{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1439-IBZ50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1439-IBZ50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1439-IBZ50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1439-IBZ50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series MCU, LM3S1439-IBZ50-A2T, 50 MHz, 96 KB flash, 32 KB SRAM, 52 I/O, 108-BGA (10x10 mm), -40 to 85°C, Tape & Reel.","salesMarkdown":"## Cortex-M3 at 50 MHz — flash and SRAM budget The LM3S1439-IBZ50-A2T: That memory split is enough for a lightweight RTOS plus a modest application stack — think sensor fusion, motor-control firmware, or a fieldbus gateway. The 52 available GPIOs give headroom for parallel interfaces and discrete I/O without an external port expander. ## Industrial temperature and BGA package The 108-ball BGA (10x10 mm) keeps the footprint small but demands a 4-layer PCB for fan-out and adequate decoupling — the 2.25 V to 2.75 V supply rail needs local bypass caps within 5 mm of each VDD ball. Peripherals include a 4-channel 10-bit ADC, six serial interfaces (I²C, SPI, SSI, UART, IrDA, Microwire), a quadrature encoder interface (QEI) for motor position, and a PWM module — a practical set for a brushless-DC or stepper motor drive. ## NRND — sourcing for existing BOMs Texas Instruments lists the LM3S1439-IBZ50-A2T as NRND (Not Recommended for New Designs). It remains available for production builds and field replacements, but new projects should evaluate a current-generation Cortex-M4 or M33 alternative.","metaTitle":"TI LM3S1439-IBZ50-A2T ARM Cortex-M3 MCU, 50 MHz, NRND","metaDescription":"Texas Instruments LM3S1439-IBZ50-A2T ARM Cortex-M3 MCU, 50 MHz, 96 KB flash, 32 KB SRAM, 52 I/O, 108-BGA, -40 to 85°C. NRND — sourced to order.","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 1000","Package":"Tape & Reel (TR)","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"52","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Not For New Designs","Data Converters":"A/D 4x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1439","Program Memory Size":"96KB (96K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"108-BGA (10x10)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$17.8994","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/84642662439782fc7db173508ac8502c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1439-IBZ50-A2T/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for LM3S1439-IBZ50-A2T?","answer":"Submit an RFQ for the LM3S1439-IBZ50-A2T — we confirm current pricing and available quantities at quote time, sourced through independent distribution channels."},{"question":"What is LM3S1439-IBZ50-A2T's listed speed and memory?","answer":"The LM3S1439-IBZ50-A2T runs at 50 MHz with 96 KB of flash and 32 KB of SRAM, based on an ARM Cortex-M3 core."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1439-IBZ50-A2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1439-IBZ50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:41:35.120Z","lastPublished":"2026-07-21T02:41:35.120Z","indexable":true}}