{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8S103F3U6ATR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8S103F3U6ATR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8S103F3U6ATR","factsUrl":"https://icboms.com/api/mcp/products/STM8S103F3U6ATR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8S103F3U6ATR, 8-bit STM8 core MCU, 16 MHz, 8 KB Flash, 1 KB RAM, 640 B EEPROM, I²C/SPI/UART/LIN, 16 I/O, 5x10-bit ADC, 2.95 V–5.5 V, -40°C to 85°C, 20-UFQFPN (3x3 mm), Tape & Reel.","salesMarkdown":"## 8-bit MCU with integrated EEPROM and flexible peripherals ## Memory and peripheral fit for embedded control The 8 KB Flash is sized for small-to-medium control firmware — think motor commutation loops, sensor polling, or communication protocol stacks. The 1 KB SRAM handles modest data buffers, while the 640-byte EEPROM allows parameter storage without external memory. The 16 I/O pins, combined with I²C, SPI, and UART, support common sensor and actuator interfaces. The 10-bit ADC with five channels covers analog inputs like potentiometers, thermistors, or current-sense resistors. ## Package and footprint details Housed in a 20-lead UFQFPN package measuring 3x3 mm, this is a surface-mount-only device. The compact footprint suits dense PCB layouts in portable or space-constrained equipment.","metaTitle":"STM8S103F3U6ATR 8-bit MCU, 16 MHz, 8 KB Flash, 20-UFQFPN","metaDescription":"STM8S103F3U6ATR STMicroelectronics 8-bit MCU, 16 MHz core, 8 KB Flash, 1 KB RAM, 640 B EEPROM, 20-UFQFPN (3x3 mm), industrial temp -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"16MHz","Series":"STM8S","Package":"Tape & Reel (TR)","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":"Obsolete","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":"$1.9500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3674b3c362c7ea11e333a829b5df608a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8S103F3U6ATR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8S103F3U6ATR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8S103F3U6ATR 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}}