{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2139-IBZ25-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2139-IBZ25-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2139-IBZ25-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S2139-IBZ25-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3S2139-IBZ25-A2, Stellaris® ARM® Cortex®-M3S 2000 series, 32-bit single-core MCU, 25 MHz, 64KB Flash, 16K x 8 RAM, CANbus, I²C, SPI, UART, 56 I/O, 108-LFBGA, -40°C to 85°C.","salesMarkdown":"The Texas Instruments LM3S2139-IBZ25-A2 is a 32-bit ARM Cortex-M3 MCU from the Stellaris® series, clocked at 25 MHz with 64 KB of Flash program memory and 16K x 8 of SRAM. Typical applications include industrial control nodes, CAN-based sensor hubs, and embedded networking endpoints where a moderate-speed Cortex-M3 with broad peripheral integration is needed. The 25 MHz clock rate places this MCU in the moderate-throughput tier of the Stellaris family — adequate for command-and-response control loops, CAN message handling, and sensor aggregation, but not for heavy DSP or high-frame-rate graphics. The 64 KB Flash and 16K x 8 RAM suit firmware images with moderate feature sets; designs needing more code space or faster execution should look at higher-speed siblings in the same BGA footprint. ## NRND — what that means for procurement This is not a full EOL notice — the part is still available through distribution for existing production runs — but it signals that the manufacturer is winding down support and that new designs should not start with this device. A formal last-time-buy window may already be in effect; buyers with active BOM lines should secure their forecast quantity now and evaluate a migration path. No official pin-compatible successor has been published for this specific variant.","metaTitle":"LM3S2139-IBZ25-A2 Stellaris ARM Cortex-M3 MCU, 25 MHz, 64KB Flash","metaDescription":"Texas Instruments LM3S2139-IBZ25-A2 Stellaris ARM Cortex-M3 MCU, 25 MHz, 64KB Flash, 16K x 8 RAM, CAN/I2C, -40°C to 85°C, 108-BGA. 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":"25MHz","Series":"Stellaris® ARM® Cortex®-M3S 2000","Package":"Tray","RAM Size":"16K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"56","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":"LM3S2139","Program Memory Size":"64KB (64K 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":"$23.1411","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c1cdf722c5d87c271bdac9e2db61473c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S2139-IBZ25-A2/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S2139-IBZ25-A2 obsolete?","answer":"The LM3S2139-IBZ25-A2 is classified as NRND (Not Recommended for New Designs), not fully obsolete. It remains available through distribution for existing production, but Texas Instruments has signaled that lifecycle support is winding down. Buyers with active BOM lines should secure near-term quantities and plan for a replacement."},{"question":"Does LM3S2139-IBZ25-A2 support CAN and I2C?","answer":"Yes — the LM3S2139-IBZ25-A2 includes both a CANbus controller and an I²C interface, along with SPI, SSI, Microwire, IrDA, and UART/USART. The CAN module supports standard 2.0A/B protocol."},{"question":"What is the operating temperature range of LM3S2139-IBZ25-A2?","answer":"The LM3S2139-IBZ25-A2 is rated for -40°C to 85°C, the industrial temperature grade."},{"question":"What is LM3S2139-IBZ25-A2's core speed?","answer":"The LM3S2139-IBZ25-A2 runs at 25 MHz, based on the ARM Cortex-M3 core."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2139-IBZ25-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/LM3S2139-IBZ25-A2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}