{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8AL3146TCY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8AL3146TCY","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8AL3146TCY","factsUrl":"https://icboms.com/api/mcp/products/STM8AL3146TCY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8AL3146TCY, Automotive AEC-Q100 STM8A series, 8-bit MCU, 16 MHz, 16 KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 22x12b A/D + 1x12b D/A, 1.65 V to 3.6 V, -40 to 125 °C, 32-LQFP (7x7 mm), Tray.","salesMarkdown":"## What this 8-bit MCU brings to an automotive ECU The STMicroelectronics STM8AL3146TCY is an 8-bit MCU, AEC-Q100 qualified and specified across -40 to 125 °C. It runs at 16 MHz from an internal oscillator, carries 16 KB Flash and 1 KB EEPROM, and integrates a 22-channel 12-bit ADC plus one 12-bit DAC. This is not an immediate EOL — ST still supports existing production — but the part is no longer targeted for new program wins. For a BOM freeze on an existing ECU, this means the last-time-buy window is open; secure the volume you need for the remaining production run. ## 16 MHz core and 16 KB Flash — sizing the node 16 MHz on an 8-bit core is adequate for LIN-bus polling, window-lift logic, or seat-position memory — not for high-rate sensor fusion or motor-field control. The 16 KB Flash and 2 KB RAM suit a compact firmware image with a small RTOS or a state-machine loop. The 1 KB EEPROM holds calibration constants or fault codes without external storage. ## 32-LQFP footprint and supply range Housed in a 32-LQFP (7x7 mm), surface-mount.","metaTitle":"STM8AL3146TCY 8-bit MCU, AEC-Q100, 16 MHz, 16 KB Flash","metaDescription":"STMicroelectronics STM8AL3146TCY 8-bit MCU, AEC-Q100 automotive grade, 16 MHz, 16 KB Flash, 2 KB RAM, 1 KB EEPROM, 22-ch 12-bit ADC, -40 to 125°C, 32-LQFP. NRND — sourced to order","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":"30","Core Processor":"STM8","Package / Case":"32-LQFP","Product Status":"Not For New Designs","Data Converters":"A/D 22x12b; D/A 1x12b","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~125°C(TA)","Supplier Device Package":"32-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"1.65V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0069","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fcda9e9e20a5c37a9c561bb37d935f5e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8AL3146TCY/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does ST provide for STM8AL3146TCY?","answer":"As an AEC-Q100 qualified automotive part, ST provides a PPAP (Production Part Approval Process) package and AEC-Q100 qualification report through their standard automotive documentation channel. RoHS and REACH compliance declarations are available from ST's compliance portal. Confirm the specific PPAP level with your ST field application engineer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8AL3146TCY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8AL3146TCY 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}}