{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S301-IQN20-C2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S301-IQN20-C2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S301-IQN20-C2","factsUrl":"https://icboms.com/api/mcp/products/LM3S301-IQN20-C2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris LM3S301-IQN20-C2, ARM Cortex-M3 32-bit MCU, 20MHz, 16KB Flash, 2KB RAM, 33 GPIO, 48-LQFP (7x7), 3V–3.6V, -40°C–85°C, Tray.","salesMarkdown":"Existing production lines can continue to source it through independent distribution, but new projects should evaluate a pin-compatible or functionally equivalent alternative. The Stellaris family has a broad portfolio; a drop-in replacement within the same 48-LQFP footprint may be available — confirm pin-to-pin compatibility against the datasheet before committing the layout. ## 20 MHz core and 3.3 V supply — design-fit check The 20 MHz clock rate keeps power draw moderate for always-on control loops. The 48-LQFP (7x7 mm) package is hand-solderable and common across many Stellaris parts, easing board reuse. Brown-out detect and POR are integrated, so external reset supervision is optional.","metaTitle":"LM3S301-IQN20-C2 Stellaris ARM Cortex-M3 MCU, 20MHz, NRND","metaDescription":"Texas Instruments LM3S301-IQN20-C2 32-bit ARM Cortex-M3 MCU, 20MHz, 16KB Flash, 2KB RAM, 33 GPIO, 48-LQFP, -40°C to 85°C.","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":"Tray","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":"$9.8002","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/711354dad80c7c1416df1ec447a2eaee.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S301-IQN20-C2/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S301-IQN20-C2 obsolete?","answer":"Production may continue for existing customers, but TI advises against starting new designs with this part. Sourcing through independent channels remains viable."},{"question":"What is the best replacement for LM3S301-IQN20-C2?","answer":"A pin-compatible replacement within the Stellaris LM3S300 series in the same 48-LQFP package would be the closest fit, offering identical footprint and supply voltage. Verify Flash and RAM sizing against your firmware requirements; a higher-density sibling may require only a firmware recompile."},{"question":"Does LM3S301-IQN20-C2 have an internal oscillator?","answer":"For precision timing or USB operation, an external clock source may still be required."},{"question":"Is LM3S301-IQN20-C2 compatible with 3.3V logic?","answer":"GPIOs are 3.3 V tolerant within that supply range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S301-IQN20-C2","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-C2 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}}