{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1Z16-IQR50-C3T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1Z16-IQR50-C3T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1Z16-IQR50-C3T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1Z16-IQR50-C3T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series MCU, LM3S1Z16-IQR50-C3T, 32-bit single-core, 50MHz, 16KB flash, 6KB SRAM, 33 I/O, 64-LQFP, -40°C to 85°C.","salesMarkdown":"## Obsolete — sourcing reality for the BOM line Texas Instruments has marked the LM3S1Z16-IQR50-C3T as Obsolete. Availability is lot-specific and confirmed at RFQ time — no stock-holding claim is made here. ## 50 MHz Cortex-M3 with 16 KB flash — what fits The core is an ARM Cortex-M3 running at 50 MHz — this is a single-cycle multiply, hardware-divide, bit-banding core without the FPU overhead of the M4. The 16 KB on-chip flash and 6 KB SRAM mean the bootloader, RTOS kernel, and application stack must be budgeted tightly. The flash is not shared with a large TI boot ROM, so the full 16 KB is usable for the application image. 33 general-purpose I/O lines are brought out from the 64-LQFP package. The 10x10 mm body with 0.5 mm pitch is a standard four-layer-board footprint — the inner rows of the QFP fan out cleanly on a 4-layer stack without micro-vias. ## Peripheral set and supply rails The part integrates a 10-bit ADC with 8 multiplexed channels, a PWM module, a watchdog timer, and a DMA controller. The connectivity block covers I²C, SPI, SSI, UART/USART, IrDA, LINbus, and Microwire — enough serial interfaces for a sensor hub or a simple motor-control node without an external UART expander. The I/O ring runs from a separate supply; the datasheet's recommended operating conditions must be read for the I/O voltage tolerance. The internal oscillator eliminates the external crystal for the core clock, saving two pins and a pair of load capacitors. This covers most factory-floor and outdoor enclosure applications without requiring the extended-temperature screening of an automotive-grade part.","metaTitle":"TI LM3S1Z16-IQR50-C3T ARM Cortex-M3 MCU, 50MHz, 16KB Flash","metaDescription":"Texas Instruments LM3S1Z16-IQR50-C3T Stellaris ARM Cortex-M3 MCU, 50MHz, 16KB flash, 6KB SRAM, 33 I/O, 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":"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-C3T/alternatives.json"},"ai":{"faq":[{"question":"What is the flash and RAM footprint of LM3S1Z16-IQR50-C3T?","answer":"16 KB of program flash and 6 KB of SRAM. The flash is the full 16 KB — TI's boot ROM on this Stellaris family does not consume a significant portion of the flash space, so the entire 16 KB is available for the application binary."},{"question":"What package does LM3S1Z16-IQR50-C3T use?","answer":"64-pin LQFP, supplier device package 64-LQFP (10x10 mm). 0.5 mm pitch, surface-mount."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1Z16-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/LM3S1Z16-IQR50-C3T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:49:45.674Z","lastPublished":"2026-07-21T02:49:45.674Z","indexable":true}}