{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S3634-IQR50-A0T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S3634-IQR50-A0T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S3634-IQR50-A0T","factsUrl":"https://icboms.com/api/mcp/products/LM3S3634-IQR50-A0T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 3000 series MCU, LM3S3634-IQR50-A0T, 32-bit single-core at 50 MHz, 128 KB Flash, 32 KB RAM, 33 I/O, 8x10b ADC, USB/UART/SPI/I2C, -40 to 85°C, 64-LQFP.","salesMarkdown":"The LM3S3634-IQR50-A0T is a Texas Instruments Stellaris ARM Cortex-M3 MCU running at 50 MHz with 128 KB of Flash and 32 KB of RAM. The peripheral set includes USB, UART, SPI, I2C, SSI, and IrDA connectivity, plus an 8-channel 10-bit ADC, PWM, DMA, and a watchdog timer. Typical applications include industrial control panels, sensor hubs, and human-machine interface front-ends where a mid-range Cortex-M3 balances throughput and power budget. ## NRND — what that means for procurement If you are starting a new design, review the Stellaris family for a current-production pin-compatible option; the base product number LM3S3634 shares the same footprint across density variants. ## 128 KB Flash / 32 KB RAM — firmware fit","metaTitle":"LM3S3634-IQR50-A0T Stellaris ARM Cortex-M3 MCU, 50 MHz, 128 KB Flash","metaDescription":"LM3S3634-IQR50-A0T Stellaris ARM Cortex-M3 MCU, 50 MHz, 128 KB Flash, 32 KB RAM, -40 to 85°C, 64-LQFP. NRND — 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 3000","Package":"Tape & Reel (TR)","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I2C, IrDA, Microwire, SPI, SSI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"33","Core Processor":"ARM® Cortex®-M3","Package / Case":"64-LQFP","Product Status":"Not For New Designs","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S3634","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.9203","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c6269147b487c4b8701eba2d848d3379.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S3634-IQR50-A0T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S3634-IQR50-A0T?","answer":"Within the Stellaris LM3S3634 base product number, density variants with larger Flash or RAM share the same 64-LQFP footprint and pinout. For a current-production recommendation, contact us with your target memory and peripheral requirements — we can match you to a suitable Stellaris or Cortex-M4 alternative from the TI portfolio."},{"question":"What is LM3S3634-IQR50-A0T's listed speed?","answer":"The core runs at 50 MHz, which is the maximum clock frequency for this Cortex-M3 device."},{"question":"What compliance documentation does this brand provide for LM3S3634-IQR50-A0T?","answer":"Texas Instruments provides RoHS and REACH compliance documentation for this part. The 64-LQFP package is lead-free and RoHS-compliant per the standard TI material declaration. We can supply the manufacturer's compliance certificate with your order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S3634-IQR50-A0T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S3634-IQR50-A0T 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}}