{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2950-IBZ50-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2950-IBZ50-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2950-IBZ50-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S2950-IBZ50-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 2000 series microcontroller, LM3S2950-IBZ50-A2, 50MHz, 256KB Flash, 64K x 8 SRAM, 60 I/O, 108-LFBGA, tray.","salesMarkdown":"## NRND — what that means for your BOM Texas Instruments lists the LM3S2950-IBZ50-A2 as NRND (Not Recommended for New Designs). That means it is still available for existing production runs, but TI will not support it in new projects — no new datasheet revisions, no process updates, and eventually a last-time-buy notice. If you have this on an active BOM, the window to secure lifetime-buy quantities is open but finite. For a new design, look for a pin-compatible or functionally equivalent replacement in the same Stellaris family before the layout locks. The core is an ARM Cortex-M3 running at 50 MHz — plenty for a control-loop or protocol-stack workload that does not need the overhead of a full MPU. The 2.25 V to 2.75 V supply rail means this part runs from a 2.5 V rail, not the common 3.3 V — check your regulator before dropping it into a legacy 3.3 V design. ## 108-ball BGA — board-fit checklist Package is a 108-ball LFBGA, 10x10 mm body (supplier device package 108-BGA). The 0.80 mm ball pitch is manageable on a 4-layer board with blind vias; a 2-layer board will struggle to fan out the inner rows. ## Peripherals and connectivity On-chip peripherals include brown-out detect, POR, PWM, and a watchdog timer — enough to supervise a standalone controller without an external supervisor IC. Connectivity covers CANbus, I²C, IrDA, Microwire, QEI, SPI, SSI, and UART/USART — the CAN and QEI interfaces make this a natural fit for a motor-control node or a sensor hub on a CAN-based fieldbus. 60 general-purpose I/O pins give plenty of headroom for parallel displays, keypads, or a bank of external ADC channels.","metaTitle":"LM3S2950-IBZ50-A2 Texas Instruments MCU, 50MHz, 256KB Flash","metaDescription":"Texas Instruments LM3S2950-IBZ50-A2 Stellaris ARM Cortex-M3 MCU, 50MHz, 256KB Flash, 64K x 8 SRAM, 108-BGA. NRND status. 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 2000","Package":"Tray","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"60","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Not For New Designs","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S2950","Program Memory Size":"256KB (256K 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":"$21.0417","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/58cbdf37a25073ea16048f6f3e02b171.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S2950-IBZ50-A2/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S2950-IBZ50-A2 obsolete?","answer":"It is NRND (Not Recommended for New Designs), not fully obsolete. TI still supports existing production, but new designs should use a current-generation alternative."},{"question":"Is LM3S2950-IBZ50-A2 compatible with LM3S2950-IBZ50?","answer":"The base product number is LM3S2950, so the IBZ50 and IBZ50-A2 variants share the same core and memory map. The -A2 suffix typically indicates a die revision or process change — check the TI PCN for any electrical or timing differences before a direct swap."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2950-IBZ50-A2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S2950-IBZ50-A2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:52:32.616Z","lastPublished":"2026-07-21T02:52:32.616Z","indexable":true}}