{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8AL3138TCY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8AL3138TCY","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8AL3138TCY","factsUrl":"https://icboms.com/api/mcp/products/STM8AL3138TCY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8A series, 8-bit MCU, STM8AL3138TCY, 16MHz, 8KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 48-LQFP, -40°C~125°C, AEC-Q100.","salesMarkdown":"## 8-bit automotive MCU with AEC-Q100 qualification It runs at 16 MHz, packs 8 KB of Flash program memory, 2K x 8 of RAM, and 1K x 8 of EEPROM — enough for sensor fusion, LIN-bus node control, or actuator management in a body-control module. The 48-LQFP package (7x7 mm) gives you 41 I/Os, plus a 12-bit ADC with 25 channels and a single 12-bit DAC, all rated over -40°C to 125°C and AEC-Q100 qualified. ## NRND — plan your BOM transition If you are qualifying a fresh BOM, look at the active STM8A siblings in the same 48-LQFP footprint — ST does not publish a direct pin-compatible successor for this exact code, so a pin-to-pin swap requires checking the current STM8A selector guide. The 8-bit core runs at 16 MHz, handling LIN-bus messaging, ADC sampling, and PWM generation. ## Peripherals and connectivity for automotive nodes On-chip peripherals include brown-out detect, POR, a watchdog timer, and DMA — all essential for fail-safe automotive designs. The internal oscillator saves an external crystal, though you still need a clock source for the LIN bus timing. The 25-channel 12-bit ADC covers multiple analog inputs without an external mux.","metaTitle":"ST STM8AL3138TCY 8-bit MCU, AEC-Q100, 16 MHz, 8 KB Flash, 48-LQFP","metaDescription":"STM8AL3138TCY 8-bit automotive MCU, 16 MHz, 8 KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, AEC-Q100, -40 to 125°C. NRND — sourced to order against RFQ.","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":"1K x 8","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"41","Core Processor":"STM8A","Package / Case":"48-LQFP","Product Status":"Not For New Designs","Data Converters":"A/D 25x12b; D/A 1x12b","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~125°C(TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"1.65V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3735","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fcda9e9e20a5c37a9c561bb37d935f5e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8AL3138TCY/alternatives.json"},"ai":{"faq":[{"question":"What is the pinout and package of STM8AL3138TCY?","answer":"It comes in a 48-LQFP package (7x7 mm) with 41 I/Os. The pinout follows the standard STM8A 48-pin layout; the datasheet covers the full pin assignment."},{"question":"What is a reliable replacement or equivalent for STM8AL3138TCY?","answer":"ST does not list a direct pin-compatible successor for this exact order code. For new designs, check the active STM8A family in the same 48-LQFP package; a pin-to-pin substitution requires verifying the peripheral set and memory size against your firmware."},{"question":"What is STM8AL3138TCY's listed speed?","answer":"The core runs at 16 MHz, suitable for real-time control loops in automotive LIN nodes and sensor interfaces."},{"question":"What is STM8AL3138TCY's listed series?","answer":"It belongs to the STM8A series, which carries AEC-Q100 automotive qualification and operates from -40°C to 125°C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8AL3138TCY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8AL3138TCY 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}}