{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5739-IQC50-A0T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5739-IQC50-A0T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5739-IQC50-A0T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5739-IQC50-A0T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 5000 series, LM3S5739-IQC50-A0T, 32-bit single-core MCU, 50 MHz, 128 KB Flash, 64 KB SRAM, 61 I/O, CAN/I²C/SPI/USB, 100-LQFP, -40°C to 85°C.","salesMarkdown":"## NRND — sourcing reality for this code TI has classified the LM3S5739-IQC50-A0T as Not Recommended for New Designs. No official successor is listed. 100-pin LQFP (14x14 mm body), surface-mount only. The 61 I/O lines fan out to three sides of the package.","metaTitle":"LM3S5739-IQC50-A0T Stellaris ARM Cortex-M3 MCU, 50 MHz, 128 KB Flash","metaDescription":"LM3S5739-IQC50-A0T 32-bit ARM Cortex-M3 MCU, 50 MHz, 128 KB Flash, 64 KB SRAM, industrial temp -40°C to 85°C. NRND — 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 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, 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":"LM3S5739","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":"$11.7130","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5739-IQC50-A0T/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S5739-IQC50-A0T obsolete or not for new designs?","answer":"Yes, TI lists this part as Not Recommended for New Designs (NRND). It is not formally end-of-life, but TI advises against starting new projects with it. Existing production should plan for a last-time-buy or a replacement."},{"question":"What is the equivalent or replacement for LM3S5739-IQC50-A0T?","answer":"No official direct replacement is listed. The closest pin-compatible sibling in the Stellaris 5000 family is the LM3S5738, which shares the same 100-LQFP footprint and peripheral set but differs in Flash and SRAM density. Verify memory and feature fit before substituting."},{"question":"Where can I buy LM3S5739-IQC50-A0T and how do I get a price?","answer":"This part is sourced through independent distribution. Submit an RFQ for current availability and pricing — stock levels and market price fluctuate, so a confirmed quote is issued at order time."},{"question":"What is LM3S5739-IQC50-A0T's listed speed?","answer":"The core runs at 50 MHz, typical for an ARM Cortex-M3 in this class. That translates to roughly 62.5 DMIPS, enough for most industrial control and protocol-bridge workloads."},{"question":"What development tools work with LM3S5739?","answer":"Standard ARM Cortex-M3 toolchains apply — Keil MDK, IAR EWARM, and GCC-based IDEs (e.g. ARM Mbed or Eclipse with GNU ARM). TI's Stellaris ICDI debug probe or any standard JTAG/SWD adapter (J-Link, ST-Link) can program and debug the device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5739-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/LM3S5739-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}}