{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S6918-EQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S6918-EQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S6918-EQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S6918-EQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 6000 series 32-bit MCU, LM3S6918-EQC50-A2T, 50 MHz, 256 KB Flash, 64 KB RAM, Ethernet MAC+PHY, 8-channel 10-bit ADC, 38 GPIO, 100-LQFP, -40 to 105°C.","salesMarkdown":"The LM3S6918-EQC50-A2T is a 32-bit ARM Cortex-M3 MCU from TI's Stellaris 6000 series, clocked at 50 MHz with 256 KB of Flash and 64 KB of SRAM. Its standout feature is an integrated Ethernet MAC and PHY, making it a single-chip solution for wired connectivity in industrial control, building automation, and IoT gateway designs. ## 50 MHz Cortex-M3 — enough for a TCP/IP stack The integrated Ethernet PHY saves a separate transceiver chip and the associated PCB routing — a real BOM and board-area win for space-constrained designs. The 64 KB SRAM is adequate for packet buffers in most industrial Ethernet protocols, though you'll want to budget carefully if you're running a full web server. ## Ethernet connectivity — confirmed Yes, the LM3S6918-EQC50-A2T includes an integrated Ethernet MAC and PHY.","metaTitle":"LM3S6918-EQC50-A2T Stellaris Cortex-M3 MCU, 50 MHz, 256 KB Flash, Ethernet","metaDescription":"Obsolete LM3S6918-EQC50-A2T 32-bit ARM Cortex-M3 MCU with integrated Ethernet MAC+PHY, 256 KB Flash, 64 KB RAM, -40 to 105°C. Sourced to order against RFQ.","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":"100-LQFP","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~105°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/513ab98429c8d221b314aeae12dda61f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S6918-EQC50-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for LM3S6918-EQC50-A2T?","answer":"TI has not published a direct pin-compatible replacement for the LM3S6918-EQC50-A2T. For new designs, the TM4C129x series offers Ethernet MAC+PHY on a Cortex-M4F core, but the pinout and peripheral map differ. A full BOM-level redesign is required."},{"question":"What is the operating voltage range of LM3S6918-EQC50-A2T?","answer":"The supply voltage range is 2.25 V to 2.75 V. A regulated 2.5 V rail is required; the part is not 3.3 V tolerant on the core supply."},{"question":"Does LM3S6918-EQC50-A2T have Ethernet?","answer":"Yes, the LM3S6918-EQC50-A2T includes an integrated Ethernet MAC and PHY, along with I²C, SPI, SSI, UART/USART, IrDA, and Microwire interfaces."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S6918-EQC50-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-EQC50-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}}