{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8S903F3U6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8S903F3U6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8S903F3U6TR","factsUrl":"https://icboms.com/api/mcp/products/STM8S903F3U6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8S903F3U6TR, 8-bit STM8 core MCU, 16 MHz, 8 KB Flash, 1 KB RAM, 640 B EEPROM, 2.95 V to 5.5 V supply, 16 I/O, -40 to 85 °C, 20-UFQFPN package.","salesMarkdown":"## 16 MHz STM8 core with 8 KB Flash — what the memory budget buys The STM8S903F3U6TR is an 8-bit microcontroller from ST's STM8S value line, built around the STM8 core running at 16 MHz. ## Peripherals and I/O — connectivity for control applications The integrated peripherals include a 5-channel 10-bit ADC, PWM outputs, brown-out detect, power-on reset, and a watchdog timer — a typical set for motor control, sensor interface, or human-machine interface (HMI) applications. Housed in a 20-pin UFQFPN package (3 mm x 3 mm), the device is surface-mount only. The small footprint suits space-constrained PCBs in handheld or compact equipment.","metaTitle":"STM8S903F3U6TR 8-bit MCU, 16 MHz, 8 KB Flash, STM8S series","metaDescription":"STMicroelectronics STM8S903F3U6TR 8-bit MCU with 16 MHz core, 8 KB Flash, 1 KB RAM, 640 B EEPROM, industrial temp -40 to 85°C.","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":"Tape & Reel (TR) Cut Tape (CT)","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":"16","Core Processor":"STM8","Package / Case":"20-UFQFN","Product Status":"Active","Data Converters":"A/D 5x10b","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":"20-UFQFPN (3x3)","Voltage - Supply (Vcc/Vdd)":"2.95V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/99a7192c520a3283640c68821053efb2.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8S903F3U6TR/alternatives.json"},"ai":{"faq":[{"question":"How many I/O pins does STM8S903F3U6TR have?","answer":"The STM8S903F3U6TR provides 16 I/O pins."},{"question":"What is STM8S903F3U6TR's listed speed (16 MHz) on this component line?","answer":"The core runs at 16 MHz, which is the maximum clock speed for this STM8S part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8S903F3U6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8S903F3U6TR 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}}