{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S300-IQN25-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S300-IQN25-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S300-IQN25-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S300-IQN25-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 300 series LM3S300-IQN25-C2T, 32-bit ARM Cortex-M3 MCU, 25 MHz, 16 KB Flash, 4 KB RAM, 36 I/O, 48-LQFP, -40°C to 85°C.","salesMarkdown":"The Texas Instruments LM3S300-IQN25-C2T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris® 300 series, running at 25 MHz with 16 KB of Flash and 4 KB of RAM. A 25 MHz Cortex-M3 core is a modest performer by today's standards — it handles UART polling, basic PID loops, and simple sensor reads without timing gymnastics. You won't run heavy DSP or high-speed data logging on this core, but for a motor interlock controller or a Modbus RTU slave it's adequate. The 4 KB RAM is the tighter constraint: keep your stack and buffers lean, or you'll hit a wall during development. ## Lifecycle reality: obsolete, not gone","metaTitle":"LM3S300-IQN25-C2T Stellaris ARM Cortex-M3 MCU, 25 MHz, 16 KB Flash, 48-LQFP","metaDescription":"Texas Instruments LM3S300-IQN25-C2T 32-bit ARM Cortex-M3 MCU. 25 MHz core, 16 KB Flash, 4 KB RAM, 36 I/O, -40°C to 85°C. Obsolete; sourced to order against 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":"25MHz","Series":"Stellaris® ARM® Cortex®-M3S 300","Package":"Tape & Reel (TR)","RAM Size":"4K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"36","Core Processor":"ARM® Cortex®-M3","Package / Case":"48-LQFP","Product Status":"Obsolete","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S300","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":"$9.8840","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b0079ff5b3d77e4f86c3abfcf8857684.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S300-IQN25-C2T/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LM3S300-IQN25-C2T and how do I get a price?","answer":"We source this obsolete MCU to order against an RFQ through our independent distribution network. Submit a request for quote; availability and current pricing are confirmed at quote time — no stock or price figures are published for this end-of-life part."},{"question":"What is the closest pin-compatible alternative to LM3S300-IQN25-C2T in this component family?","answer":"Texas Instruments did not release a direct pin-compatible replacement for this Stellaris 300 series MCU. The Stellaris line has been discontinued as a brand; no official successor exists in the same 48-LQFP footprint with identical pinout. Any substitution requires a board redesign."},{"question":"What is LM3S300-IQN25-C2T's listed speed (25 MHz) on this component line?","answer":"The core runs at 25 MHz, which is the maximum clock rate for this ARM Cortex-M3 implementation in the Stellaris 300 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S300-IQN25-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/LM3S300-IQN25-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}}