{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F042K6U7","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F042K6U7","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F042K6U7","factsUrl":"https://icboms.com/api/mcp/products/STM32F042K6U7","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F042K6U7, STM32F0 series 32-bit ARM Cortex-M0 MCU, 48 MHz, 32 KB Flash, 6K x 8 RAM, USB/CAN, 26 I/O, 32-UFQFN exposed pad, -40 to 105°C.","salesMarkdown":"## 48 MHz Cortex-M0 — enough for control-loop and interface tasks The ARM Cortex-M0 core at 48 MHz is a lean, single-cycle machine suited for sensor polling, protocol bridging, and real-time control loops. It does not have a hardware divider or single-cycle multiply like the M3/M4, but for UART-to-CAN gateways, motor commutation at moderate PWM rates, or USB HID-class devices, the 48 MHz clock keeps the firmware simple and the power draw low. ## 32 KB Flash, 6 KB SRAM — sizing the firmware and data buffers The 6 KB SRAM leaves room for two 512-byte USB buffers plus a CAN mailbox and a modest stack. If the application needs over-the-air updates, the 32 KB Flash limits the image to one active plus one backup slot — plan the linker script accordingly. ## USB and CAN on a 5 mm × 5 mm package The 32-UFQFPN (5x5 mm) package with exposed pad keeps the board area small while still offering 26 GPIOs. USB 2.0 full-speed device and CAN 2.0B are both on-chip, which is unusual for a package this compact — it saves an external USB-to-serial bridge or a separate CAN controller. The 13-channel 12-bit ADC is enough for reading analog sensors or monitoring a power rail. DMA and a PWM timer round out the peripheral set for motor-drive or lighting applications. STMicroelectronics lists the STM32F042K6U7 as Active. The base product number STM32F042 covers several Flash and package variants, so if a future project needs more memory, the pin-compatible STM32F042K8 (64 KB Flash) or STM32F042G4 (16 KB Flash) are available without a PCB change.","metaTitle":"STM32F042K6U7 STM32F0 ARM Cortex-M0 MCU, 48 MHz, 32 KB Flash","metaDescription":"STM32F042K6U7 32-bit ARM Cortex-M0 MCU from STMicroelectronics. 48 MHz, 32 KB Flash, 6K x 8 RAM, USB & CAN, -40 to 105°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"48MHz","Series":"STM32F0","Package":"Tray","RAM Size":"6K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, HDMI-CEC, I²C, IrDA, LINbus, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"26","Core Processor":"ARM® Cortex®-M0","Package / Case":"32-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 13x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F042","Program Memory Size":"32KB (32K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~105°C(TA)","Supplier Device Package":"32-UFQFPN (5x5)","Voltage - Supply (Vcc/Vdd)":"1.65V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1572","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2c1922c6f0807cc91ffca510b8e89a8e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F042K6U7/alternatives.json"},"ai":{"faq":[{"question":"Does STM32F042K6U7 have USB support?","answer":"Yes, the STM32F042K6U7 includes a USB 2.0 full-speed device interface with HDMI-CEC support."},{"question":"Is STM32F042K6U7 a direct replacement for STM32F042K6?","answer":"The STM32F042K6U7 uses the same STM32F042 core and 32 KB Flash / 6 KB SRAM as the STM32F042K6, but the suffix 'U7' indicates a 32-UFQFPN package (5x5 mm) with exposed pad, while the 'K6' variant typically comes in an LQFP-32. The pinout and footprint differ — check the mechanical drawings before substituting on an existing board."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F042K6U7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F042K6U7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}