{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5791-IBZ80-C3T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5791-IBZ80-C3T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5791-IBZ80-C3T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5791-IBZ80-C3T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series LM3S5791-IBZ80-C3T, 32-bit MCU, 80 MHz, 128 KB Flash, 64K x 8 SRAM, 72 I/O, USB OTG, CAN, 108-BGA, -40 to 85°C.","salesMarkdown":"Texas Instruments has discontinued this Stellaris-series MCU, and it is no longer available through authorized channels for new production. The part can be sourced through independent distribution on a last-time-buy or surplus basis. ## 108-ball BGA — footprint and rework notes The 10x10 mm array with a 0.8 mm ball pitch is common for this density tier. For rework, standard BGA profiling applies: pre-bake at 125°C for 24 hours if the moisture barrier has been compromised (MSL 3 handling assumed). A via-in-pad design with microvias under the BGA is recommended for signal routing; the core voltage supply (1.08 V to 1.32 V) needs dedicated low-inductance decoupling close to the BGA pads.","metaTitle":"LM3S5791-IBZ80-C3T Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"Texas Instruments LM3S5791-IBZ80-C3T 32-bit ARM Cortex-M3 MCU, 80 MHz core, 128 KB Flash, 64K x 8 SRAM, 72 I/O, USB OTG, CAN, -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 5000","Package":"Tape & Reel (TR)","RAM Size":"64K 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":"108-LFBGA","Product Status":"Obsolete","Data Converters":"A/D 16x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5791","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"108-BGA (10x10)","Voltage - Supply (Vcc/Vdd)":"1.08V ~ 1.32V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/603e2ee396c884705197257f18e9e4d3.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5791-IBZ80-C3T/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for LM3S5791-IBZ80-C3T?","answer":"For a pin-compatible alternative, evaluate other members of the Stellaris LM3S family with similar BGA footprints and peripheral sets; verify exact compatibility against the datasheet before specifying."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5791-IBZ80-C3T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5791-IBZ80-C3T 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}}