{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5P31-IQC80-C5T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5P31-IQC80-C5T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5P31-IQC80-C5T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5P31-IQC80-C5T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series, LM3S5P31-IQC80-C5T, 32-bit single-core MCU, 80 MHz, 64 KB Flash, 24 KB SRAM, USB/CAN/LIN/I²C/SPI/SSI/UART, 67 I/O, 16×10-bit ADC, 1.08–1.32 V supply, 100-LQFP, -40 to 85°C, Tape & Reel.","salesMarkdown":"## 80 MHz Cortex-M3 with USB and CAN — what this part brings to a control board The Texas Instruments LM3S5P31-IQC80-C5T is a Stellaris ARM Cortex-M3 32-bit single-core MCU clocked at 80 MHz, with 64 KB Flash and 24 KB SRAM. It carries a full industrial-connectivity set: CANbus, USB, LIN, I²C, SPI, SSI, UART, and a 16-channel 10-bit ADC. The 67 GPIOs and internal oscillator let it handle a mixed-signal control board without an external clock source. Rated -40 to 85°C in a 100-LQFP package, it fits factory automation, motor-drive front-ends, and automotive gateway modules where the Stellaris family was originally specified. 80 MHz is the core speed for this Cortex-M3. That puts it in the mid-range of the Stellaris 5000 series — fast enough to run a CANopen stack, a USB HID class, and a PID loop on a single core without a scheduler fight.","metaTitle":"Texas Instruments LM3S5P31-IQC80-C5T ARM Cortex-M3 MCU, 80 MHz","metaDescription":"Texas Instruments Stellaris LM3S5P31-IQC80-C5T ARM Cortex-M3 32-bit MCU at 80 MHz, 64 KB Flash, 24 KB SRAM, USB/CAN/LIN/I²C/SPI/UART, 67 I/O, 16×10-bit ADC, -40 to 85°C, 100-LQFP.","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":"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-C5T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S5P31-IQC80-C5T?","answer":"There is no official direct-replacement order code from TI. The Stellaris LM3S family shares pin-compatible footprints across density options within the same package size, but you must verify the exact memory size, peripheral set, and firmware compatibility before substituting."},{"question":"What is LM3S5P31-IQC80-C5T's listed speed?","answer":"The core runs at 80 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5P31-IQC80-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/LM3S5P31-IQC80-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}}