{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2139-IQC25-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2139-IQC25-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2139-IQC25-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S2139-IQC25-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 series 32-bit MCU, LM3S2139-IQC25-A2T, 25 MHz, 64 KB Flash, 16 KB RAM, CAN, I²C, SPI, UART, 100-LQFP, -40°C to 85°C.","salesMarkdown":"## What this Stellaris Cortex-M3 brings to the board The LM3S2139-IQC25-A2T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 2000 series, clocked at 25 MHz with 64 KB of Flash and 16 KB of RAM. It includes CAN, I²C, SPI, SSI, Microwire, UART, and IrDA connectivity, plus four 10-bit ADC channels and an internal oscillator. The 100-LQFP package provides 56 GPIOs. At 25 MHz the Cortex-M3 core executes a single-cycle multiply and hardware divide. Rated from -40°C to 85°C, the MCU operates on a 2.25 V to 2.75 V supply. Internal POR and brown-out detection reset the core on power-up and during voltage sags. ## Lifecycle reality: NRND — plan your next move The LM3S2139-IQC25-A2T carries NRND status and is flagged as end-of-life hot. For existing production, source through independent distribution via RFQ. For new designs, consider current Stellaris families in the 100-LQFP footprint.","metaTitle":"LM3S2139-IQC25-A2T Stellaris ARM Cortex-M3 MCU, 25 MHz, 64 KB Flash","metaDescription":"LM3S2139-IQC25-A2T 32-bit ARM Cortex-M3 MCU from Stellaris series. 25 MHz, 64 KB Flash, 16 KB RAM, CAN/I2C/SPI/UART, -40°C to 85°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":"Texas Instruments","Speed":"25MHz","Series":"Stellaris® ARM® Cortex®-M3S 2000","Package":"Tape & Reel (TR)","RAM Size":"16K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"56","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Not For New Designs","Data Converters":"A/D 4x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S2139","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$24.9366","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0bdca6fb8c74959e2a2eb390922eeed9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S2139-IQC25-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is LM3S2139-IQC25-A2T's listed speed?","answer":"The core runs at 25 MHz, which is the maximum clock for this Stellaris Cortex-M3 device."},{"question":"What is the pinout and datasheet for LM3S2139-IQC25-A2T?","answer":"The datasheet for the LM3S2139-IQC25-A2T covers the full 100-LQFP pinout, register map, and electrical characteristics. The base product number is LM3S2139; the suffix -IQC25-A2T denotes the industrial temperature grade, 25 MHz speed, and tape-and-reel packaging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2139-IQC25-A2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S2139-IQC25-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}