{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5D51-IQC80-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5D51-IQC80-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5D51-IQC80-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5D51-IQC80-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series LM3S5D51-IQC80-A2T, 32-bit single-core MCU, 80 MHz, 512 KB Flash, 96 KB SRAM, 100-LQFP, -40°C to 85°C, 67 I/O, USB OTG, CAN, multiple serial interfaces.","salesMarkdown":"## 80 MHz core and 512 KB Flash — what they mean for fit The 80 MHz ARM Cortex-M3 core delivers enough throughput for real-time control loops, protocol stacks (USB, CAN, TCP/IP offload), and moderate DSP tasks. The 512 KB Flash is generous for firmware with a full communication stack and application logic; the 96 KB SRAM supports multiple buffers and data queues without external memory. The 67 I/O pins, combined with the ADC and serial interfaces, make this a single-chip solution for a control board that needs to talk to sensors, actuators, and a host computer over USB or CAN. Supply voltage is 3.0 V to 3.6 V, typical for a 3.3 V system rail.","metaTitle":"LM3S5D51-IQC80-A2T Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"LM3S5D51-IQC80-A2T Stellaris ARM Cortex-M3S 5000 MCU, 80 MHz, 512 KB Flash, 96 KB RAM, 100-LQFP, -40°C 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":"96K 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 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5D51","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":"https://cdn.icboms.com/1b9a7c290cdcfa050d2e8b2a487b6b80.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5D51-IQC80-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement or equivalent for LM3S5D51-IQC80-A2T?","answer":"For a new design, consider current-generation Cortex-M3 or Cortex-M4 MCUs from TI or other manufacturers with similar peripheral sets (USB OTG, CAN, 512 KB Flash). For sustaining an existing BOM, sourcing through independent distribution is the practical option."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5D51-IQC80-A2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5D51-IQC80-A2T 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}}