{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1816-IQR50-C0T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1816-IQR50-C0T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1816-IQR50-C0T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1816-IQR50-C0T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series microcontroller, LM3S1816-IQR50-C0T, 32-bit single-core Cortex-M3, 50MHz, 256KB Flash, 32KB RAM, 64-LQFP, -40°C to 85°C.","salesMarkdown":"## Core specs and what they mean for a BOM line The LM3S1816-IQR50-C0T is a Stellaris ARM Cortex-M3S 1000 series microcontroller from Texas Instruments, built around a 32-bit Cortex-M3 core clocked at 50 MHz. The 256 KB on-chip flash and 32 KB SRAM provide enough headroom for a moderate control application — think motor drive firmware with a communication stack, not a full GUI. The 33 GPIOs and the peripheral mix — I²C, SPI, SSI, UART/USART, plus IrDA and Microwire — cover most sensor and actuator interfaces on a factory-floor control board. The 8-channel 10-bit ADC samples analog feedback without an external converter. That means it can sit inside a panel near a motor drive without derating. Housed in a 64-LQFP with a 10x10 mm body, the 0.5 mm pitch demands a controlled-impedance PCB stack-up for the high-speed serial interfaces. The supplier device package is 64-LQFP (10x10), so the footprint is standard across the Stellaris 1000 series — a board designed for one 64-pin LQFP variant can accept others in the family with a firmware change. ## Lifecycle reality — obsolete, not end-of-life inventory Texas Instruments lists the LM3S1816-IQR50-C0T as obsolete. That means the manufacturer has stopped production and there is no last-time-buy window open. If your BOM line calls for this exact order code, the supply is surplus and broker-managed; a pin-compatible drop-in from the same Stellaris family may be a more sustainable path for new builds.","metaTitle":"Texas Instruments LM3S1816-IQR50-C0T ARM Cortex-M3 MCU","metaDescription":"Texas Instruments LM3S1816-IQR50-C0T Stellaris ARM Cortex-M3 MCU, 50MHz, 256KB Flash, 32KB RAM, 64-LQFP. 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 1000","Package":"Tape & Reel (TR)","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"33","Core Processor":"ARM® Cortex®-M3","Package / Case":"64-LQFP","Product Status":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1816","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.08V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.4000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/28aaa1ee4dc83ca313d65bff1ae2b85b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1816-IQR50-C0T/alternatives.json"},"ai":{"faq":[{"question":"How can I order the LM3S1816-IQR50-C0T or check availability?","answer":"The LM3S1816-IQR50-C0T is obsolete and sourced through independent distribution. Submit an RFQ for current availability, pricing, and lot traceability — confirmed at quote time."},{"question":"What is the LM3S1816-IQR50-C0T's core speed and memory?","answer":"The Cortex-M3 core runs at 50 MHz, with 256 KB flash program memory and 32 KB SRAM."},{"question":"What is the closest pin-compatible alternative to the LM3S1816-IQR50-C0T?","answer":"Other 64-LQFP parts in the Stellaris 1000 series share the same footprint and supply voltage, but each requires a firmware port — confirm the peripheral set matches your application before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1816-IQR50-C0T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1816-IQR50-C0T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:44:14.002Z","lastPublished":"2026-07-21T02:44:14.002Z","indexable":true}}