{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8AF52AATCY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8AF52AATCY","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8AF52AATCY","factsUrl":"https://icboms.com/api/mcp/products/STM8AF52AATCY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8A series, STM8AF52AATCY, 8-Bit MCU, 24MHz, 128KB (128K x 8) FLASH, 6K x 8 RAM, 2K x 8 EEPROM, AEC-Q100, 80-LQFP, -40°C to 125°C.","salesMarkdown":"## 24 MHz 8-bit core with automotive-grade peripherals The STMicroelectronics STM8AF52AATCY is an 8-bit microcontroller from the automotive-qualified STM8A series, built around the STM8A core running at 24 MHz. ## CAN and LIN — the body-network interface set The CAN and LIN controllers are the primary links for automotive body electronics — door modules, seat controllers, HVAC actuators, and lighting ECUs that communicate over the vehicle's multiplexed buses. The 68 general-purpose I/O lines, together with the 16-channel 10-bit ADC, cover sensor acquisition and actuator drive without external expanders. ST has not published a formal last-time-buy date or a direct pin-compatible successor in the STM8A family. For existing production, the part remains available through independent distribution on a quoted-to-order basis. New designs should evaluate the current STM8A or STM32 automotive portfolio for a migration path. ## 80-LQFP — footprint and thermal notes The exposed pad is not present on this package variant — all dissipation goes through the leads. For continuous operation near 125°C ambient with multiple peripherals active, verify junction temperature against the package thermal resistance.","metaTitle":"STM8AF52AATCY 8-bit MCU, 24 MHz, 128 KB Flash, AEC-Q100","metaDescription":"STMicroelectronics STM8AF52AATCY automotive 8-bit MCU: 24 MHz core, 128 KB Flash, 6 KB RAM, 2 KB EEPROM, CAN/LIN, 80-LQFP, -40°C to 125°C.","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":"Tray","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":"128KB (128K 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":"$7.6000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a76a247b2d898b9b81fdf0b841467bbd.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8AF52AATCY/alternatives.json"},"ai":{"faq":[{"question":"Is STM8AF52AATCY obsolete or NRND?","answer":"It is not formally discontinued, but ST advises against using it in new projects. Existing designs can still source it through independent distributors on a quoted-to-order basis."},{"question":"Does STM8AF52AATCY support CAN and LIN communication?","answer":"The CAN and LIN controllers are integrated on-chip, so no external transceiver is needed at the protocol level — only the physical-layer transceiver for the bus."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8AF52AATCY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8AF52AATCY 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}}