{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5C31-IBZ80-A1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5C31-IBZ80-A1","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5C31-IBZ80-A1","factsUrl":"https://icboms.com/api/mcp/products/LM3S5C31-IBZ80-A1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 LM3S5C31-IBZ80-A1, 32-bit single-core MCU at 80 MHz, 512 KB Flash, 64 KB SRAM, 67 I/O, CAN/USB/LIN/SPI/SSI, 3.0–3.6 V supply, -40 to 85 °C, 108-LFBGA tray.","salesMarkdown":"The Texas Instruments LM3S5C31-IBZ80-A1 is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris 5000 series, clocked at 80 MHz. It carries 512 KB of Flash program memory and 64 KB of SRAM, with 67 general-purpose I/O lines. ## Sourcing posture","metaTitle":"Texas Instruments LM3S5C31-IBZ80-A1 ARM Cortex-M3 MCU, 80 MHz","metaDescription":"Texas Instruments LM3S5C31-IBZ80-A1 Stellaris ARM Cortex-M3 MCU: 80 MHz, 512 KB Flash, 64 KB SRAM, 67 I/O, CAN/USB/LIN, -40 to 85°C, 108-BGA. Obsolete — sourced to order against RF","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":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"67","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Obsolete","Data Converters":"A/D 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5C31","Program Memory Size":"512KB (512K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"108-BGA (10x10)","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/LM3S5C31-IBZ80-A1/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LM3S5C31-IBZ80-A1 and get a price?","answer":"We source this obsolete MCU through independent distribution. Submit an RFQ for current availability and pricing — no minimum order, and quotes are confirmed at time of request."},{"question":"What is the closest pin-compatible alternative to LM3S5C31-IBZ80-A1?","answer":"No official pin-compatible replacement exists from Texas Instruments for this specific Stellaris 5000 series device. For new designs, consider a current Cortex-M4 or M7 MCU with similar CAN/USB/LIN peripherals; for legacy BOMs, we source the original part against an RFQ."},{"question":"What is LM3S5C31-IBZ80-A1's listed speed?","answer":"The core runs at 80 MHz, delivering approximately 100 DMIPS on the Cortex-M3 pipeline."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5C31-IBZ80-A1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5C31-IBZ80-A1 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}}