{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5D91-IQC80-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5D91-IQC80-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5D91-IQC80-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S5D91-IQC80-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 5000 series MCU, LM3S5D91-IQC80-A2, 32-bit single-core, 80 MHz, 512 KB Flash, 96 KB RAM, 100-LQFP, -40°C to 85°C.","salesMarkdown":"The LM3S5D91-IQC80-A2: There is also a 16-channel 12-bit ADC, PWM outputs, a quadrature encoder interface (QEI) for motor feedback, and an I²S audio interface. With 72 general-purpose I/O pins, it can handle a mix of sensors, actuators, and human-machine interfaces in a single-chip design. The LM3S5D91-IQC80-A2 is listed as Obsolete. Texas Instruments has discontinued production, and no last-time-buy window remains open through the factory channel. Availability and pricing are confirmed only at the time of quotation, and lead times depend entirely on what is physically on hand in the channel. For repair, retrofit, or short-run production, sourcing this exact part through independent distribution is the practical path.","metaTitle":"LM3S5D91-IQC80-A2 Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"LM3S5D91-IQC80-A2 is a 32-bit ARM Cortex-M3 MCU from the Stellaris series, rated at 80 MHz with 512 KB Flash and 96 KB RAM.","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":"96K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"72","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5D91","Program Memory Size":"512KB (512K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"3V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5D91-IQC80-A2/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S5D91-IQC80-A2 obsolete?","answer":"Yes, the LM3S5D91-IQC80-A2 is listed as Obsolete. Texas Instruments has discontinued production, and the part is no longer available through the factory channel. It can be sourced through independent distributors who hold surplus or verified inventory."},{"question":"What is the replacement for LM3S5D91-IQC80-A2?","answer":"Pin-compatible Stellaris family members (e.g., LM3S9D90, LM3S5B91) may be considered, but a full design review is required to confirm fit. For existing BOMs, sourcing the exact part through independent distribution is the recommended approach."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5D91-IQC80-A2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5D91-IQC80-A2 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}}