®-M4F","Package / Case":"64-LQFP","Product Status":"Active","Data Converters":"A/D 24x12b; 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":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.8800","priceTiers":[{"qty":1,"price":"$10.88000","currency":"USD"},{"qty":10,"price":"$9.83200","currency":"USD"},{"qty":25,"price":"$9.37520","currency":"USD"},{"qty":160,"price":"$8.14038","currency":"USD"},{"qty":320,"price":"$7.77453","currency":"USD"},{"qty":480,"price":"$7.08854","currency":"USD"},{"qty":960,"price":"$6.23625","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/475873daeb61e31a5487d47a07b785e4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32G491RET6/alternatives.json"},"ai":{"faq":[{"question":"Does STM32G491RET6 have built-in DAC?","answer":"Yes, the STM32G491RET6 integrates four 12-bit DAC channels."},{"question":"Is STM32G491RET6 pin compatible with STM32G431?","answer":"The STM32G491RET6 shares the same 64-pin LQFP footprint and general pinout layout as other STM32G4 series devices in the same package, including the STM32G431. However, verify the specific pin functions against your design because peripheral sets differ between the two parts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32G491RET6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32G491RET6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}