{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1911-IQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1911-IQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1911-IQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1911-IQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series LM3S1911-IQC50-A2T, 32-bit MCU, 50MHz, 256KB Flash, 64KB RAM, 60 I/O, 100-LQFP, -40°C to 85°C.","salesMarkdown":"## Core architecture and memory map The LM3S1911-IQC50-A2T: The 60 general-purpose I/O pins, combined with I²C, SPI, UART, and IrDA connectivity, give it the flexibility to interface with multiple peripherals on a single board — displays, encoders, and serial sensors — while the internal oscillator reduces BOM count. ## Temperature grade and supply rails The 100-LQFP package (14x14 mm body) is a standard fine-pitch QFP that routes easily on a four-layer board; the exposed paddle is not present, so thermal management relies on the package's own junction-to-ambient path. Texas Instruments lists this part as obsolete.","metaTitle":"Texas Instruments LM3S1911-IQC50-A2T ARM Cortex-M3 MCU","metaDescription":"Texas Instruments LM3S1911-IQC50-A2T ARM Cortex-M3 MCU, 50MHz, 256KB Flash, 64KB RAM, 60 I/O, -40 to 85°C. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 1000","Package":"Tape & Reel (TR)","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"60","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1911","Program Memory Size":"256KB (256K 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":"$29.3153","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/76cedae791b8f19cc703d1f7efaf9731.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1911-IQC50-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is the speed of the LM3S1911-IQC50-A2T?","answer":"The core runs at 50 MHz, which is the Cortex-M3's ceiling for this device. The actual throughput depends on flash wait states and the application's instruction mix."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1911-IQC50-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/LM3S1911-IQC50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:44:43.841Z","lastPublished":"2026-07-21T02:44:43.841Z","indexable":true}}