{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5951-IQC80-C3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5951-IQC80-C3","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5951-IQC80-C3","factsUrl":"https://icboms.com/api/mcp/products/LM3S5951-IQC80-C3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 5000 32-Bit MCU, LM3S5951-IQC80-C3, 80MHz, 256KB Flash, 64KB RAM, 100-LQFP, -40°C to 85°C.","salesMarkdown":"## 80 MHz Cortex-M3 with 256 KB flash — the parametric ceiling The LM3S5951-IQC80-C3 is a Texas Instruments Stellaris® ARM® Cortex®-M3S 5000 series microcontroller, 32-bit single-core, clocked at 80 MHz. The 256 KB on-chip flash and 64 KB SRAM define the application memory budget — the flash holds the firmware image and constant data, while the SRAM serves stack, heap, and DMA buffers. ## Peripheral set and connectivity — CAN, USB OTG, and 16-channel ADC The connectivity block includes CANbus, USB OTG, UART/USART, I²C, SPI, SSI, IrDA, LINbus, and Microwire — enough serial interfaces to bridge a sensor array, a motor drive, and a fieldbus gateway on one chip. The 16-channel 10-bit ADC samples analog inputs without an external multiplexer; the internal oscillator eliminates the crystal for non-critical timing. 67 general-purpose I/O lines in a 100-LQFP package (14×14 mm body) leave room for a parallel LCD bus or a bank of opto-coupled inputs while still routing the serial peripherals. Brown-out detect, POR, and a watchdog timer cover the basic supervisory functions — no external reset supervisor IC needed for most designs. Texas Instruments has classified the LM3S5951-IQC80-C3 as Obsolete. A board spin is required for any pin-compatible replacement — no drop-in alternative is documented.","metaTitle":"LM3S5951-IQC80-C3 Texas Instruments ARM Cortex-M3 MCU, 80MHz","metaDescription":"Texas Instruments LM3S5951-IQC80-C3 Stellaris ARM Cortex-M3 MCU, 80MHz, 256KB Flash, 64KB RAM, 100-LQFP. 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":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"67","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 16x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5951","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.08V ~ 1.32V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d4b8f5fe4f034d9306544eb41e7eafcc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5951-IQC80-C3/alternatives.json"},"ai":{"faq":[{"question":"What is the core speed and memory configuration of LM3S5951-IQC80-C3?","answer":"The ARM Cortex-M3 core runs at 80 MHz. On-chip memory is 256 KB flash and 64 KB SRAM."},{"question":"What package does LM3S5951-IQC80-C3 use?","answer":"It is supplied in a 100-LQFP package (14×14 mm body), surface-mount, with 67 I/O lines."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5951-IQC80-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/LM3S5951-IQC80-C3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:55:03.760Z","lastPublished":"2026-07-21T02:55:03.760Z","indexable":true}}