{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2678-IQR50-A0","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2678-IQR50-A0","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2678-IQR50-A0","factsUrl":"https://icboms.com/api/mcp/products/LM3S2678-IQR50-A0","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 2000 series, 32-bit single-core MCU, LM3S2678-IQR50-A0, 50 MHz, 128 KB Flash, 32 KB SRAM, 33 GPIO, CANbus/UART/SPI/SSI, 8-channel 10-bit ADC, 2.25-2.75 V supply, -40 to 85°C, 64-LQFP tray.","salesMarkdown":"## Stellaris Cortex-M3 MCU — 50 MHz, CANbus, 64-LQFP The 8-channel 10-bit ADC and 33 GPIOs suit sensor-fusion and motor-feedback designs. This part carries a Not Recommended for New Designs (NRND) lifecycle status. ## 50 MHz core — timing and throughput The 50 MHz core clock drives the Cortex-M3 pipeline and peripheral bus. At this speed, Flash wait states need to be configured correctly in the boot code — the default zero-wait state works up to around 25 MHz; above that, one wait state keeps the bus stable. The CANbus interface runs at up to 1 Mbps, and the UARTs can hit standard baud rates without external oscillators thanks to the internal oscillator. ## Supply and temperature — rail design and environment The 64-LQFP package (10x10 mm) with 0.5 mm pitch requires careful decoupling: a 0.1 µF ceramic per supply pin pair, plus a bulk 4.7 µF on the board.","metaTitle":"Texas Instruments LM3S2678-IQR50-A0 ARM Cortex-M3 MCU","metaDescription":"Texas Instruments LM3S2678-IQR50-A0 Stellaris ARM Cortex-M3 MCU: 50 MHz, 128 KB Flash, 32 KB SRAM, CANbus, 2.25-2.75 V, -40 to 85°C, 64-LQFP.","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, DMA, POR, PWM, WDT","Connectivity":"CANbus, IrDA, Microwire, QEI, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"33","Core Processor":"ARM® Cortex®-M3","Package / Case":"64-LQFP","Product Status":"Not For New Designs","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S2678","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$25.8917","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/480bdc57ed675d3855ec4fab1b7736db.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S2678-IQR50-A0/alternatives.json"},"ai":{"faq":[{"question":"Does LM3S2678 support CAN?","answer":"Yes, the LM3S2678 includes a CANbus interface as one of its connectivity peripherals, alongside UART/USART, SPI, SSI, IrDA, Microwire, and QEI."},{"question":"What is the replacement for LM3S2678-IQR50-A0?","answer":"No official replacement part number has been published in the available records. For a new design, consider a pin-compatible Cortex-M3 or M4 MCU from the Stellaris family with similar Flash, SRAM, CANbus, and supply voltage. Contact us with your requirements for cross-reference support."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2678-IQR50-A0","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S2678-IQR50-A0 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}}