{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S6911-IQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S6911-IQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S6911-IQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S6911-IQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 6000 series MCU, LM3S6911-IQC50-A2T, 50 MHz, 256 KB Flash, 64 KB RAM, Ethernet MAC+PHY, 46 I/O, 2.25-2.75 V, -40 to 85°C, 100-LQFP.","salesMarkdown":"## 50 MHz Cortex-M3 with integrated Ethernet — what it means for the BOM The LM3S6911-IQC50-A2T: The 64 KB RAM is the number to watch: after the TCP/IP stack, Ethernet buffers, and RTOS kernel footprint, the remaining heap for the application is typically 20–30 KB — enough for a lightweight web server or Modbus TCP gateway, but tight for a full TLS handshake without external RAM. This saves roughly 30–40 mm² of board area and about $1.50–$2.00 in BOM cost at volume, though the PHY's power consumption (typically 150–200 mW active) must be budgeted in the system thermal envelope. The 100-LQFP package (14x14 mm, 0.5 mm pitch) is hand-solderable and inspectable — no X-ray needed. A 4-layer PCB with a solid ground plane under the QFP is sufficient for signal integrity on the Ethernet differential pairs. ## Lifecycle and sourcing posture The base product number LM3S6911 covers multiple temperature and package variants. If the -IQC50-A2T suffix (industrial temp, 50 MHz, tape-and-reel) is the specific BOM line, the tray-pack version (LM3S6911-IQC50-A2) is the drop-in alternative for hand-assembly or low-volume builds — same die, same electricals, different shipping media.","metaTitle":"TI LM3S6911-IQC50-A2T ARM Cortex-M3 MCU, 50 MHz","metaDescription":"Texas Instruments LM3S6911-IQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash, 64 KB RAM, Ethernet MAC+PHY, -40 to 85°C, 100-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 6000","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"46","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Active","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S6911","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":"$43.1100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f0d1cd3dce82f535fc087498a0841b14.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S6911-IQC50-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S6911-IQC50-A2T?","answer":"The extra Flash matters if the application firmware exceeds 256 KB after adding Ethernet services."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S6911-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/LM3S6911-IQC50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}