{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5K31-IBZ80-C5T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5K31-IBZ80-C5T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5K31-IBZ80-C5T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5K31-IBZ80-C5T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 5000 series 32-bit MCU, LM3S5K31-IBZ80-C5T, 80MHz, 128KB Flash, 24KB RAM, 67 I/O, CAN/USB/I²C/SPI/UART, -40°C to 85°C, 108-BGA.","salesMarkdown":"## 80 MHz Cortex-M3 with industrial connectivity The Texas Instruments LM3S5K31-IBZ80-C5T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 5000 series, clocked at 80 MHz with 128 KB of Flash and 24 KB of RAM. It carries a full peripheral set including CAN, USB, I²C, SPI, SSI, UART, IrDA, and a quadrature encoder interface, plus 16-channel 10-bit ADC and PWM. The Cortex-M3 core runs at 80 MHz. The 24 KB RAM is the tighter resource. ## Connectivity and I/O in a 10x10 BGA The 108-ball BGA (10x10 mm) provides 67 GPIOs. Connectivity includes CAN, USB, I²C, SPI, SSI, UART, IrDA, Microwire, and QEI.","metaTitle":"LM3S5K31-IBZ80-C5T Stellaris ARM Cortex-M3 MCU, 80MHz","metaDescription":"Obsolete LM3S5K31-IBZ80-C5T 32-bit ARM Cortex-M3 MCU, 80MHz, 128KB Flash, 24KB RAM, CAN/USB, -40 to 85°C. 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":"108-LFBGA","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":"108-BGA (10x10)","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-IBZ80-C5T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S5K31-IBZ80-C5T?","answer":"No official pin-compatible successor is listed in the available records. The Stellaris family was succeeded by TI's Tiva C series, but pin compatibility varies by package and peripheral set. A design review with the target Tiva C part number is recommended before substitution."},{"question":"What is LM3S5K31-IBZ80-C5T's listed speed?","answer":"The core is rated at 80 MHz, delivering approximately 100 DMIPS on the Cortex-M3 pipeline."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5K31-IBZ80-C5T","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-IBZ80-C5T 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}}