{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F051C8U7","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F051C8U7","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F051C8U7","factsUrl":"https://icboms.com/api/mcp/products/STM32F051C8U7","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F0 series, STM32F051C8U7, 32-bit ARM Cortex-M0 MCU, 48MHz, 64KB Flash, 8K x 8 RAM, 39 I/O, 2V~3.6V, -40°C~105°C, 48-UFQFN Exposed Pad, Tray.","salesMarkdown":"## Cortex-M0 MCU for cost-sensitive control applications Connectivity covers I2C, SPI, UART/USART, LINbus, IrDA, and HDMI-CEC, making it a fit for appliance control panels, lighting ballasts, and compact motor drives. At 48 MHz the Cortex-M0 executes a single-cycle multiply and delivers 0.9 DMIPS/MHz, so a tight 10 kHz current-loop PID runs with margin for communications overhead. The 64 KB Flash is organized as 64K x 8 with 8 KB of SRAM. That RAM budget constrains buffering for SPI or UART data streams — a 1 KB ring buffer for each of three serial ports leaves 5 KB for stack and variables, which is workable for a single-control-loop design but tight for a TCP/IP stack. ## 48-UFQFN with exposed pad — layout and rework notes The pad also serves as the primary electrical ground return — skipping the via stitch will cause the junction to climb above 85°C at sustained 50 mA I/O drive. Reworking this package under hot air is manageable: preheat the board to 120°C, apply flux, and lift at 320°C with a nozzle matching the 7x7 mm outline. ## Supply voltage and power rail design At 2.0 V the 48 MHz PLL still locks, but Flash access requires one wait state below 2.4 V — the core clock must be reduced or the supply held above that threshold for full-speed operation. ## Active lifecycle — no EOL concern for new designs This makes it safe to qualify for a new BOM without planning a last-time buy or a pin-compatible migration. ROHS3 compliance is confirmed, so it passes EU and global material-restriction requirements without a waiver. The base product number STM32F051 covers a density family, so firmware and PCB layout can scale across Flash and RAM variants within the same 48-UFQFN footprint.","metaTitle":"STM32F051C8U7 ARM Cortex-M0 MCU, 48MHz, 64KB Flash, 48-UFQFN","metaDescription":"STMicroelectronics STM32F051C8U7 32-bit MCU, 48MHz core, 64KB Flash, 8KB RAM, -40 to 105°C, 48-UFQFN.","metaKeywords":null},"attributes":{"series":"STM32F0","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"48MHz","Series":"STM32F0","Package":"Tray","RAM Size":"8K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"DMA, I²S, POR, PWM, WDT","Connectivity":"HDMI-CEC, I²C, IrDA, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"39","Core Processor":"ARM® Cortex®-M0","Package / Case":"48-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 13x12b; D/A 1x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F051","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~105°C(TA)","Supplier Device Package":"48-UFQFPN (7x7)","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.5300","priceTiers":[{"qty":1,"price":"$4.53000","currency":"USD"},{"qty":10,"price":"$4.06900","currency":"USD"},{"qty":25,"price":"$3.84680","currency":"USD"},{"qty":80,"price":"$3.33375","currency":"USD"},{"qty":230,"price":"$3.16278","currency":"USD"},{"qty":440,"price":"$2.83798","currency":"USD"},{"qty":1560,"price":"$2.39347","currency":"USD"},{"qty":3120,"price":"$2.33130","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5b8222026032a8f6c67417def25d2d17.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F051C8U7/alternatives.json"},"ai":{"faq":[{"question":"What interfaces does STM32F051C8U7 support?","answer":"It supports I2C, SPI, UART/USART, LINbus, IrDA, and HDMI-CEC. These cover common serial communication needs for sensor hubs, motor drives, and human-machine interfaces."},{"question":"Can STM32F051C8U7 replace STM32F051C8U6?","answer":"The STM32F051C8U7 and STM32F051C8U6 share the same core, memory, and peripheral set. The 'U7' suffix indicates a 48-UFQFN package with an exposed pad, while the 'U6' variant may differ in temperature grade or packaging. Check the specific U6 datasheet for operating temperature and package details before substituting."},{"question":"What is the closest functional second-source for STM32F051C8U7?","answer":"It is not a pin-compatible drop-in — it uses a different core architecture and has a narrower temperature grade — but it shares the same I2C, SPI, UART, and LINbus connectivity for a functional redesign."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F051C8U7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F051C8U7 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}}