{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8AL3166TCY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8AL3166TCY","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8AL3166TCY","factsUrl":"https://icboms.com/api/mcp/products/STM8AL3166TCY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8AL3166TCY, Automotive AEC-Q100 STM8A series, 8-bit MCU, 16 MHz, 32 KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 30 I/O, 22x12b ADC, 1x12b DAC, 1.65V–3.6V, -40 to 125°C, 32-LQFP.","salesMarkdown":"## Automotive 8-bit MCU with wide analog front-end The STM8AL3166TCY: The standout analog peripheral set includes 22 channels of 12-bit ADC and a single 12-bit DAC, which is unusually dense for an 8-bit MCU and suits designs that digitise multiple sensor inputs without external muxing. ## Supply, connectivity, and package The 30 general-purpose I/O lines are brought out in a 32-LQFP package (7x7 mm body), which is a standard footprint for space-constrained ECU boards. That means STMicroelectronics has flagged it for eventual discontinuation — new production designs should not start with this order code, and existing BOM lines need a qualified replacement identified before the last-time-buy window closes. The official successor is not published in the available records, so the replacement path will depend on whether the application can migrate to a newer STM8A variant (pin-compatible across the family) or requires a full redesign to a different MCU architecture.","metaTitle":"STM8AL3166TCY 8-bit MCU, AEC-Q100, 16 MHz, 32 KB Flash, NRND","metaDescription":"STMicroelectronics STM8AL3166TCY automotive 8-bit MCU, 16 MHz, 32 KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 22-ch 12-bit ADC, -40 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":"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":"32KB (32K 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":"$3.8400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fcda9e9e20a5c37a9c561bb37d935f5e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8AL3166TCY/alternatives.json"},"ai":{"faq":[{"question":"Is STM8AL3166TCY obsolete?","answer":"Existing production can continue for now, but new designs should select a replacement."},{"question":"What is the replacement for STM8AL3166TCY?","answer":"The STM8A family includes pin-compatible variants with different Flash/RAM densities; a design review with the STM8A portfolio is the first step to find a drop-in or near-drop-in alternative."},{"question":"Is STM8AL3166TCY RoHS compliant?","answer":"The part is listed as RoHS compliant per STMicroelectronics' standard automotive product line. No explicit RoHS certificate is in this record, but the AEC-Q100 qualification typically implies RoHS compliance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8AL3166TCY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8AL3166TCY 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}}