{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2671-IQR50-A0","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2671-IQR50-A0","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2671-IQR50-A0","factsUrl":"https://icboms.com/api/mcp/products/LM3S2671-IQR50-A0","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 microcontroller, LM3S2671-IQR50-A0, 32-bit single-core, 50MHz, 128KB FLASH, 32K x 8 RAM, 64-LQFP, -40 to 85°C.","salesMarkdown":"## NRND — last-time-buy window for the 50 MHz Cortex-M3 The LM3S2671-IQR50-A0: For a production line already using this Stellaris ARM Cortex-M3 MCU, the NRND status means the manufacturer still supports it, but the clock is running on the last-time-buy window. New builds should plan a migration path. ## 50 MHz ARM Cortex-M3 with 128 KB flash and CAN On the connectivity side it carries CANbus, I²C, SPI, SSI, UART/USART, and IrDA — the CAN interface makes it a natural fit for industrial automation or automotive gateway nodes where a single MCU handles both fieldbus and local sensor polling. The 4-channel 10-bit ADC and the PWM timer block suit it for motor-control feedback loops or closed-loop actuator drive. ## Industrial temp range and supply rail Supply voltage is 2.25 V to 2.75 V, a narrow 2.5 V nominal rail. The board designer should budget a dedicated 2.5 V regulator rather than tapping a 3.3 V rail through a series diode — the tolerance is tight enough that a 3.3 V feed would exceed the abs-max. Housed in a 64-pin LQFP with a 10x10 mm body, the 0.5 mm pitch is routable on a two-layer board for simpler designs, though a four-layer stack-up with a dedicated ground plane is recommended for the CAN transceiver return path.","metaTitle":"TI LM3S2671-IQR50-A0 ARM Cortex-M3 MCU, 50MHz, 128KB Flash","metaDescription":"Texas Instruments LM3S2671-IQR50-A0 Stellaris ARM Cortex-M3 MCU, 50MHz, 128KB flash, 32KB RAM, 64-LQFP. NRND status. 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":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 2000","Package":"Tray","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"33","Core Processor":"ARM® Cortex®-M3","Package / Case":"64-LQFP","Product Status":"Not For New Designs","Data Converters":"A/D 4x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S2671","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$26.1562","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S2671-IQR50-A0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S2671-IQR50-A0 in this family?","answer":"The Stellaris family shares a common ARM Cortex-M3 core architecture, but pin compatibility across the LM3S2000 series varies by flash and peripheral count. Confirm the exact pinout against your PCB layout before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2671-IQR50-A0","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S2671-IQR50-A0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:51:19.228Z","lastPublished":"2026-07-21T02:51:19.228Z","indexable":true}}