{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1R26-IQR80-C5T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1R26-IQR80-C5T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1R26-IQR80-C5T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1R26-IQR80-C5T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series MCU, LM3S1R26-IQR80-C5T, 32-bit, 80MHz, 256KB Flash, 48KB RAM, 64-LQFP, -40°C to 85°C.","salesMarkdown":"## Core architecture and memory map The LM3S1R26-IQR80-C5T: On-chip memory comprises 256 KB of Flash and 48 KB of SRAM — enough for moderate-size control firmware with a real-time OS footprint. Housed in a 64-LQFP package (10x10 mm body, 0.50 mm pitch), the part is surface-mount only. The 33 GPIOs bring out the peripheral set: I²C, SPI, SSI, UART/USART, IrDA, LIN, and Microwire. An internal oscillator eliminates the external crystal for the core clock, saving two pins on the layout. ## On-chip peripherals and data conversion Includes an 8-channel 10-bit ADC, brown-out detect, POR, DMA, PWM, and a watchdog timer. The DMA engine offloads the Cortex-M3 core during high-throughput serial transfers — useful when the UART or SPI is running near the bus clock. Texas Instruments lists this part as Obsolete. No official successor is recorded.","metaTitle":"LM3S1R26-IQR80-C5T Texas Instruments ARM Cortex-M3, 80MHz","metaDescription":"Texas Instruments LM3S1R26-IQR80-C5T ARM Cortex-M3 MCU, 80MHz, 256KB Flash, 48KB RAM, 64-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 1000","Package":"Tape & Reel (TR)","RAM Size":"48K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"33","Core Processor":"ARM® Cortex®-M3","Package / Case":"64-LQFP","Product Status":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1R26","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.08V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b73773867c42bdf750ae8f9b374d3db4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1R26-IQR80-C5T/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LM3S1R26-IQR80-C5T and how do I get a price?","answer":"Submit an RFQ for your target quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1R26-IQR80-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/LM3S1R26-IQR80-C5T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:49:24.146Z","lastPublished":"2026-07-21T02:49:24.146Z","indexable":true}}