{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8S105K4B6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8S105K4B6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8S105K4B6","factsUrl":"https://icboms.com/api/mcp/products/STM8S105K4B6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8S105K4B6, STM8S series, 8-bit MCU, 16 MHz, 16 KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 32-SDIP through-hole, -40°C to 85°C, 2.95V to 5.5V.","salesMarkdown":"The STM8S105K4B6: For existing BOM lines, availability is limited to surplus and broker channels. ## What this 8-bit MCU delivers It runs at 16 MHz and provides 16 KB of Flash program memory, 2K x 8 of RAM, and 1K x 8 of EEPROM for non-volatile parameter storage. The 32-SDIP through-hole package (0.400\" body width, 10.16 mm pitch) makes it suitable for hand-assembly, prototyping, or legacy boards where surface-mount reflow is impractical. ## Peripherals and connectivity for control applications On-chip peripherals include a 7-channel 10-bit ADC, brown-out detect and reset, PWM, and a watchdog timer. Communication interfaces cover I²C, SPI, UART/USART, LIN, and IrDA, giving it the flexibility to talk to sensors, actuators, displays, and serial buses typical in industrial control and automotive body electronics. With 25 I/O lines in the 32-pin package, it provides enough GPIO for moderate-complexity designs like motor control panels, lighting controllers, or HVAC zone modules. The 16 MHz clock rate is typical for an 8-bit MCU in this class; it delivers roughly 16 MIPS at that speed, sufficient for real-time control loops, sensor polling, and communication protocol handling.","metaTitle":"ST STM8S105K4B6 8-bit MCU, 16 MHz, 16 KB Flash, 32-SDIP","metaDescription":"STMicroelectronics STM8S105K4B6 8-bit MCU, 16 MHz core, 16 KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 32-SDIP through-hole, -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":"Tube","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":"Through Hole","Number of I/O":"25","Core Processor":"STM8","Package / Case":"32-SDIP (0.400\\\", 10.16mm)","Product Status":"Obsolete","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-SDIP","Voltage - Supply (Vcc/Vdd)":"2.95V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/79a5231aeb7b67b40c4d895563a236b9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8S105K4B6/alternatives.json"},"ai":{"faq":[{"question":"What is STM8S105K4B6's listed speed?","answer":"The core runs at 16 MHz, which is the maximum clock frequency supported by the internal oscillator. This speed is adequate for typical 8-bit control tasks like sensor reading, PWM generation, and serial communication."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8S105K4B6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8S105K4B6 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}}