{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5P31-IQC80-C5","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5P31-IQC80-C5","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5P31-IQC80-C5","factsUrl":"https://icboms.com/api/mcp/products/LM3S5P31-IQC80-C5","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 microcontroller, LM3S5P31-IQC80-C5, 80MHz, 64KB Flash, 24K x 8 RAM, 100-LQFP.","salesMarkdown":"## 80 MHz Cortex-M3 with 64 KB flash — where this part sits in the cycle The LM3S5P31-IQC80-C5: This part is listed as obsolete by the manufacturer. ## On-chip peripherals and connectivity mix The MCU integrates 67 general-purpose I/O lines, a 16-channel 10-bit ADC, and a peripheral set that includes CANbus, USB, multiple UART/USART, I²C, SPI, SSI, and IrDA interfaces. On-chip oscillators eliminate the need for an external clock source in many designs. Additional on-chip blocks include brown-out detect, POR, DMA, PWM, and a watchdog timer — enough to run a small control loop or communication gateway without external supervisory silicon. ## Package and supply rails The 0.50 mm pitch demands careful fan-out on the PCB — a 4-layer board is typical for routing all 67 I/O and the mixed-signal ADC traces.","metaTitle":"TI LM3S5P31-IQC80-C5 ARM Cortex-M3 MCU, 80MHz, 64KB Flash","metaDescription":"Texas Instruments LM3S5P31-IQC80-C5 Stellaris ARM Cortex-M3 MCU, 80MHz, 64KB Flash, 24K RAM, 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":"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-C5/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LM3S5P31-IQC80-C5?","answer":"This part is obsolete from Texas Instruments. Submit a quote request against your BOM quantity."},{"question":"What is the closest pin-compatible alternative to LM3S5P31-IQC80-C5?","answer":"No pin-compatible direct replacement is documented by Texas Instruments for this order code. The Stellaris family includes other Cortex-M3 parts with different memory or peripheral configurations, but a board spin or firmware migration is required to use them."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5P31-IQC80-C5","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-C5 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:55:55.418Z","lastPublished":"2026-07-21T02:55:55.418Z","indexable":true}}