{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S3739-IQC50-A0","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S3739-IQC50-A0","canonicalUrl":"https://icboms.com/texas-instruments/LM3S3739-IQC50-A0","factsUrl":"https://icboms.com/api/mcp/products/LM3S3739-IQC50-A0","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 3000 32-Bit MCU, LM3S3739-IQC50-A0, 50MHz, 128KB Flash, 64KB RAM, 61 I/O, 100-LQFP, -40 to 85°C.","salesMarkdown":"## Cortex-M3 core with USB and serial connectivity The LM3S3739-IQC50-A0: The 100-LQFP package (14×14 mm body) exposes 61 GPIO lines and an 8-channel 10-bit ADC. ## NRND — last-time-buy planning window Texas Instruments lists the LM3S3739-IQC50-A0 as NRND (Not Recommended for New Designs). This means the part is still available for existing production but is not intended for new design starts. For sustainment programs — medical, industrial, or defense — that already have this MCU in the BOM, the NRND status signals a last-time-buy window is likely. ## On-chip peripherals and memory headroom The 128 KB flash and 64 KB SRAM leave room for a real-time control loop with a USB stack and a modest RTOS footprint. The DMA controller offloads peripheral-to-memory transfers without stalling the Cortex-M3 core. Built-in brown-out detect, POR, and watchdog timer reduce external supervisor IC count. The internal oscillator keeps the BOM simple for applications that do not require a precision external clock source. ## Package and board-fit notes The 100-LQFP with 0.50 mm pitch and a 14×14 mm body requires a four-layer board for clean fan-out of the inner rows. Decoupling should follow the standard 100 nF per VDD pair plus a 10 µF bulk cap near the supply entry. The 2.25 V to 2.75 V supply rail is tight — a 2.5 V ±2% regulator is the natural match.","metaTitle":"LM3S3739-IQC50-A0 Texas Instruments ARM Cortex-M3 MCU, 50MHz","metaDescription":"Texas Instruments LM3S3739-IQC50-A0 Stellaris ARM Cortex-M3 MCU, 50MHz, 128KB Flash, 64KB RAM, 100-LQFP. NRND status — sourced to order against RFQ.","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 3000","Package":"Tray","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, Microwire, 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":"LM3S3739","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":"$23.4530","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e86dbad651e23a51a764cbd588b23caf.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S3739-IQC50-A0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the LM3S3739-IQC50-A0?","answer":"The Stellaris 3000 family shares the same Cortex-M3 core and 100-LQFP footprint, but each variant has a different peripheral and memory mix — verify the target BOM position against the family datasheet before substituting."},{"question":"What is the LM3S3739-IQC50-A0's core speed and memory configuration?","answer":"The core runs at 50 MHz."},{"question":"What compliance documentation does Texas Instruments provide for the LM3S3739-IQC50-A0?","answer":"Texas Instruments provides RoHS and REACH compliance documentation for this part. The base product number is LM3S3739."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S3739-IQC50-A0","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S3739-IQC50-A0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:54:13.421Z","lastPublished":"2026-07-21T02:54:13.421Z","indexable":true}}