{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8S103K3B6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8S103K3B6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8S103K3B6","factsUrl":"https://icboms.com/api/mcp/products/STM8S103K3B6","rawCanonicalId":null},"summary":{"shortDescription":"ST STM8S103K3B6, STM8S series 8-bit MCU, STM8 core, 16 MHz, 8 KB Flash, 1K x 8 RAM, 640 x 8 EEPROM, SDIP-32, -40°C to 85°C.","salesMarkdown":"The STM8S103K3B6 is an 8-bit microcontroller from the STM8S value-line family, built around the STM8 core running at 16 MHz. The through-hole package suits prototype runs or low-volume production. The core runs at 16 MHz maximum. Four 10-bit ADC channels handle analog inputs. ## Supply voltage and I/O Supply range is 2.95 V to 5.5 V. 28 I/O pins are available.","metaTitle":"ST STM8S103K3B6 8-bit MCU, 16 MHz, 8 KB Flash, SDIP-32","metaDescription":"STMicroelectronics STM8S103K3B6 8-bit STM8 MCU, 16 MHz, 8 KB Flash, 1 KB RAM, 640 B EEPROM, SDIP-32, -40°C to 85°C. Obsolete — sourced to order against RFQ.","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":"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":"Through Hole","Number of I/O":"28","Core Processor":"STM8","Package / Case":"32-SDIP (0.400\\\", 10.16mm)","Product Status":"Obsolete","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)","Voltage - Supply (Vcc/Vdd)":"2.95V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3674b3c362c7ea11e333a829b5df608a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8S103K3B6/alternatives.json"},"ai":{"faq":[{"question":"Is STM8S103K3B6 obsolete?","answer":"Yes, ST has marked this part as obsolete. No further factory production is planned. The part is available through surplus and independent distribution channels, sourced to order against an RFQ."},{"question":"What is the replacement for STM8S103K3B6?","answer":"ST does not list a direct pin-compatible successor for this exact order code. For a new design, consider the active STM8S103K3T6 (same core, Flash, and RAM in a TQFP-32 package) or a higher-density STM8S105/STM8S207 variant if you need more Flash or I/O. Verify pinout and package compatibility before substituting."},{"question":"Is STM8S103K3B6 compatible with STM8S103K3T6?","answer":"The STM8S103K3T6 shares the same core, memory, and peripheral set but comes in a TQFP-32 package instead of the SDIP-32. They are not pin-compatible due to the different package footprint, so a board redesign is required."},{"question":"Where can I buy STM8S103K3B6?","answer":"This obsolete part is sourced through independent distribution. We quote it to order against an RFQ — availability and current pricing are confirmed at quote time. Submit an RFQ for a binding offer."},{"question":"What is the pinout of STM8S103K3B6?","answer":"The pinout is documented in the STM8S103K3 datasheet. The SDIP-32 package provides 28 I/O, plus power, ground, and oscillator pins. The exact pin functions (including the 4x10-bit ADC channels and serial interfaces) are listed in the datasheet's pin assignment table."},{"question":"What is STM8S103K3B6's listed speed?","answer":"The core runs at 16 MHz maximum."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8S103K3B6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8S103K3B6 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}}