{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5B91-IBZ80-C3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5B91-IBZ80-C3","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5B91-IBZ80-C3","factsUrl":"https://icboms.com/api/mcp/products/LM3S5B91-IBZ80-C3","rawCanonicalId":null},"summary":{"shortDescription":"Stellaris LM3S5B91-IBZ80-C3: 32-bit ARM Cortex-M3 single-core at 80 MHz, 256 KB Flash, 96 KB SRAM, 1.08–1.32 V supply, USB OTG/CAN/LIN/SPI/UART, 72 I/O, 108-LFBGA, –40 to 85°C.","salesMarkdown":"## 80 MHz Cortex-M3 with USB OTG and CAN — industrial gateway MCU The LM3S5B91-IBZ80-C3: The LM3S5B91 is a 32-bit ARM Cortex-M3 MCU clocked at 80 MHz, with 256 KB Flash and 96 KB SRAM. The 1.08–1.32 V core supply keeps dynamic power moderate for a 32-bit part at this speed. The peripheral set includes USB OTG, CAN, LIN, and multiple serial interfaces. The EBI/EMI bus allows direct connection to external memory or parallel peripherals. 72 GPIOs and a 16-channel 10-bit ADC round out the I/O. ## 256 KB Flash and 96 KB SRAM — firmware and data buffer sizing 256 KB Flash and 96 KB SRAM are available for firmware and data buffers.","metaTitle":"LM3S5B91-IBZ80-C3 Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"LM3S5B91-IBZ80-C3: 32-bit ARM Cortex-M3 at 80 MHz, 256 KB Flash, 96 KB SRAM, USB OTG/CAN/LIN, 108-LFBGA, –40 to 85°C. Obsolete — sourced to order against RFQ.","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":"108-LFBGA","Product Status":"Obsolete","Data Converters":"A/D 16x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5B91","Program Memory Size":"256KB (256K 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/a2b797d18d5d06d739b4d9059d4921cd.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5B91-IBZ80-C3/alternatives.json"},"ai":{"faq":[{"question":"What is LM3S5B91-IBZ80-C3's listed speed?","answer":"The core runs at 80 MHz, which is the maximum clock for this Cortex-M3 device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5B91-IBZ80-C3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5B91-IBZ80-C3 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}}