{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S3739-IQC50","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S3739-IQC50","canonicalUrl":"https://icboms.com/texas-instruments/LM3S3739-IQC50","factsUrl":"https://icboms.com/api/mcp/products/LM3S3739-IQC50","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 3000 series LM3S3739-IQC50, 32-bit single-core MCU, 50 MHz, 128 KB Flash, 64K x 8 RAM, USB, I²C, SPI, UART, 100-LQFP, -40 to 85°C.","salesMarkdown":"The LM3S3739-IQC50: The 50 MHz ARM Cortex-M3 core delivers about 1.25 DMIPS/MHz, so you get roughly 62.5 DMIPS of processing headroom. For a motor-control loop running at 20 kHz or a USB virtual-com-port bridge handling 1 MBaud, that leaves margin for interrupt latency and protocol overhead without needing to push the clock to the edge of the timing budget. ## 128 KB Flash and 64K x 8 RAM — sizing the firmware footprint 128 KB of Flash is the firmware ceiling. A typical USB HID or CDC class driver plus a PID control loop and a command parser fits under 60 KB, leaving room for a bootloader and field-update staging area. The 64K x 8 SRAM (64 KB) supports double-buffered USB transfers and a moderate real-time data array. ## USB and serial connectivity — what's on the peripheral bus USB is the headline interface here — the LM3S3739 integrates a USB controller (device/host/OTG) directly, so no external PHY is needed for many applications. That covers most industrial sensor buses and debug links without glue logic. The 8-channel 10-bit ADC (8x10b) is adequate for reading potentiometers, current shunts, or thermistors in a control loop. ## Active lifecycle — still a valid production choice That means no last-time-buy clock is ticking — it is still being manufactured and supported for new designs.","metaTitle":"Texas Instruments LM3S3739-IQC50 ARM Cortex-M3 MCU, 50 MHz","metaDescription":"TI Stellaris LM3S3739-IQC50 32-bit ARM Cortex-M3 MCU: 50 MHz core, 128 KB Flash, 64K x 8 RAM, USB, I²C, SPI, UART. Active lifecycle, -40 to 85°C.","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 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","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e86dbad651e23a51a764cbd588b23caf.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S3739-IQC50/alternatives.json"},"ai":{"faq":[{"question":"Does LM3S3739-IQC50 support USB?","answer":"Yes."},{"question":"What is the flash memory size of LM3S3739-IQC50?","answer":"128 KB of program Flash (128K x 8)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S3739-IQC50","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 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}}