{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1816-IQR50-C3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1816-IQR50-C3","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1816-IQR50-C3","factsUrl":"https://icboms.com/api/mcp/products/LM3S1816-IQR50-C3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 32-bit MCU, LM3S1816-IQR50-C3, 50 MHz, 256 KB flash, 32 KB RAM, 64-LQFP, -40 to 85 °C.","salesMarkdown":"## Cortex-M3 control MCU with 50 MHz core and 256 KB flash The LM3S1816-IQR50-C3: It carries 256 KB of on-chip flash and 32 KB of SRAM, giving the firmware stack room for a real-time OS, the application logic, and a communication buffer pool. The 50 MHz core speed sets the throughput ceiling for interrupt latency and peripheral bandwidth — a control loop sampling sensors at 10 kHz and updating a PWM output has roughly 5,000 core cycles per iteration before the next sample arrives. ## Industrial temperature grade and peripheral set Rated for -40 to 85 °C ambient, the device suits factory-floor controllers, outdoor telemetry gateways, and engine-adjacent enclosures where the board sees thermal cycling without active cooling. On-chip peripherals include an 8-channel 10-bit ADC, PWM outputs, DMA for memory-to-peripheral transfers, and a watchdog timer — enough supervisory and signal-conditioning blocks to run a motor-drive or sensor-fusion node without external glue logic. The connectivity set spans I2C, SPI, SSI, UART/USART, IrDA, and Microwire, covering the common serial buses for industrial sensors, displays, and radio modules. The internal oscillator eliminates the external crystal for basic clocking, though an external source can be used for tighter accuracy. Quantities are lot-specific; each unit is sourced and verified against the original TI specifications before shipment.","metaTitle":"Texas Instruments LM3S1816-IQR50-C3 ARM Cortex-M3 MCU","metaDescription":"Texas Instruments LM3S1816-IQR50-C3 Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB flash, 32 KB RAM, -40 to 85 °C. Obsolete — sourced to order. Request a quote.","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":"Tray","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":"$10.2000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f059e24692882bb1fd110529230b2ed2.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1816-IQR50-C3/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the LM3S1816-IQR50-C3?","answer":"No pin-compatible alternative is listed in the manufacturer's records. The Stellaris family includes other Cortex-M3 parts in the same 64-LQFP package, but pin assignments vary across the series — a board spin is required for any replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1816-IQR50-C3","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-C3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:44:16.918Z","lastPublished":"2026-07-21T02:44:16.918Z","indexable":true}}