{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5K36-IQR80-C3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5K36-IQR80-C3","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5K36-IQR80-C3","factsUrl":"https://icboms.com/api/mcp/products/LM3S5K36-IQR80-C3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series 32-bit MCU, LM3S5K36-IQR80-C3, 80 MHz core, 128 KB Flash, 24 KB RAM, 33 I/O, CAN/USB/SPI/I²C, -40°C to 85°C, 64-LQFP.","salesMarkdown":"The LM3S5K36-IQR80-C3: The LM3S5K36 is a 32-bit ARM Cortex-M3 microcontroller from the Texas Instruments Stellaris 5000 series, clocked at 80 MHz. 80 MHz is a mid-range operating point for a Cortex-M3. It gives you enough throughput for a real-time control loop with sensor polling and a CAN message stack running concurrently, but it is not a high-end part for heavy DSP or graphics. ## Memory and peripherals — sizing the design 128 KB of Flash and 24 KB of RAM fit firmware for a CANopen or Modbus node with a modest data table. The 33 GPIOs cover a small keypad, a few LEDs, and the bus transceiver control lines. The LM3S5K36 is marked obsolete by Texas Instruments. No last-time-buy window remains open through the franchised channel.","metaTitle":"LM3S5K36-IQR80-C3 Stellaris ARM Cortex-M3 MCU, 80MHz","metaDescription":"LM3S5K36-IQR80-C3 Stellaris ARM Cortex-M3 MCU, 80 MHz, 128 KB Flash, 24 KB RAM, industrial temp. 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":"80MHz","Series":"Stellaris® ARM® Cortex®-M3S 5000","Package":"Tray","RAM Size":"24K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, Microwire, QEI, 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":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5K36","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)":"1.08V ~ 1.32V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/11671dd68ff1b9c954a7f6e13bd75fba.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5K36-IQR80-C3/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LM3S5K36-IQR80-C3 and get a price?","answer":"We source the LM3S5K36-IQR80-C3 through our independent distribution network. Submit an RFQ for current availability and pricing — quantities and price are confirmed at quote time, not listed publicly."},{"question":"What is the closest pin-compatible alternative to LM3S5K36-IQR80-C3?","answer":"No official pin-compatible replacement from Texas Instruments is listed in the product documentation for this obsolete order code. For a new design, consider the active TM4C123 series from TI, which shares the Cortex-M4 core and a similar peripheral set but requires a layout review."},{"question":"What is LM3S5K36-IQR80-C3's listed speed?","answer":"The core runs at 80 MHz. That is the maximum clock frequency for this Cortex-M3 device, as specified in the product documentation."},{"question":"What series is LM3S5K36-IQR80-C3 from?","answer":"It belongs to the Stellaris ARM Cortex-M3S 5000 series from Texas Instruments. That series targets industrial and communication applications with a rich peripheral set."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5K36-IQR80-C3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5K36-IQR80-C3 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}}