{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8AL3166TAY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8AL3166TAY","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8AL3166TAY","factsUrl":"https://icboms.com/api/mcp/products/STM8AL3166TAY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8A series STM8AL3166TAY, 8-bit STM8 core MCU, 16 MHz, 32 KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 30 I/O, 22x12b ADC, 1x12b DAC, I²C/SPI/UART/LIN, -40°C to 85°C, 32-LQFP.","salesMarkdown":"For a buyer managing a BOM line, this means the part can be sourced through independent distribution for ongoing builds, but the procurement team should plan a migration to a recommended successor or a pin-compatible alternative before the part reaches end-of-life. There is no official ST successor listed in the available records; the closest cross-shopped candidates are other members of the STM8A family with similar memory and peripheral sets, though pin compatibility should be verified against the target footprint. ## Memory and peripheral headroom The 1 KB EEPROM is useful for storing calibration constants, configuration parameters, or fault logs without wearing the Flash. The 22-channel 12-bit ADC gives enough analog inputs to handle multi-sensor arrays, while the single 12-bit DAC can output a control voltage or an analog signal for external actuators. The 16 MHz core speed is adequate for control loops with time constants in the millisecond range, but not for high-speed digital signal processing. ## Package and supply voltage Housed in a 32-pin LQFP (7x7 mm body), the STM8AL3166TAY is a surface-mount device with 30 general-purpose I/O pins.","metaTitle":"ST STM8AL3166TAY 8-bit MCU, 16 MHz, 32 KB Flash, NRND","metaDescription":"STMicroelectronics STM8AL3166TAY 8-bit MCU with 16 MHz core, 32 KB Flash, 2 KB RAM, 1 KB EEPROM, industrial temp -40°C to 85°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":"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 ~ 85°C (TA)","Supplier Device Package":"32-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"1.65V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9881","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fcda9e9e20a5c37a9c561bb37d935f5e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8AL3166TAY/alternatives.json"},"ai":{"faq":[{"question":"Is STM8AL3166TAY obsolete or NRND?","answer":"It remains available for existing production builds but is not intended for new project starts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8AL3166TAY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8AL3166TAY 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}}