{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1Z16-IQR50-C3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1Z16-IQR50-C3","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1Z16-IQR50-C3","factsUrl":"https://icboms.com/api/mcp/products/LM3S1Z16-IQR50-C3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series MCU, LM3S1Z16-IQR50-C3, 32-bit 50MHz core, 16KB Flash, 6KB RAM, 64-LQFP.","salesMarkdown":"Texas Instruments has marked the LM3S1Z16-IQR50-C3 as Obsolete. ## Core and memory — 50MHz Cortex-M3 with 16KB Flash The ARM Cortex-M3 core runs at 50MHz, delivering a 32-bit single-core pipeline with 16KB of on-chip Flash program memory (16K x 8) and 6K x 8 of SRAM. For a compact control loop or sensor hub, the 6KB RAM holds a modest RTOS footprint plus a few hundred bytes of stack — budget accordingly if the application layer is heavy. 33 digital I/O lines are available, alongside an 8-channel 10-bit A/D converter for analog sensor inputs. The connectivity block covers I²C, SPI, SSI, UART/USART, IrDA, LINbus, and Microwire — enough for a mixed-signal control board with a few serial peripherals and a fieldbus link. On-chip peripherals include brown-out detect/reset, DMA, POR, PWM, and a watchdog timer. The internal oscillator eliminates an external crystal for the core clock, though the ADC accuracy depends on the internal RC stability. ## Package and supply — 64-LQFP, 1.08V–1.32V core Housed in a 64-LQFP with a 10x10 mm body (supplier device package 64-LQFP (10x10)). The 0.50 mm pitch demands a 4-layer board for clean fan-out of the inner rows — two-layer breaks out only the perimeter pins. Core supply is 1.08V to 1.32V — a tight 240 mV window. A local LDO or precision switcher is needed; a 1.2V rail with ±5% tolerance keeps the core inside spec.","metaTitle":"TI LM3S1Z16-IQR50-C3 ARM Cortex-M3 MCU, 50MHz, 16KB Flash","metaDescription":"Texas Instruments LM3S1Z16-IQR50-C3 Stellaris ARM Cortex-M3 MCU, 50MHz, 16KB Flash, 6KB 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":"Tray","RAM Size":"6K 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":"LM3S1Z16","Program Memory Size":"16KB (16K 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/7f37e797a5f8ba0ff59dde74c817757e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1Z16-IQR50-C3/alternatives.json"},"ai":{"faq":[{"question":"How can I order the LM3S1Z16-IQR50-C3 or check availability?","answer":"The LM3S1Z16-IQR50-C3 is obsolete and sourced through independent surplus channels. No stock-holding claim is made — each lot is assessed individually."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1Z16-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/LM3S1Z16-IQR50-C3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:49:42.261Z","lastPublished":"2026-07-21T02:49:42.261Z","indexable":true}}