{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8AF6246TDSSSY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8AF6246TDSSSY","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8AF6246TDSSSY","factsUrl":"https://icboms.com/api/mcp/products/STM8AF6246TDSSSY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8AF6246TDSSSY, Automotive AEC-Q100 STM8A series, 8-bit MCU, 16 MHz, 16 KB Flash, 2K x 8 RAM, 512 x 8 EEPROM, 3V–5.5V, -40°C to 150°C, 32-LQFP.","salesMarkdown":"## 150°C-rated 8-bit MCU for under-hood and industrial high-temp nodes It runs at 16 MHz from a 3V to 5.5V supply, with 16 KB of Flash program memory, 2K x 8 RAM, and 512 x 8 EEPROM. This combination targets automotive body-control modules, engine-management nodes, and industrial controllers that must operate reliably in high-ambient-temperature environments. ## NRND — plan for last-time buy or alternative This means STMicroelectronics is not actively supporting new design-ins, though the part remains available for existing production runs through the independent distribution channel. Buyers with ongoing BOM requirements should evaluate a last-time-buy window or identify a pin-compatible replacement within the STM8A family. The official product status is NRND, so sourcing through surplus or broker channels is the typical path for filling orders. ## 16 MHz core and 150°C junction — what drives the fit The 16 MHz core speed is modest by today's standards, but for an 8-bit MCU in a high-temperature automotive node, it is a deliberate trade-off: the STM8A architecture keeps switching losses low enough to stay within the thermal budget at 150°C ambient. The 16 KB Flash and 2K x 8 RAM are sized for control-loop code and small data buffers, not for large firmware images. The 512 x 8 EEPROM provides non-volatile storage for calibration constants and fault logs without requiring external memory. The 7-channel 10-bit ADC covers analog sensor inputs typical in automotive body and chassis applications. ## 32-LQFP and AEC-Q100 qualification Housed in a 32-LQFP package with 25 I/O, the STM8AF6246TDSSSY fits standard surface-mount assembly processes. The AEC-Q100 qualification confirms it meets automotive stress tests for reliability under thermal cycling, humidity, and extended temperature exposure.","metaTitle":"ST STM8AF6246TDSSSY 8-bit MCU, 16 MHz, AEC-Q100, 150°C","metaDescription":"STMicroelectronics STM8AF6246TDSSSY 8-bit MCU, 16 MHz core, 16 KB Flash, 2K x 8 RAM, 512 x 8 EEPROM, AEC-Q100, -40 to 150°C, 32-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"16MHz","Series":"Automotive, AEC-Q100, STM8A","Package":"Tray","RAM Size":"2K x 8","Core Size":"8-Bit","EEPROM Size":"512 x 8","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"25","Core Processor":"STM8A","Package / Case":"32-LQFP","Product Status":"Not For New Designs","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~150°C(TA)","Voltage - Supply (Vcc/Vdd)":"3V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3396","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/50583dbf408c178457ce0059a412707e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8AF6246TDSSSY/alternatives.json"},"ai":{"faq":[{"question":"Is STM8AF6246TDSSSY obsolete or NRND?","answer":"It is not fully discontinued, but STMicroelectronics is not targeting it for new design-ins. Existing production can continue through surplus or broker channels."},{"question":"What is the replacement for STM8AF6246TDSSSY?","answer":"An official successor is not listed in the available records. For a pin-compatible alternative, evaluate other STM8A family MCUs in the 32-LQFP package with similar memory and peripheral sets. Contact our sourcing team for cross-reference support."},{"question":"What are the full specifications of STM8AF6246TDSSSY?","answer":"The STM8AF6246TDSSSY is an 8-bit MCU with a 16 MHz STM8A core, 16 KB Flash, 2K x 8 RAM, 512 x 8 EEPROM, 25 I/O, 7-channel 10-bit ADC, and connectivity including I²C, LINbus, SPI, and UART/USART. It operates from 3V to 5.5V over -40°C to 150°C in a 32-LQFP package, AEC-Q100 qualified."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8AF6246TDSSSY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8AF6246TDSSSY 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}}