{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5K31-IBZ80-C3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5K31-IBZ80-C3","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5K31-IBZ80-C3","factsUrl":"https://icboms.com/api/mcp/products/LM3S5K31-IBZ80-C3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 5000 series LM3S5K31-IBZ80-C3, 32-Bit Single-Core MCU, 80MHz, 128KB FLASH, 24K x 8 RAM, 108-LFBGA, -40°C~85°C.","salesMarkdown":"The LM3S5K31-IBZ80-C3: The part integrates a 16-channel 10-bit ADC, six PWM outputs, a quadrature encoder interface (QEI) for motor feedback, and a watchdog timer, all within a 108-ball BGA package measuring 10x10 mm. ## Industrial temperature rating and BGA package — design-in constraints The 108-LFBGA package (10x10 mm body, 0.8 mm ball pitch typical for this class) demands a controlled reflow profile per J-STD-020, X-ray inspection for voiding and solder-joint integrity, and a moisture sensitivity level (MSL) bake if the sealed bag has been opened beyond the floor-life window. The core supply is 1.08 V to 1.32 V — a dedicated 1.2 V rail is required, separate from the 3.3 V I/O supply. Decoupling should follow the layout guidelines in the Stellaris hardware development kit: one 0.1 µF ceramic per supply ball pair, plus a bulk 10 µF on the board. No stock or lead-time number is published here because the supply position changes daily. If you hold an existing design with this MCU, securing a lifetime buy or identifying a pin-compatible migration path should be a priority.","metaTitle":"LM3S5K31-IBZ80-C3 Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"LM3S5K31-IBZ80-C3 is a 32-bit ARM Cortex-M3 MCU from the Stellaris 5000 series. 80 MHz core, 128 KB Flash, 24 KB SRAM, CAN/USB, industrial temp.","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":"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-C3/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5K31-IBZ80-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/LM3S5K31-IBZ80-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}}