{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1637-IQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1637-IQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1637-IQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1637-IQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series MCU, LM3S1637-IQC50-A2T, 32-bit single-core at 50 MHz, 128 KB Flash, 32 KB RAM, 43 I/O, 100-LQFP, -40°C to 85°C, 2.25 V to 2.75 V supply.","salesMarkdown":"The LM3S1637-IQC50-A2T: This is a mid-density, mid-speed MCU suited for motor control, sensor interfacing, and industrial protocol bridging where the Cortex-M3 core handles control loops and protocol stacks without an external processor. This means TI is no longer actively promoting this part for new projects, though existing production runs and legacy support may continue. For a buyer filling a BOM line on an active product, the NRND flag is a signal to evaluate a replacement before the part enters end-of-life. The internal oscillator is available, but for precision timing over temperature an external crystal or oscillator is recommended.","metaTitle":"TI LM3S1637-IQC50-A2T ARM Cortex-M3 MCU, 50 MHz","metaDescription":"Texas Instruments Stellaris LM3S1637-IQC50-A2T 32-bit ARM Cortex-M3 MCU, 50 MHz, 128 KB Flash, 32 KB RAM, 43 I/O, 100-LQFP, -40°C to 85°C.","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 1000","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":"I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"43","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":"LM3S1637","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":"$16.4174","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/99ee81b12912cebc4bb780a82de7e81e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1637-IQC50-A2T/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S1637-IQC50-A2T obsolete?","answer":"TI has not issued a last-time-buy notice, but the NRND status means new designs should not use this part. Existing production can continue while supply lasts, but a replacement should be qualified."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1637-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/LM3S1637-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}}