{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S101-IQN20-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S101-IQN20-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S101-IQN20-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S101-IQN20-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 100 series, LM3S101-IQN20-C2T, 32-bit single-core MCU, 20 MHz, 8 KB flash, 2 KB RAM, 18 I/O, 48-LQFP (7x7), 3.0 V–3.6 V supply, -40°C to 85°C, Tape & Reel.","salesMarkdown":"The LM3S101-IQN20-C2T is a Stellaris ARM Cortex-M3 core running at 20 MHz. With 8 KB of flash and 2 KB of SRAM, it fits control loops, UART-to-SPI bridges, and simple sensor aggregation — not a GUI stack or heavy protocol handler. Eighteen general-purpose I/O lines and internal oscillator mean you can start a basic design without an external crystal or a large BOM. The 48-LQFP package (7x7 mm) is hand-solderable and routes on two-layer boards if you keep the fan-out clean. If your design has legacy 5 V peripherals, budget a level shifter or use open-drain with pull-ups to 3.3 V. Not rated for under-hood automotive or engine-bay environments. The base product number LM3S101 covers the whole family; the -IQN20-C2T suffix identifies the 20 MHz speed grade, industrial temp, and 48-LQFP package variant. ## Peripherals and on-chip resources","metaTitle":"LM3S101-IQN20-C2T – TI Stellaris Cortex-M3 MCU, 20 MHz","metaDescription":"Texas Instruments LM3S101-IQN20-C2T ARM Cortex-M3 32-bit MCU at 20 MHz with 8 KB flash, 2 KB RAM, 18 I/O, 48-LQFP. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"20MHz","Series":"Stellaris® ARM® Cortex®-M3S 100","Package":"Tape & Reel (TR)","RAM Size":"2K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"18","Core Processor":"ARM® Cortex®-M3","Package / Case":"48-LQFP","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S101","Program Memory Size":"8KB (8K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"3V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.0100","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S101-IQN20-C2T/alternatives.json"},"ai":{"faq":[{"question":"Does the LM3S101-IQN20-C2T have a built-in oscillator?","answer":"Yes, the MCU includes an internal oscillator. For applications that require a precise clock for UART baud rates or timekeeping, an external crystal or oscillator is recommended."},{"question":"Can the LM3S101-IQN20-C2T be replaced by the LM3S101-IQN20-C2?","answer":"The LM3S101-IQN20-C2 and LM3S101-IQN20-C2T share the same base part number and package. The -C2T suffix indicates Tape & Reel packaging, while the -C2 variant is typically tray or tube. They are functionally identical and pin-compatible; the only difference is the shipping medium."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S101-IQN20-C2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S101-IQN20-C2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}