{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1R26-IQR80-C5","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1R26-IQR80-C5","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1R26-IQR80-C5","factsUrl":"https://icboms.com/api/mcp/products/LM3S1R26-IQR80-C5","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series LM3S1R26-IQR80-C5, 32-bit single-core MCU, 80MHz, 256KB Flash, 48K x 8 SRAM, 33 I/O, 64-LQFP, -40 to 85°C, 1.08V to 3.6V supply.","salesMarkdown":"The LM3S1R26-IQR80-C5: This part is aimed at industrial control, motor drives, building automation, and similar embedded systems that need a mid-range Cortex-M3 with a broad peripheral set. The 80 MHz core clock gives this MCU enough throughput for real-time control loops, protocol stacks, and moderate DSP tasks without needing a separate co-processor. The single-cycle multiply and hardware divide in the Cortex-M3 help keep interrupt latency low — useful for PWM generation and motor commutation. At this speed, the Flash wait state configuration matters: the part's internal Flash requires zero wait states up to around 40 MHz, and one wait state above that, per the core's standard timing. Budget for that in your timing closure analysis. ## Package and footprint note Housed in a 64-LQFP package with a 10x10 mm body, this part reflows with standard lead-free profiles.","metaTitle":"TI LM3S1R26-IQR80-C5 Stellaris ARM Cortex-M3 MCU, 80MHz","metaDescription":"Texas Instruments LM3S1R26-IQR80-C5 Stellaris ARM Cortex-M3 MCU, 80MHz, 256KB Flash, 48KB SRAM, 33 I/O, 64-LQFP, -40 to 85°C.","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":"Tray","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-C5/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S1R26-IQR80-C5 obsolete?","answer":"Yes. Texas Instruments lists the LM3S1R26-IQR80-C5 as Obsolete. No official replacement part number is provided. For existing BOM lines, the part can be sourced through independent distribution against an RFQ."},{"question":"Where can I buy LM3S1R26-IQR80-C5?","answer":"No stock or lead-time figures are published here."},{"question":"What are the specifications of LM3S1R26-IQR80-C5?","answer":"Package is 64-LQFP (10x10 mm)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1R26-IQR80-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/LM3S1R26-IQR80-C5 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}