{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F051K8U7","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F051K8U7","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F051K8U7","factsUrl":"https://icboms.com/api/mcp/products/STM32F051K8U7","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F0 series, ARM Cortex-M0, 32-bit, 48MHz, 64KB Flash, 8K x 8 RAM, 27 I/O, 2V to 3.6V, -40°C to 105°C, 32-UFQFN Exposed Pad, Tray.","salesMarkdown":"## 48 MHz Cortex-M0 with 64 KB Flash — what the memory and speed budget buys The STM32F051K8U7: 48 MHz Cortex-M0 with 64 KB Flash and 8K x 8 RAM. The 48 MHz clock is the practical ceiling for single-cycle I/O toggling and timer PWM update rates. The 105°C ceiling covers most factory-automation and telecom-rack scenarios; designs that push junction temperature above 105°C need the higher-grade STM32F0 variants or a thermal derating analysis on the exposed-pad package. ## Package and footprint — 32-UFQFPN with exposed pad ## Supply range and power rail compatibility Operates from 2.0 V to 3.6 V, covering both 3.3 V and 2.5 V logic rails. The 2.0 V floor allows continued operation through a 3.3 V rail brownout down to 2.0 V, which is useful for battery-backed or capacitor-hold-up designs. Internal POR and brown-out detect are included, so an external supervisor is not required for basic reset integrity. ## Analog and peripheral integration The peripheral set includes DMA, I²S, PWM, and a watchdog timer, plus the connectivity listed above. The internal oscillator is factory-calibrated and sufficient for UART and I²C timing; an external crystal is only needed when the application requires tighter clock accuracy than the internal RC can provide. For dual-sourcing or supply resilience, the STM32L151CBU6A is a functional peer in the STM32L1 series with a Cortex-M3 core at 32 MHz, 37 I/O, and a wider ADC complement — but it is not pin-compatible and targets a different power-vs-performance trade-off.","metaTitle":"STM32F051K8U7 STM32F0 MCU, 48MHz Cortex-M0, 64KB Flash","metaDescription":"STMicroelectronics STM32F051K8U7 32-bit ARM Cortex-M0 MCU, 48MHz, 64KB Flash, 8KB SRAM, 27 I/O, -40 to 105°C, 32-UFQFPN. Active lifecycle, available to order.","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":"27","Core Processor":"ARM® Cortex®-M0","Package / Case":"32-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":"32-UFQFPN (5x5)","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.0100","priceTiers":[{"qty":1,"price":"$4.01000","currency":"USD"},{"qty":10,"price":"$3.59800","currency":"USD"},{"qty":25,"price":"$3.40160","currency":"USD"},{"qty":80,"price":"$2.94800","currency":"USD"},{"qty":230,"price":"$2.79678","currency":"USD"},{"qty":490,"price":"$2.50953","currency":"USD"},{"qty":980,"price":"$2.11648","currency":"USD"},{"qty":2450,"price":"$2.01065","currency":"USD"},{"qty":4900,"price":"$1.93506","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5b8222026032a8f6c67417def25d2d17.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F051K8U7/alternatives.json"},"ai":{"faq":[{"question":"Can STM32F051K8U7 be programmed with ST-Link?","answer":"Yes, the STM32F0 series supports SWD (Serial Wire Debug) via the standard ST-Link programmer. The SWD interface remains active even with the watchdog enabled, which simplifies firmware bring-up."},{"question":"Is STM32F051K8U7 equivalent to STM32F051K8U6?","answer":"The difference is the temperature grade. Functionally they are the same device; the U7 is the wider-temperature variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F051K8U7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F051K8U7 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}}