{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8S103K3U6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8S103K3U6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8S103K3U6","factsUrl":"https://icboms.com/api/mcp/products/STM8S103K3U6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8S103K3U6, 8-bit STM8 core MCU, 16 MHz, 8 KB Flash, 1K x 8 RAM, 640 x 8 EEPROM, 28 I/O, I²C/SPI/UART, 2.95V–5.5V, -40°C to 85°C, 32-UFQFPN.","salesMarkdown":"The wide supply range from 2.95 V to 5.5 V lets it drop into existing 5 V industrial buses or 3.3 V battery-powered designs without a level shifter on every I/O. On-chip peripherals include a 10-bit ADC with four channels, a PWM timer, brown-out reset, and a watchdog — enough to run a BLDC sensorless commutation loop or a Modbus RTU slave without external glue logic.","metaTitle":"ST STM8S103K3U6 8-Bit MCU, 16 MHz, 8 KB Flash, -40 to 85°C","metaDescription":"STMicroelectronics STM8S103K3U6 8-bit MCU with 16 MHz core, 8 KB Flash, 1 KB RAM, 640 B EEPROM, industrial temp range.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"16MHz","Series":"STM8S","Package":"Tray","RAM Size":"1K x 8","Core Size":"8-Bit","EEPROM Size":"640 x 8","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"28","Core Processor":"STM8","Package / Case":"32-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 4x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM8","Program Memory Size":"8KB (8K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"32-UFQFPN (5x5)","Voltage - Supply (Vcc/Vdd)":"2.95V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3674b3c362c7ea11e333a829b5df608a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8S103K3U6/alternatives.json"},"ai":{"faq":[{"question":"Is STM8S103K3U6 compatible with 5V logic?","answer":"Yes. The supply voltage range of 2.95 V to 5.5 V means the I/O pins are 5 V-tolerant when the MCU is powered at 5 V. No external level translator is needed for 5 V peripherals like a classic 74HC logic gate or an HD44780 LCD."},{"question":"What are the alternatives to STM8S103K3U6?","answer":"Within the STM8S family, the STM8S103F3 series offers a smaller pin-count package (20-pin TSSOP) with the same core and memory, while the STM8S105 series steps up to 16 KB Flash and more I/O. Both are pin-compatible across the same package options where the pin count matches."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8S103K3U6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8S103K3U6 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}}