{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S301-EQN20-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S301-EQN20-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S301-EQN20-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S301-EQN20-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 300 microcontroller, LM3S301-EQN20-C2T, 32-bit single-core, 20MHz, 16KB FLASH, 2K x 8 RAM, 48-LQFP, -40°C to 105°C.","salesMarkdown":"Texas Instruments lists the LM3S301-EQN20-C2T as NRND (Not Recommended for New Designs). Existing production runs and field-service spares can still be sourced — availability and current pricing confirmed per RFQ through independent distribution channels. ## Core and memory — what 16 KB flash buys ARM Cortex-M3 core at 20 MHz — the 32-bit single-core architecture delivers around 1.25 DMIPS/MHz, so the throughput ceiling is roughly 25 DMIPS before flash wait-states factor in. 16 KB on-chip flash and 2 KB SRAM suit sensor nodes, simple motor control loops, or protocol-bridge firmware where the application image fits under 12 KB and the stack uses under 1.5 KB. Program memory is flash, not OTP or EPROM — field updates are viable within the write endurance budget of the Stellaris family. ## I/O and peripherals — what is on-chip 33 general-purpose I/O lines, with brown-out detect, power-on reset, PWM, and a watchdog timer integrated — no external supervisor needed for basic fault monitoring. Serial connectivity covers Microwire, SPI, SSI, and UART/USART — enough for a single sensor bus plus a debug/field-update UART. Three-channel 10-bit ADC samples analog inputs at the internal oscillator rate — adequate for reading potentiometers, thermistors, or 0-10 V scaled signals through a divider.","metaTitle":"Texas Instruments LM3S301-EQN20-C2T Cortex-M3 MCU, 20MHz","metaDescription":"Texas Instruments LM3S301-EQN20-C2T Stellaris ARM Cortex-M3 MCU, 20MHz, 16KB Flash, 2KB RAM, 48-LQFP.","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 ~ 105°C (TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"3V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.8497","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/711354dad80c7c1416df1ec447a2eaee.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S301-EQN20-C2T/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LM3S301-EQN20-C2T and how do I get a price?","answer":"Sourced to order against an RFQ through independent channels."},{"question":"What is the LM3S301-EQN20-C2T's listed speed?","answer":"20 MHz core clock on the ARM Cortex-M3 processor. This is the maximum operating frequency; actual throughput depends on flash wait-states and the application's instruction mix."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S301-EQN20-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-EQN20-C2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:53:18.807Z","lastPublished":"2026-07-21T02:53:18.807Z","indexable":true}}