{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2950-EQC50-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2950-EQC50-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2950-EQC50-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S2950-EQC50-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 Microcontroller, LM3S2950-EQC50-A2, 32-Bit Single-Core, 50MHz, 256KB Flash, 64K x 8 RAM, 100-LQFP, -40°C~105°C.","salesMarkdown":"## Core specs and board-fit The LM3S2950-EQC50-A2: Housed in a 100-pin LQFP (14x14 mm), it breaks out 60 GPIOs. The 2.25 V to 2.75 V supply rail is tight — the board needs a clean 2.5 V rail with ±10 % regulation, and the decoupling scheme should follow the LQFP-100 layout guidelines to keep core noise under the brown-out threshold. ## Peripheral set and integration On-chip peripherals include a brown-out detect, POR, PWM, and a watchdog timer — the brown-out reset is critical for the 2.5 V rail; if the supply dips below 2.25 V, the core holds reset cleanly without external supervisor IC. Connectivity covers CAN, I²C, SPI, SSI, UART/USART, IrDA, Microwire, and a quadrature encoder interface (QEI). The CAN and QEI blocks make this MCU a natural fit for motor-drive feedback and industrial fieldbus nodes. The internal oscillator eliminates the external crystal for most applications — but if the CAN bus needs a precise time base, a 16 MHz external resonator on the main oscillator input keeps the bit timing within 0.5 % tolerance. Texas Instruments lists the LM3S2950-EQC50-A2 as Obsolete. For existing BOM lines, this part is sourced through independent distribution channels — quantities are lot-specific and confirmed at RFQ. No second-source cross-reference is maintained; a board spin is required for any functional replacement.","metaTitle":"Texas Instruments LM3S2950-EQC50-A2 ARM Cortex-M3 MCU, 50MHz","metaDescription":"Texas Instruments LM3S2950-EQC50-A2 Stellaris ARM Cortex-M3 MCU, 50MHz, 256KB Flash, 64KB RAM, -40 to 105°C, 100-LQFP. 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 2000","Package":"Tray","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, Microwire, QEI, 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":"LM3S2950","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~105°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/58cbdf37a25073ea16048f6f3e02b171.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S2950-EQC50-A2/alternatives.json"},"ai":{"faq":[{"question":"How can I order the LM3S2950-EQC50-A2 or check availability?","answer":"The LM3S2950-EQC50-A2 is an obsolete Texas Instruments MCU."},{"question":"What is the closest pin-compatible alternative to the LM3S2950-EQC50-A2?","answer":"No pin-compatible alternative is recorded from the original manufacturer. A functional replacement requires a different package and pinout — a board redesign is necessary."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2950-EQC50-A2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S2950-EQC50-A2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:52:29.342Z","lastPublished":"2026-07-21T02:52:29.342Z","indexable":true}}