{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8AF6223PAX","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8AF6223PAX","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8AF6223PAX","factsUrl":"https://icboms.com/api/mcp/products/STM8AF6223PAX","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8A series STM8AF6223PAX, 8-bit MCU, 16 MHz, 8KB Flash, 1K x 8 RAM, 640 x 8 EEPROM, I²C/LINbus/SPI/UART, 20-TSSOP, -40 to 85°C, AEC-Q100.","salesMarkdown":"It runs at 16 MHz from an internal oscillator, with 8 KB of Flash program memory, 1 KB of SRAM, and 640 bytes of EEPROM — enough for a body-control module, LIN slave node, or sensor hub that does not need a full 32-bit core. The peripheral set includes I²C, LINbus, SPI, and UART/USART, plus a 5-channel 10-bit ADC, PWM, brown-out reset, and a watchdog timer, all in a 20-pin TSSOP package. That means ST still manufactures it for existing production, but they will not qualify it into new platforms. For a new design, the official recommendation is to evaluate a current-production STM8A or STM8L alternative with a similar peripheral set and pin count. ## 16 MHz core, 8 KB Flash — sizing the headroom The 16 MHz clock rate is typical for an 8-bit MCU handling LIN messaging, switch debouncing, or PWM generation at a few kilohertz. The 1 KB SRAM is tight for buffering more than a few CAN/LIN frames; plan your RAM budget around that limit. ## 20-TSSOP footprint and supply range With 16 I/O lines, you get enough pins for a few sensor inputs, a LIN transceiver interface, and a couple of LED or relay drivers.","metaTitle":"STM8AF6223PAX 8-bit MCU, 16 MHz, AEC-Q100, 20-TSSOP","metaDescription":"STMicroelectronics STM8AF6223PAX automotive 8-bit MCU, 16 MHz core, 8 KB Flash, 1 KB RAM, 640 B EEPROM, AEC-Q100.","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":"Tape & Reel (TR) Cut Tape (CT)","RAM Size":"1K x 8","Core Size":"8-Bit","EEPROM Size":"640 x 8","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"16","Core Processor":"STM8A","Package / Case":"20-TSSOP (0.173\\\", 4.40mm Width)","Product Status":"Not For New Designs","Data Converters":"A/D 5x10b","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 ~ 85°C (TA)","Supplier Device Package":"20-TSSOP","Voltage - Supply (Vcc/Vdd)":"3V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7bf7b21f4a1a887507e01c07ab726cf0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8AF6223PAX/alternatives.json"},"ai":{"faq":[{"question":"Is STM8AF6223PAX obsolete or NRND?","answer":"It is still available for existing production runs through independent distribution, but ST will not qualify it into new designs. For a replacement, evaluate current-production STM8A or STM8L MCUs with similar Flash and peripheral options."},{"question":"What are the operating temperature and automotive grade of STM8AF6223PAX?","answer":"The part is AEC-Q100 qualified, making it suitable for automotive body, cabin, and chassis-domain applications that stay within that temperature window."},{"question":"Does STM8AF6223PAX support LINbus and I2C?","answer":"Yes, the connectivity block includes I²C, LINbus, SPI, and UART/USART interfaces. The 5-channel 10-bit ADC can handle analog sensor inputs alongside the digital interfaces."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8AF6223PAX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8AF6223PAX 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}}