{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5K31-IQC80-C3T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5K31-IQC80-C3T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5K31-IQC80-C3T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5K31-IQC80-C3T","rawCanonicalId":null},"summary":{"shortDescription":"LM3S5K31-IQC80-C3T, Stellaris ARM Cortex-M3S 5000 series, 32-bit MCU, 80 MHz, 128 KB Flash, 24K x 8 SRAM, 67 I/O, CAN/USB/UART, 100-LQFP, -40 to 85°C.","salesMarkdown":"The LM3S5K31-IQC80-C3T is a 32-bit ARM Cortex-M3 microcontroller from TI's Stellaris 5000 series, clocked at 80 MHz with 128 KB of Flash program memory and 24K x 8 SRAM. It carries a full-set peripheral list: CAN, USB, multiple UART/USART, I²C, SPI, and a 16-channel 10-bit ADC, making it suited for industrial control nodes, motor-drive interfaces, and sensor hubs that need a single-chip CAN or USB bridge. The industrial temperature range (-40 to 85°C) supports outdoor telecom cabinets, factory-floor PLC I/O slices, and under-hood automotive modules. ## 80 MHz — what it buys you on the bus 80 MHz core speed with a single-cycle multiply. The 24K x 8 SRAM is tight for large data buffers. 100-pin LQFP (14x14 mm body), surface-mount. The 67 GPIOs are distributed across all four sides.","metaTitle":"LM3S5K31-IQC80-C3T Stellaris ARM Cortex-M3 MCU, 80 MHz, 128 KB Flash","metaDescription":"LM3S5K31-IQC80-C3T Stellaris ARM Cortex-M3 MCU, 80 MHz core, 128 KB Flash, 24K x 8 SRAM, industrial temp -40 to 85°C. 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":"Tape & Reel (TR)","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":"67","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 16x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5K31","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)":"1.08V ~ 1.32V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ced2e58921dfaf5da21dc5dff9cf3a05.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5K31-IQC80-C3T/alternatives.json"},"ai":{"faq":[{"question":"What is the speed rating of this MCU?","answer":"The LM3S5K31-IQC80-C3T runs at 80 MHz, which is sufficient for real-time control loops and moderate protocol stacks."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5K31-IQC80-C3T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5K31-IQC80-C3T 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}}