{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1816-IQR50-C3T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1816-IQR50-C3T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1816-IQR50-C3T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1816-IQR50-C3T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series MCU, LM3S1816-IQR50-C3T, 32-bit single-core, 50MHz, 256KB Flash, 32K x 8 RAM, 33 I/O, 64-LQFP, -40°C to 85°C.","salesMarkdown":"## Obsolete — what that means for your BOM line Texas Instruments has marked the LM3S1816-IQR50-C3T as Obsolete. This part is sourced through independent distribution channels — quantities are lot-specific and confirmed at RFQ time. ## Core and memory — what fits on the die The ARM Cortex-M3 core runs at 50 MHz, delivering the 32-bit single-core throughput typical of the Stellaris 1000 series. On-chip program memory is 256 KB of Flash (256K x 8), paired with 32K x 8 of SRAM. For a firmware engineer, that Flash footprint accommodates a moderate RTOS plus application stack, with the SRAM leaving headroom for data buffers and peripheral DMA descriptors. ## Peripherals and I/O — what connects to the bus 33 general-purpose I/O lines are multiplexed with a peripheral set that includes I²C, SPI, SSI, UART/USART, IrDA, and Microwire. An 8-channel 10-bit ADC handles analog inputs. On-chip peripherals also include brown-out detect/reset, DMA, POR, PWM, and a watchdog timer. The internal oscillator reduces external component count — useful when board space is tight in a 64-LQFP (10x10 mm) package. ## Supply and temperature — operating envelope Surface-mount assembly in the 64-LQFP package — the 0.50 mm pitch demands a controlled reflow profile and a clean solder-paste stencil aperture.","metaTitle":"TI LM3S1816-IQR50-C3T Cortex-M3 MCU, 50MHz, 256KB Flash","metaDescription":"Texas Instruments LM3S1816-IQR50-C3T Stellaris ARM Cortex-M3 MCU, 50MHz, 256KB Flash, 32KB RAM, 64-LQFP.","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/28aaa1ee4dc83ca313d65bff1ae2b85b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S1816-IQR50-C3T?","answer":"The Stellaris ARM Cortex-M3S 1000 series includes several variants with different memory and peripheral mixes, but pin compatibility depends on the specific package and function mapping — verify against the datasheet before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1816-IQR50-C3T","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-C3T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:44:15.154Z","lastPublished":"2026-07-21T02:44:15.154Z","indexable":true}}