{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8AF528ATCX","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8AF528ATCX","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8AF528ATCX","factsUrl":"https://icboms.com/api/mcp/products/STM8AF528ATCX","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8A series 8-bit MCU, STM8AF528ATCX, 64KB Flash, 6K x 8 RAM, 2K x 8 EEPROM, 24MHz, 68 I/O, CAN/LIN/SPI/I2C, -40 to 125°C, 80-LQFP.","salesMarkdown":"## Qualification and operating environment This covers under-hood, engine bay, and other high-temperature locations where a grade-1 or grade-0 part is required. Core speed is 24 MHz with an 8-bit STM8A core, 64 KB of program Flash, 6 KB RAM, and 2 KB of EEPROM. The 68 I/O pins provide ample headroom for multiplexed switches, LED drivers, and sensor inputs typical in automotive body electronics. A last-time-buy (LTB) window may be announced; procurement teams should check current lead times and consider securing a final order quantity for the remaining production run. For ongoing builds, the STM8AF528ATCX remains a valid BOM line — but any new design should evaluate the recommended successor within the STM8A family to avoid a future obsolescence-driven redesign. Sourcing through independent distribution is a practical channel for bridging the supply gap during the phase-out period. ## Memory and peripheral fit for automotive control The 64 KB Flash and 6 KB RAM are sized for a single AUTOSAR software component or a bootloader-plus-application split. The 2 KB EEPROM handles calibration parameters and fault codes without an external EEPROM. If your application requires larger data buffers or more complex floating-point processing, consider stepping up to a part with more RAM — but for LIN slave nodes, CAN message forwarding, or switch-debounce logic, this memory footprint is adequate. The CAN and LIN controllers are hardware-implemented, reducing CPU load for bus communication. The 10-bit ADC with 16 channels covers multiple analog sensors (temperature, position, voltage) without an external multiplexer.","metaTitle":"STM8AF528ATCX Automotive MCU, 8-Bit, 24MHz, 64KB Flash","metaDescription":"STMicroelectronics STM8AF528ATCX 8-bit MCU, 24MHz, 64KB Flash, 6K RAM, 2K EEPROM, AEC-Q100, -40 to 125°C, 80-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"24MHz","Series":"Automotive, AEC-Q100, STM8A","Package":"Tape & Reel (TR)","RAM Size":"6K x 8","Core Size":"8-Bit","EEPROM Size":"2K x 8","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"CANbus, I²C, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"68","Core Processor":"STM8A","Package / Case":"80-LQFP","Product Status":"Not For New Designs","Data Converters":"A/D 16x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM8","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"80-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"3V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.1652","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a76a247b2d898b9b81fdf0b841467bbd.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8AF528ATCX/alternatives.json"},"ai":{"faq":[{"question":"Is STM8AF528ATCX obsolete or NRND?","answer":"It is not yet fully obsolete, but new designs should target the recommended replacement to avoid future discontinuation."},{"question":"What is the recommended replacement for STM8AF528ATCX?","answer":"ST's official recommendation would be a pin-compatible part within the STM8AF series with a current lifecycle status. Check with ST or a franchised distributor for the exact successor order code. For existing production, the STM8AF528ATCX remains available through independent channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8AF528ATCX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8AF528ATCX 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}}