{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S808-EQN50-C2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S808-EQN50-C2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S808-EQN50-C2","factsUrl":"https://icboms.com/api/mcp/products/LM3S808-EQN50-C2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 800 series MCU, LM3S808-EQN50-C2, 32-bit single-core, 50 MHz, 64 KB Flash, 8 KB RAM, 28 I/O, 48-LQFP (7x7 mm), -40 to 105°C, 3V to 3.6V supply.","salesMarkdown":"The Texas Instruments LM3S808-EQN50-C2 is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris 800 series, clocked at 50 MHz with 64 KB of Flash program memory and 8 KB of SRAM. It packs 28 general-purpose I/O lines, an 8-channel 10-bit ADC, and serial interfaces covering I²C, SPI, SSI, Microwire, and UART/USART. The 50 MHz Cortex-M3 core handles a PID loop at 10 kHz with margin for Modbus or serial protocol framing. The 8 KB SRAM limits buffering. ## Memory sizing — 64 KB Flash, 8 KB RAM 64 KB of Flash and 8 KB of SRAM are available. Plan the memory map early or budget for external serial RAM over SPI. The -40 to 105°C operating range qualifies this MCU for factory-floor enclosures and outdoor telecom cabinets. The 48-LQFP package in a 7x7 mm body fits on compact PCBs. ## Lifecycle reality — obsolete, no direct replacement The LM3S808-EQN50-C2 is marked obsolete by Texas Instruments.","metaTitle":"LM3S808-EQN50-C2 Stellaris ARM Cortex-M3 MCU, 50 MHz, 64 KB Flash, -40 to 105°C","metaDescription":"LM3S808-EQN50-C2 Stellaris ARM Cortex-M3 MCU, 50 MHz, 64 KB Flash, 8 KB RAM, 28 I/O, 48-LQFP, -40 to 105°C. Obsolete — 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 800","Package":"Tray","RAM Size":"8K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"28","Core Processor":"ARM® Cortex®-M3","Package / Case":"48-LQFP","Product Status":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S808","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~105°C(TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"3V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7cff1fedd86ae3145d403ef6f1370d48.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S808-EQN50-C2/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S808-EQN50-C2?","answer":"No official pin-compatible replacement is listed in the lifecycle record. Migrating to a current-production MCU will require a PCB layout change and firmware port. Check the TM4C123 or TM4C129 series from TI for a functional upgrade path."},{"question":"What is LM3S808-EQN50-C2's core speed?","answer":"The LM3S808-EQN50-C2 runs at 50 MHz on its ARM Cortex-M3 core, delivering approximately 62.5 DMIPS."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S808-EQN50-C2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S808-EQN50-C2 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}}