{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S328-EQN25-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S328-EQN25-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S328-EQN25-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S328-EQN25-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 300 series MCU, LM3S328-EQN25-C2T, 32-bit single-core ARM Cortex-M3, 25 MHz, 16 KB Flash, 4 KB RAM, 8-channel 10-bit ADC, 28 I/O, 48-LQFP, -40°C to 105°C.","salesMarkdown":"## What this MCU is — and where it was designed in The Texas Instruments LM3S328-EQN25-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. It packs a 10-bit ADC with eight channels, 28 general-purpose I/O lines, and serial interfaces covering I²C, SPI, Microwire, SSI, and UART/USART — enough connectivity for a sensor hub or a simple motor-control front-end. ## Obsolete — sourcing reality for the BOM line","metaTitle":"LM3S328-EQN25-C2T Stellaris ARM Cortex-M3 MCU, 25 MHz, 16 KB Flash","metaDescription":"Texas Instruments LM3S328-EQN25-C2T 32-bit ARM Cortex-M3 MCU, 25 MHz, 16 KB Flash, 4 KB RAM, 28 I/O, -40°C to 105°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":"28","Core Processor":"ARM® Cortex®-M3","Package / Case":"48-LQFP","Product Status":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S328","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":"$5.8900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/47a181b8b99cd2b700efc344c2b6e241.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S328-EQN25-C2T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S328-EQN25-C2T?","answer":"No official pin-compatible direct replacement is listed by Texas Instruments for this exact order code. The Stellaris 300 series shares a common 48-LQFP footprint, but firmware and peripheral compatibility must be verified against the specific alternate part number before substitution."},{"question":"What is the speed rating of LM3S328-EQN25-C2T?","answer":"The core runs at 25 MHz — adequate for serial communication and basic control loops, but not for high-speed data processing or real-time audio."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S328-EQN25-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/LM3S328-EQN25-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}}