{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32G491CEU6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32G491CEU6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32G491CEU6","factsUrl":"https://icboms.com/api/mcp/products/STM32G491CEU6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32G4 series, STM32G491CEU6, 32-Bit Single-Core ARM Cortex-M4F, 170 MHz, 512KB Flash, 112K x 8 RAM, 42 I/O, CANbus/I²C/SPI/USART/USB, 19x12b ADC + 4x12b DAC, -40°C~85°C, 48-UFQFN Exposed Pad.","salesMarkdown":"## Analog integration — 19 ADC channels and 4 DAC outputs Nineteen 12-bit ADC channels and four 12-bit DAC outputs are on-die, which means a three-phase motor drive with current sensing on all legs plus a DC-link voltage measurement fits without external multiplexers or separate DACs. The 4 DAC channels can generate the analog references or setpoints for paralleled power stages directly from the core. ## Connectivity and peripheral set for industrial control CANbus, I²C, SPI, UART/USART, USB, SAI, and LINbus are all present, along with a full complement of timers including PWM generation and a brown-out detect/reset. The 42 I/O pins in the 48-pin package leave enough for a parallel LCD interface or a bank of opto-coupled inputs while keeping the serial buses routed. ## Package and thermal — 48-UFQFN with exposed pad Housed in a 48-UFQFN exposed-pad package (7x7 mm body), the STM32G491CEU6 is a surface-mount device.","metaTitle":"STM32G491CEU6 ARM Cortex-M4F MCU, 170 MHz, 512 KB Flash","metaDescription":"STMicroelectronics STM32G491CEU6 32-bit MCU with ARM Cortex-M4F at 170 MHz, 512 KB Flash, 112 KB RAM, 19x12b ADC, 4x12b DAC, industrial temp -40°C to 85°C.","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":"42","Core Processor":"ARM® Cortex®-M4F","Package / Case":"48-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 19x12b; 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":"48-UFQFPN (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.0400","priceTiers":[{"qty":1,"price":"$10.04000","currency":"USD"},{"qty":10,"price":"$9.06700","currency":"USD"},{"qty":25,"price":"$8.64480","currency":"USD"},{"qty":80,"price":"$7.50638","currency":"USD"},{"qty":260,"price":"$7.16900","currency":"USD"},{"qty":520,"price":"$6.53646","currency":"USD"},{"qty":1040,"price":"$5.75055","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/475873daeb61e31a5487d47a07b785e4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32G491CEU6/alternatives.json"},"ai":{"faq":[{"question":"Can STM32G491CEU6 replace STM32G431CEU6?","answer":"The STM32G491CEU6 runs at 170 MHz versus the STM32G431's lower clock, and carries 512 KB Flash compared to the G431's smaller memory. Pin compatibility depends on the specific package variant — verify the 48-pin UFQFPN footprint against your layout before substituting. The G491 is a higher-performance drop-in candidate for the same socket if the supply rails and peripheral mapping match."},{"question":"What is the difference between STM32G491CEU6 and STM32L151CBU6A?","answer":"The G491 also offers more ADC channels (19 vs 16) and DAC channels (4 vs 2). The L151 is an ultra-low-power line; the G491 is a high-performance line with DSP/FPU. They are not pin-compatible and serve different power-versus-performance design targets."},{"question":"What is the listed speed of STM32G491CEU6?","answer":"The core runs at 170 MHz maximum, which is the highest speed grade in the STM32G4 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32G491CEU6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32G491CEU6 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}}