{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S6918-IBZ50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S6918-IBZ50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S6918-IBZ50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S6918-IBZ50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 6000 series 32-bit MCU, LM3S6918-IBZ50-A2T, 50 MHz, 256 KB Flash, 64 KB RAM, Ethernet MAC + I²C/SPI/UART/IrDA/SSI, 38 GPIO, 8x10-bit ADC, 2.25V–2.75V supply, -40°C to 85°C, 108-BGA (10x10 mm).","salesMarkdown":"The Texas Instruments LM3S6918-IBZ50-A2T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris® 6000 series, clocked at 50 MHz. Eight 10-bit ADC channels and 38 GPIO lines round out the peripheral set. The part is specified over the -40°C to 85°C industrial temperature range and operates from a 2.25 V to 2.75 V supply. It comes in a 108-ball BGA package measuring 10x10 mm, making it a compact choice for networked control applications where board space is tight. At 50 MHz, this core executes single-cycle multiply and hardware divide, which translates to around 50 MIPS throughput. For a typical control loop reading an ADC, running a PID, and updating a PWM output, that leaves headroom for a lightweight TCP/IP stack on the Ethernet port. The 64 KB SRAM is enough to buffer a few Ethernet frames and hold a modest RTOS task list, but you will want to budget memory carefully if you are running a full web server or TLS. ## 108-BGA package — board design considerations The 108-ball BGA measures 10x10 mm. The 38 GPIOs are distributed across the ball grid. ## Lifecycle status — obsolete, sourced through independent channels Texas Instruments has marked the LM3S6918-IBZ50-A2T as obsolete. No last-time-buy window remains open. For new designs, consider a current-production Stellaris or Tiva-C series part from TI — the LM3S6918's pin-compatible successors in the same family are the best starting point for a drop-in replacement, though you will need to verify exact peripheral and register compatibility against your firmware.","metaTitle":"LM3S6918-IBZ50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash","metaDescription":"LM3S6918-IBZ50-A2T is a 32-bit ARM Cortex-M3 MCU from TI's Stellaris series. 50 MHz core, 256 KB Flash, 64 KB RAM, Ethernet + multiple serial interfaces. Industrial temp -40°C to 8","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 6000","Package":"Tape & Reel (TR)","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"38","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S6918","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":"$35.1600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/513ab98429c8d221b314aeae12dda61f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S6918-IBZ50-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S6918-IBZ50-A2T?","answer":"TI's Stellaris family includes several pin-compatible parts in the same 108-BGA footprint, such as the LM3S6911 and LM3S6915, which share the same package and peripheral set. For current-production alternatives, the Tiva C Series TM4C123x parts offer a similar Cortex-M4 core with Ethernet, but the pinout and register map differ — a firmware port will be required."},{"question":"Who supplies LM3S6918-IBZ50-A2T and how is it quoted for volume purchases?","answer":"As an obsolete part, LM3S6918-IBZ50-A2T is supplied through independent distributors and surplus brokers. It is quoted to order against an RFQ; availability and current pricing are confirmed at quote time. Volume pricing depends on the lot size and condition (new, original, or re-reeled)."},{"question":"What is LM3S6918-IBZ50-A2T's listed speed?","answer":"The core runs at 50 MHz, which delivers approximately 50 MIPS on the Cortex-M3 architecture. This is the maximum clock frequency; the PLL can be configured for lower speeds to save power."},{"question":"What compliance documentation does this brand provide for LM3S6918-IBZ50-A2T?","answer":"Texas Instruments provides RoHS and REACH compliance documentation for this part. The datasheet includes material declaration data. No UL or IEC certification is listed for this specific order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S6918-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/LM3S6918-IBZ50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}