{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5749-IQC50-A0T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5749-IQC50-A0T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5749-IQC50-A0T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5749-IQC50-A0T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series LM3S5749-IQC50-A0T, 32-bit single-core MCU, 50MHz, 128KB Flash, 64KB SRAM, 61 I/O, CANbus/USB/I²C/SPI/UART, 100-LQFP, -40°C to 85°C.","salesMarkdown":"## NRND — plan your BOM migration The LM3S5749-IQC50-A0T: This is the official signal that the part remains available for existing production runs but is not intended for new design-ins. If you are qualifying a fresh BOM, look for a pin-compatible successor within the Stellaris family — the same 100-LQFP footprint and peripheral set may carry forward with a different base product number. ## 50 MHz Cortex-M3 with USB and CAN The 61 general-purpose I/O lines give plenty of headroom for sensor multiplexing or parallel display interfaces. ## What the peripheral set means for your BOM The 8-channel 10-bit ADC covers basic analog sensing — think potentiometer feedback, thermistor readout, or current-sense amplifier outputs. The DMA controller can move ADC results to SRAM without CPU intervention, which matters if you are running a control loop at the full 50 MHz.","metaTitle":"LM3S5749-IQC50-A0T Stellaris ARM Cortex-M3 MCU, 50MHz","metaDescription":"LM3S5749-IQC50-A0T Stellaris ARM Cortex-M3 MCU at 50MHz with 128KB Flash, 64KB SRAM, USB and CAN. NRND status.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 5000","Package":"Tape & Reel (TR)","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"61","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Not For New Designs","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5749","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$22.0584","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/368a9fa6b2b092ba8f46bbc7ba860922.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5749-IQC50-A0T/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S5749-IQC50-A0T obsolete or NRND?","answer":"It is not fully obsolete, but Texas Instruments advises against using it in new product designs. Existing production can continue while supply lasts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5749-IQC50-A0T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5749-IQC50-A0T 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}}