{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1W16-IQR50-C1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1W16-IQR50-C1","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1W16-IQR50-C1","factsUrl":"https://icboms.com/api/mcp/products/LM3S1W16-IQR50-C1","rawCanonicalId":null},"summary":{"shortDescription":"Stellaris ARM Cortex-M3S 1000 series 32-Bit Single-Core MCU, LM3S1W16-IQR50-C1, 50 MHz, 32 KB Flash, 8K x 8 RAM, 64-LQFP (10x10 mm), -40°C to 85°C.","salesMarkdown":"## Obsolete — sourcing strategy for the LM3S1W16-IQR50-C1 The LM3S1W16-IQR50-C1 is classified as Obsolete per the manufacturer's product status. There is no active last-time-buy window; production has ended. ## 32-bit Cortex-M3 at 50 MHz — what the core delivers Built around the ARM Cortex-M3 core, this MCU runs at 50 MHz with a 32-bit single-core architecture. The 50 MHz clock is sufficient for many control-loop, protocol-processing, and sensor-fusion tasks that don't require the higher throughput of a Cortex-M4 or M7. The core includes a single-cycle multiply and hardware divide, which helps keep interrupt latency predictable in real-time applications. ## Memory footprint: 32 KB Flash, 8 KB SRAM Program memory is 32 KB of on-chip Flash, organised as 32K x 8. Data RAM is 8K x 8. This is a small-to-mid memory tier — adequate for bootloaders, communication stacks, and moderate sensor-processing firmware. Designs requiring over-the-air update staging or large lookup tables will need to budget carefully or move to a higher-density sibling. Supply voltage range is 1.08 V to 1.32 V — a narrow core rail that requires a clean, low-noise regulator.","metaTitle":"LM3S1W16-IQR50-C1 Stellaris ARM Cortex-M3 MCU, 50 MHz","metaDescription":"LM3S1W16-IQR50-C1 is an obsolete 32-bit ARM Cortex-M3 MCU from the Stellaris series. 50 MHz core, 32 KB Flash, 8 KB SRAM, industrial temp.","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":"8K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, 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":"LM3S1W16","Program Memory Size":"32KB (32K 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 ~ 1.32V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b9d77d74fa09210f5608deba6bd6e816.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1W16-IQR50-C1/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S1W16-IQR50-C1 obsolete?","answer":"Yes, the manufacturer has marked this part as Obsolete. Production has ended, and no last-time-buy window is active. Sourcing is limited to the surplus and broker channel."},{"question":"What is the replacement for LM3S1W16-IQR50-C1?","answer":"A pin-compatible direct replacement from the same vendor is not guaranteed. For a drop-in alternative, review the Stellaris family for similar Cortex-M3 devices in the same 64-LQFP package and 1.08 V–1.32 V supply range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1W16-IQR50-C1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1W16-IQR50-C1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}