{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5P31-IQC80-C0","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5P31-IQC80-C0","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5P31-IQC80-C0","factsUrl":"https://icboms.com/api/mcp/products/LM3S5P31-IQC80-C0","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series LM3S5P31-IQC80-C0, 32-bit single-core MCU, 80 MHz, 64 KB Flash, 24 KB RAM, USB/CAN/LIN/I²C/SPI, 67 I/O, 100-LQFP, -40°C to 85°C, 1.08 V–1.32 V supply.","salesMarkdown":"The LM3S5P31-IQC80-C0: The LM3S5P31 is a Texas Instruments Stellaris ARM Cortex-M3 MCU, 32-bit single-core at 80 MHz, with 64 KB Flash and 24 KB RAM. It carries a full connectivity suite — CANbus, USB, LIN, I²C, SPI, SSI, UART — plus a 16-channel 10-bit ADC and internal oscillator. The 100-LQFP package (14x14 mm) exposes 67 I/O. Rated for -40°C to 85°C industrial temperature range on a 1.08 V to 1.32 V core supply. ## Memory budget — where 64 KB Flash and 24 KB RAM land this part 64 KB Flash and 24 KB RAM place this MCU in the mid-density tier of the Stellaris 5000 family. It fits control applications with moderate firmware — motor-control loops, CAN gateway protocol stacks, or USB-to-serial bridges. ## Connectivity and peripherals — what the bus set covers CANbus, USB, LIN, I²C, SPI, SSI, UART, IrDA, Microwire, and QEI are all on-chip. The 16-channel 10-bit ADC and PWM with dead-band support suit motor-drive feedback and sensor acquisition. Brown-out detect, POR, and DMA are built in. The 67 I/O in a 100-LQFP leave room for parallel displays or memory interfaces if needed.","metaTitle":"Texas Instruments LM3S5P31-IQC80-C0 Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"Texas Instruments LM3S5P31-IQC80-C0 Stellaris ARM Cortex-M3S 5000 MCU, 80 MHz 32-bit core, 64 KB Flash, 24 KB RAM, USB/CAN/LIN/I²C/SPI, 100-LQFP, -40°C to 85°C. Obsolete — sourced","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":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 16x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5P31","Program Memory Size":"64KB (64K 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/6eb0e448a2435bd671cb24636bc93dca.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5P31-IQC80-C0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S5P31-IQC80-C0?","answer":"The LM3S5P51-IQC80-C0 is a pin-compatible alternative with 128 KB Flash in the same 100-LQFP package and peripheral set. Verify firmware memory map before substituting."},{"question":"What is LM3S5P31-IQC80-C0's listed speed?","answer":"80 MHz core speed on the ARM Cortex-M3."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5P31-IQC80-C0","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5P31-IQC80-C0 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}}