{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8S105K4U6ATR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8S105K4U6ATR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8S105K4U6ATR","factsUrl":"https://icboms.com/api/mcp/products/STM8S105K4U6ATR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8S105K4U6ATR, 8-Bit STM8 MCU, 16 MHz, 16KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 2.95V-5.5V, -40°C to 85°C, 32-UFQFPN (5x5).","salesMarkdown":"## Peripherals and I/O — what you get on 25 pins ## Sourcing and lifecycle — still active, no end-of-life notice This part is listed as Active. That means it's still a safe pick for new designs and production runs.","metaTitle":"ST STM8S105K4U6ATR 8-Bit MCU, 16 MHz, 16 KB Flash, UFQFPN-32","metaDescription":"STMicroelectronics STM8S105K4U6ATR 8-bit MCU with 16 MHz core, 16 KB Flash, 2 KB RAM, 1 KB EEPROM. Industrial temp -40 to 85°C, 2.95-5.5 V supply. Active, available to order. Reque","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)","RAM Size":"2K x 8","Core Size":"8-Bit","EEPROM Size":"1K 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":"25","Core Processor":"STM8","Package / Case":"32-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 7x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM8","Program Memory Size":"16KB (16K 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":"$1.1485","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/79a5231aeb7b67b40c4d895563a236b9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8S105K4U6ATR/alternatives.json"},"ai":{"faq":[{"question":"What is the operating temperature range of STM8S105K4U6ATR?","answer":"It's rated for -40°C to 85°C, which covers industrial and most outdoor applications without special screening."},{"question":"What is the operating voltage of STM8S105K4U6ATR?","answer":"Supply range is 2.95 V to 5.5 V, so it works with both 3.3 V and 5 V systems directly."},{"question":"Is STM8S105K4U6ATR compatible with STM8S105K4T6?","answer":"They share the same core, memory, and peripheral set; the T6 variant comes in a TQFP-32 package instead of UFQFPN. Electrically compatible, but the footprint differs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8S105K4U6ATR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8S105K4U6ATR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:39:33.080Z","lastPublished":"2026-07-16T10:39:33.080Z","indexable":true}}