{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32G491CCU3","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32G491CCU3","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32G491CCU3","factsUrl":"https://icboms.com/api/mcp/products/STM32G491CCU3","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32G4 series, 32-bit ARM Cortex-M4 MCU, STM32G491CCU3, 170MHz, 256KB Flash, 112K x 8 RAM, CANbus, I²C, SPI, USB, 42 I/O, 1.71V-3.6V, -40°C to 125°C, 48-UFQFN Exposed Pad.","salesMarkdown":"## 170 MHz Cortex-M4 with FPU — real-time control headroom The STM32G491CCU3: The core runs at 170 MHz with a single-precision FPU and DSP instructions, giving it enough margin for nested control loops — motor field-oriented control, digital power conversion, or sensor fusion — without pushing the clock to the wall. Program memory is 256 KB of Flash, paired with 112 KB of SRAM, which fits moderate firmware stacks with room for OTA staging if the erase granularity is planned around. ## Peripheral set: CANbus and mixed-signal on a single die The data converter block includes 19 analog inputs through a 12-bit SAR ADC and four 12-bit DAC channels. Brown-out reset, power-on reset, and a watchdog timer are built in. ## Package and mounting — 48-UFQFN with exposed pad Housed in a 48-UFQFN Exposed Pad package (7x7 mm body), this is a surface-mount device. The supplier device package designation is 48-UFQFPN (7x7). ## Lifecycle and supply posture For a BOM line, this means no LTB risk and no forced redesign for the foreseeable future.","metaTitle":"STM32G491CCU3 ARM Cortex-M4 MCU, 170 MHz, 256 KB Flash","metaDescription":"STMicroelectronics STM32G491CCU3 32-bit MCU with 170 MHz Cortex-M4 core, 256 KB Flash, 112 KB RAM, CANbus, -40°C to 125°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":"Bulk","RAM Size":"112K x 8","Core Size":"32-Bit","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"42","Core Processor":"ARM® Cortex®-M4","Package / Case":"48-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 19x12b SAR; D/A 4x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"48-UFQFPN (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.1176","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/402d6026ee008535da950a87d7b9c5c0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does the STM32G491CCU3 have CAN bus?","answer":"Yes, the STM32G491CCU3 includes a CANbus interface as part of its connectivity set, alongside I²C, SPI, UART/USART, USB, and QSPI."},{"question":"What is the maximum clock speed of the STM32G491CCU3?","answer":"The STM32G491CCU3 runs at a maximum core speed of 170 MHz, which is the rated speed for the ARM Cortex-M4 with FPU."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32G491CCU3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32G491CCU3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:32:22.718Z","lastPublished":"2026-07-16T12:32:22.718Z","indexable":true}}