{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2637-IBZ50-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2637-IBZ50-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2637-IBZ50-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S2637-IBZ50-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris LM3S2637-IBZ50-A2, ARM Cortex-M3 32-bit single-core MCU, 50 MHz, 128 KB Flash, 32 KB RAM, 2.25 V–2.75 V supply, 46 I/O, 108-LFBGA, -40°C to 85°C.","salesMarkdown":"The LM3S2637-IBZ50-A2: TI is not actively developing this device for new production programs, though existing designs can still be supported through the independent distribution channel while inventory lasts. For a new BOM line, the NRND flag means you should qualify an alternate part. ## Memory and peripheral fit for control applications ## 50 MHz core — where the speed matters The 50 MHz Cortex-M3 core delivers roughly 1.25 DMIPS/MHz, or about 62.5 DMIPS. That is enough throughput for real-time control loops running at 10–20 kHz update rates, CAN message handling at 1 Mbps, and moderate DSP-style filtering on the 10-bit ADC samples. ## Package and supply rail considerations The industrial temperature rating means the device is characterized for operation down to -40°C, which matters for outdoor telecom cabinets, engine-bay-adjacent controllers, and cold-chain logistics equipment.","metaTitle":"Texas Instruments LM3S2637-IBZ50-A2 ARM Cortex-M3 MCU","metaDescription":"LM3S2637-IBZ50-A2 Stellaris ARM Cortex-M3 32-bit MCU, 50 MHz, 128 KB Flash, 32 KB RAM, 2.25V-2.75V, -40°C to 85°C, 108-BGA.","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":"32K 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":"46","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":"LM3S2637","Program Memory Size":"128KB (128K 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":"$19.5223","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S2637-IBZ50-A2/alternatives.json"},"ai":{"faq":[{"question":"What is the exact replacement for LM3S2637-IBZ50-A2?","answer":"The evidence does not list an official direct replacement part number from TI. For a pin-compatible upgrade path within the Stellaris family, you would need to cross-reference the LM3S2000 series portfolio against the 108-BGA footprint and 2.5 V supply requirement. Contact us with your volume and target application for a qualified alternate recommendation."},{"question":"Is LM3S2637-IBZ50-A2 recommended for new designs?","answer":"No. Its NRND status means TI does not recommend it for new production designs. For a new BOM line, you should select a currently active Stellaris or TM4C-series Cortex-M4 part that meets the same 2.5 V supply and BGA footprint requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2637-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/LM3S2637-IBZ50-A2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}