{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1P51-IQC80-C3T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1P51-IQC80-C3T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1P51-IQC80-C3T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1P51-IQC80-C3T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series, LM3S1P51-IQC80-C3T, 32-bit single-core MCU, 80MHz, 64KB Flash, 24KB RAM, 67 I/O, 100-LQFP, -40 to 85°C.","salesMarkdown":"## Cortex-M3 at 80 MHz — what the core brings to the BOM The LM3S1P51-IQC80-C3T is a Stellaris-series ARM Cortex-M3 single-core MCU running at 80 MHz — the Cortex-M3 pipeline delivers 1.25 DMIPS/MHz, so the 80 MHz clock yields roughly 100 DMIPS of integer throughput, enough for a motor-control loop or a modest HMI display driver without an external graphics controller. ## 67 I/O and the peripheral mix — what connects where With 67 I/O lines brought out from the 100-LQFP package, this MCU can drive a parallel LCD data bus, read a quadrature encoder (QEI), and still leave pins for a UART debug console and a handful of pushbuttons and LEDs. The peripheral set includes a 16-channel 10-bit ADC, I²C, SPI, SSI, UART/USART, IrDA, Microwire, and I²S — the I²S interface is useful for streaming audio codec data without bit-banging the timing. On-chip brown-out detect, POR, and a watchdog timer mean the MCU can supervise its own supply rail and reset the system on a glitch without an external supervisor IC. ## Obsolete — what that means for a production BOM No pin-compatible drop-in replacement from TI has been published, so a board spin would be required to migrate to a different part.","metaTitle":"Texas Instruments LM3S1P51-IQC80-C3T ARM Cortex-M3, 80MHz","metaDescription":"Texas Instruments LM3S1P51-IQC80-C3T ARM Cortex-M3 MCU, 80MHz, 64KB Flash, 24KB RAM, 67 I/O, 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 1000","Package":"Tape & Reel (TR)","RAM Size":"24K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART","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":"LM3S1P51","Program Memory Size":"64KB (64K 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 ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4b537d7b08f213ef30fdcb0c13b6e56c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1P51-IQC80-C3T/alternatives.json"},"ai":{"faq":[{"question":"How do I get pricing and availability for LM3S1P51-IQC80-C3T?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time — this is a surplus-sourced obsolete part, so quantities are lot-specific and not held in open inventory."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1P51-IQC80-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/LM3S1P51-IQC80-C3T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:49:26.617Z","lastPublished":"2026-07-21T02:49:26.617Z","indexable":true}}