{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S301-IQN20-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S301-IQN20-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S301-IQN20-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S301-IQN20-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 300 series MCU, LM3S301-IQN20-C2T, 32-bit single-core ARM Cortex-M3 at 20 MHz, 16 KB Flash, 2 KB RAM, 33 I/O, 3x10b ADC, -40°C to 85°C, 48-LQFP (7x7 mm).","salesMarkdown":"At 20 MHz the Cortex-M3 executes most single-cycle instructions. 16 KB of Flash holds a modest firmware image. 2 KB of RAM is the real constraint. ## Industrial temperature and peripherals The brown-out detect and POR ensure clean startup in noisy environments. The PWM and watchdog timer cover the basic control and supervision tasks without external supervisor ICs. Connectivity options — Microwire, SPI, SSI, UART/USART — cover the common serial buses for industrial sensors and HMI panels. TI has not issued a formal last-time-buy notice for this exact variant, but the NRND flag means the part is in the phase-out pipeline. New designs should target a pin-compatible Stellaris or Tiva-C replacement.","metaTitle":"LM3S301-IQN20-C2T Stellaris ARM Cortex-M3 MCU, 20 MHz, 16 KB Flash","metaDescription":"TI/Stellaris LM3S301-IQN20-C2T ARM Cortex-M3 MCU, 20 MHz, 16 KB Flash, 2 KB RAM, 33 I/O, -40 to 85°C, 48-LQFP. NRND — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"20MHz","Series":"Stellaris® ARM® Cortex®-M3S 300","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":"33","Core Processor":"ARM® Cortex®-M3","Package / Case":"48-LQFP","Product Status":"Not For New Designs","Data Converters":"A/D 3x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S301","Program Memory Size":"16KB (16K 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":"$4.3524","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/711354dad80c7c1416df1ec447a2eaee.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S301-IQN20-C2T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S301-IQN20-C2T?","answer":"No official pin-compatible successor is listed in the lifecycle record. The Stellaris LM3S3xx family shares the same 48-LQFP footprint across density options, so a higher-density sibling (e.g. LM3S308 with 64 KB Flash) may drop in if the firmware fits. Verify the peripheral set and supply voltage before substituting."},{"question":"What is LM3S301-IQN20-C2T's listed speed?","answer":"The core runs at 20 MHz. At this clock rate the Cortex-M3 executes most instructions in a single cycle, giving roughly 20 MIPS throughput for straight-line code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S301-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/LM3S301-IQN20-C2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}