{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5739-IQC50-A0","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5739-IQC50-A0","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5739-IQC50-A0","factsUrl":"https://icboms.com/api/mcp/products/LM3S5739-IQC50-A0","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series LM3S5739-IQC50-A0, 32-Bit Single-Core MCU, 50MHz, 128KB Flash, 64K x 8 RAM, CANbus/USB/I²C/SPI/UART, 61 I/O, 100-LQFP, -40°C~85°C.","salesMarkdown":"The LM3S5739-IQC50-A0: That means TI has stopped actively promoting it for new projects, though it remains available for existing production runs through the independent distribution channel. For a sustainment program or a repair depot that already has this MCU in the BOM, the supply path is surplus and broker inventory — not direct factory allocation. This is narrower than the 3.3 V typical for most Cortex-M3 parts, so the board-level regulator needs to be a 2.5 V LDO or a buck converter set to 2.5 V with ±5% tolerance. A 3.3 V system will need a separate 2.5 V supply for this MCU; the I/O pins are not 5 V tolerant. ## 100-LQFP footprint and layout notes The 100-LQFP package is 14x14 mm. Surface-mount only.","metaTitle":"LM3S5739-IQC50-A0 Stellaris ARM Cortex-M3 MCU, 50 MHz","metaDescription":"LM3S5739-IQC50-A0 Stellaris ARM Cortex-M3 MCU, 50 MHz, 128 KB Flash, 64 KB SRAM, CAN/USB, -40°C to 85°C, 100-LQFP. 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":"Tray","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":"$20.9396","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5739-IQC50-A0/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S5739-IQC50-A0 obsolete or NRND?","answer":"It is not fully obsolete, but TI no longer promotes it for new projects. Existing production can be sustained through surplus and broker inventory."},{"question":"Does LM3S5739-IQC50-A0 have CAN and USB?","answer":"Yes. The connectivity block includes CANbus, USB, I²C, IrDA, Microwire, SPI, SSI, and UART/USART. This makes it a single-chip solution for an industrial gateway that bridges a CAN fieldbus to a USB host or a UART debug port."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5739-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/LM3S5739-IQC50-A0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}