{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1N16-IQR50-C1T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1N16-IQR50-C1T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1N16-IQR50-C1T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1N16-IQR50-C1T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series, LM3S1N16-IQR50-C1T, 32-bit ARM Cortex-M3 MCU, 50MHz, 64KB Flash, 12K RAM, 33 I/O, 64-LQFP, industrial temp -40 to 85°C.","salesMarkdown":"The LM3S1N16-IQR50-C1T is officially classified as Obsolete by Texas Instruments, meaning the manufacturer has ceased production with no planned last-time-buy window remaining. ## ARM Cortex-M3 at 50 MHz — what the specs mean for the BOM line The 50 MHz ARM Cortex-M3 core delivers 32-bit single-core processing with 64 KB of on-chip Flash program memory and 12 K x 8 RAM — the memory partition suits control-loop firmware in the 20-40 KB range, leaving headroom for a small RTOS or state-machine scheduler. 33 general-purpose I/O lines in a 64-LQFP package offer enough pins for a parallel LCD data bus, keypad matrix, and sensor interrupts without needing an external GPIO expander. Connectivity includes I²C, SPI, SSI, UART/USART, IrDA, LINbus, and Microwire — the UART count supports a Modbus RTU master/slave on one port and a debug terminal on another without sharing. The 8-channel 10-bit ADC handles analog inputs like thermistor or potentiometer feedback; combined with the PWM and WDT peripherals, the part can run a closed-loop motor or heater control with minimal external components.","metaTitle":"LM3S1N16-IQR50-C1T Texas Instruments ARM Cortex-M3 MCU","metaDescription":"Texas Instruments LM3S1N16-IQR50-C1T ARM Cortex-M3 MCU, 50MHz, 64KB Flash, 12K RAM, 33 I/O, industrial temp. Obsolete — sourced to order per 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":"Tape & Reel (TR)","RAM Size":"12K 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":"LM3S1N16","Program Memory Size":"64KB (64K 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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/86788e4cd0934eb95c8ebca26ca40c34.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1N16-IQR50-C1T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S1N16-IQR50-C1T?","answer":"No official pin-compatible successor is recorded for this Texas Instruments Stellaris part. A board spin would be required to migrate to a different MCU family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1N16-IQR50-C1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1N16-IQR50-C1T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:48:55.618Z","lastPublished":"2026-07-21T02:48:55.618Z","indexable":true}}