{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1751-IQC50-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1751-IQC50-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1751-IQC50-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S1751-IQC50-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series MCU, LM3S1751-IQC50-A2, 32-bit single-core, 50MHz, 128KB flash, 64KB SRAM, 56 I/O, 100-LQFP.","salesMarkdown":"## Core architecture and memory budget The LM3S1751-IQC50-A2: That puts it in the sweet spot for control-loop and protocol-handling tasks that need more throughput than a Cortex-M0 but don't require the DSP extensions of a Cortex-M4. On-chip memory is 128 KB of flash for program storage and 64 KB of SRAM for data. The 64 KB SRAM is generous for a Cortex-M3 at this price point — enough to hold a full TCP/IP stack buffer or a moderate data-logging array without external memory. Serial interfaces include I²C, SPI, SSI, UART/USART, plus IrDA and Microwire — covering the common sensor, display, and memory protocols. The SSI port is useful for synchronous serial peripherals like ADCs or DACs that need a dedicated frame sync. A 4-channel 10-bit ADC is integrated, sufficient for reading analog sensors or potentiometers in a control panel. With 56 general-purpose I/O lines in a 100-LQFP package, the pinout leaves room for a parallel LCD bus or a memory-mapped FPGA interface alongside the serial peripherals. ## Industrial temperature and supply rails The 2.25 V to 2.75 V supply means the core runs from a 2.5 V rail — common in dual-supply systems where the I/O bank runs at 3.3 V through a separate regulator. Brown-out detection and POR are built in, so the reset circuit can be minimal.","metaTitle":"LM3S1751-IQC50-A2 Texas Instruments MCU, ARM Cortex-M3 50MHz","metaDescription":"Texas Instruments LM3S1751-IQC50-A2 Stellaris ARM Cortex-M3 MCU, 50MHz, 128KB flash, 64KB SRAM, 100-LQFP. Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 1000","Package":"Tray","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"56","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Active","Data Converters":"A/D 4x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1751","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$35.1631","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8d259102b4710400d95dede9403b7b03.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1751-IQC50-A2/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum clock speed of the LM3S1751-IQC50-A2?","answer":"The core runs at 50 MHz. This is the rated speed for the -50 suffix in the order code."},{"question":"What package does the LM3S1751-IQC50-A2 use?","answer":"It comes in a 100-pin LQFP with a 14x14 mm body. The supplier device package is 100-LQFP (14x14)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1751-IQC50-A2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1751-IQC50-A2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}