{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1751-EQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1751-EQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1751-EQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1751-EQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 microcontroller, LM3S1751-EQC50-A2T, 32-bit single-core, 50MHz, 128KB Flash, 64K x 8 RAM, 100-LQFP, -40°C to 105°C.","salesMarkdown":"## What the 50 MHz Cortex-M3 core means for your control loop The LM3S1751-EQC50-A2T is a Stellaris ARM Cortex-M3 MCU clocked at 50 MHz — the core delivers one cycle per instruction for most ALU ops, so a PID loop or state machine runs at deterministic throughput without a cache line fill penalty. The 128 KB on-chip Flash (128K x 8) and 64K x 8 SRAM leave room for a modest RTOS and application stack, but the 2.25 V to 2.75 V supply rail means the board's 3.3 V regulator needs a down-converter or a separate LDO for this rail. Operating from -40°C to 105°C, this part fits industrial enclosures and engine-bay-adjacent electronics where the ambient sees thermal cycling. ## Lifecycle reality — obsolete, not orphaned Texas Instruments lists the LM3S1751-EQC50-A2T as Obsolete. The connectivity block includes I²C, SPI, SSI, UART/USART, IrDA, and Microwire — enough for a sensor hub or a motor-drive comms interface. On-chip peripherals include brown-out detect/reset, POR, PWM, and a watchdog timer, so the MCU can supervise its own supply and drive a PWM-controlled load without an external PWM generator.","metaTitle":"LM3S1751-EQC50-A2T Texas Instruments ARM Cortex-M3 MCU","metaDescription":"Texas Instruments LM3S1751-EQC50-A2T Stellaris ARM Cortex-M3 MCU, 50MHz, 128KB Flash, 64K x 8 RAM, 100-LQFP.","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":"56","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 4x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1751","Program Memory Size":"128KB (128K 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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8d259102b4710400d95dede9403b7b03.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LM3S1751-EQC50-A2T and how do I get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — quantities are lot-specific and confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1751-EQC50-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/LM3S1751-EQC50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:44:00.627Z","lastPublished":"2026-07-21T02:44:00.627Z","indexable":true}}