{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S6950-IQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S6950-IQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S6950-IQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S6950-IQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 6000 series LM3S6950-IQC50-A2T, 32-bit single-core MCU, 50 MHz, 256 KB Flash, 64 KB SRAM, 46 I/O, Ethernet + UART/SPI/I2C, 100-LQFP, -40°C to 85°C.","salesMarkdown":"## Stellaris Cortex-M3 with integrated Ethernet The Texas Instruments LM3S6950-IQC50-A2T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 6000 series, clocked at 50 MHz with 256 KB of Flash program memory and 64 KB of SRAM. ## 256 KB Flash and 64 KB SRAM — firmware and data budget The 256 KB Flash is sized for moderate-complexity firmware — enough for a TCP/IP stack, a real-time OS kernel, and application logic without external memory. The 64 KB SRAM supports packet buffering for Ethernet traffic and local data logging; designs that exceed this budget will need to move to a higher-density sibling or add external SRAM. ## 100-LQFP package — footprint and rework For rework or repair, a hot-air station with a fine nozzle and preheating from the board underside is recommended to avoid lifted pads. The 46 I/O lines are distributed around the perimeter, which simplifies routing on a two-layer board but demands attention to signal-integrity for the Ethernet differential pairs.","metaTitle":"LM3S6950-IQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash","metaDescription":"Obsolete LM3S6950-IQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash, 64 KB SRAM, Ethernet, -40°C to 85°C. Sourced to order against an RFQ through independent distribution","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 6000","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":"Ethernet, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"46","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S6950","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/35b7bddf652db86cd5172aa032feb8f0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S6950-IQC50-A2T/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S6950-IQC50-A2T obsolete?","answer":"Yes, the LM3S6950-IQC50-A2T is officially marked as obsolete by Texas Instruments. It is no longer in production and is only available through surplus or broker channels."},{"question":"What is the replacement for LM3S6950-IQC50-A2T?","answer":"No official replacement is listed in the available records. For new designs, consider a pin-compatible Stellaris family member with similar Ethernet and memory specifications, or migrate to a current TI Cortex-M4F or M7 device with Ethernet."},{"question":"Where can I buy LM3S6950-IQC50-A2T?","answer":"This obsolete part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm offer."},{"question":"What are the specifications of LM3S6950?","answer":"Key specifications: 32-bit ARM Cortex-M3 core at 50 MHz, 256 KB Flash, 64 KB SRAM, integrated Ethernet MAC/PHY, 46 I/O, operating voltage 2.25 V to 2.75 V, temperature range -40°C to 85°C, in a 100-LQFP package."},{"question":"Is LM3S6950-IQC50-A2T compatible with LM3S6950-IQC50?","answer":"The LM3S6950-IQC50-A2T is a tape-and-reel variant of the base LM3S6950-IQC50 device. The -A2T suffix indicates packaging and reel quantity; the silicon, pinout, and specifications are identical. They are functionally interchangeable on the same PCB footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S6950-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/LM3S6950-IQC50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}