{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2637-IQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2637-IQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2637-IQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S2637-IQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 series 32-bit MCU, LM3S2637-IQC50-A2T, 50 MHz, 128 KB Flash, 32 KB RAM, 46 I/O, CAN/I²C/SPI/UART, -40 to 85°C, 100-LQFP.","salesMarkdown":"The LM3S2637-IQC50-A2T is a 32-bit ARM Cortex-M3 microcontroller from TI's Stellaris series, running at 50 MHz with 128 KB of Flash and 32 KB of RAM. If the application needs over-the-air updates or a larger protocol stack (e.g., full EtherCAT slave), the Flash budget gets tight — the designer should budget for external SPI Flash or step up to a higher-density sibling. The 32 KB RAM includes the stack and data buffers; a heavy frame buffer or large lookup table will require external SRAM. ## Lifecycle reality: NRND For an existing BOM line, the part remains available through independent distribution — we source and quote it to order against an RFQ.","metaTitle":"LM3S2637-IQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 128 KB Flash","metaDescription":"LM3S2637-IQC50-A2T is a 32-bit ARM Cortex-M3 MCU from the Stellaris series, rated at 50 MHz with 128 KB Flash and 32 KB RAM. NRND status; sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 2000","Package":"Tape & Reel (TR)","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"CANbus, 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":"Not For New Designs","Data Converters":"A/D 4x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S2637","Program Memory Size":"128KB (128K 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":"$16.6967","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S2637-IQC50-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S2637-IQC50-A2T?","answer":"TI's Stellaris family includes several pin-compatible options in the same 100-LQFP package, such as the LM3S2637-IQC50-A2 (tray) or higher-density siblings like the LM3S2965. For a precise cross-reference, check the TI Stellaris selection guide or contact us with your firmware memory requirements."},{"question":"What is LM3S2637-IQC50-A2T's listed speed?","answer":"The core runs at 50 MHz, as listed in the specifications. This is the maximum clock frequency for the ARM Cortex-M3 core on this device."},{"question":"What series is LM3S2637-IQC50-A2T from?","answer":"It belongs to the Stellaris® ARM® Cortex®-M3S 2000 series from Texas Instruments."},{"question":"What compliance documentation does TI provide for LM3S2637-IQC50-A2T?","answer":"TI provides RoHS and REACH compliance declarations. The 100-LQFP package is lead-free per TI's standard transition. No UL or IEC certification is listed for this IC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2637-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/LM3S2637-IQC50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}