{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S308-EQN25-C2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S308-EQN25-C2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S308-EQN25-C2","factsUrl":"https://icboms.com/api/mcp/products/LM3S308-EQN25-C2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 300 32-bit MCU, LM3S308-EQN25-C2, 25 MHz, 16 KB flash, 4 KB SRAM, 28 I/O, 48-LQFP, -40 to 105°C.","salesMarkdown":"## NRND — sourcing through independent channels Texas Instruments lists the LM3S308-EQN25-C2 as NRND (Not Recommended for New Designs). This means the part is not intended for new product introductions, but existing designs can still be supported through independent distribution. For a BOM already qualified on this Stellaris ARM Cortex-M3 MCU, the NRND status does not force an immediate redesign — but it does mean the supply window is finite. ## Core and memory — what the 25 MHz and 16 KB flash mean for fit The 32-bit ARM Cortex-M3 core runs at 25 MHz, delivering enough throughput for real-time control loops, sensor fusion, and protocol bridging without the overhead of a full MPU. The 16 KB on-chip flash (16K x 8) and 4 KB SRAM (4K x 8) suit firmware footprints for motor control, human-machine interface panels, or industrial sensor nodes — not data-logging or GUI-heavy applications. With 28 general-purpose I/O lines and an 8-channel 10-bit ADC, the LM3S308-EQN25-C2 can handle a mix of digital inputs, PWM outputs, and analog sensing on a single chip. Connectivity options include I²C, SPI, SSI, Microwire, and UART/USART — enough to interface with common serial peripherals, memory devices, and host controllers. The brown-out detect, POR, and watchdog timer provide basic system supervision without an external supervisor IC. ## Package and temperature grade Housed in a 48-LQFP (7x7 mm) surface-mount package, the LM3S308-EQN25-C2 fits on compact PCBs with standard reflow profiles.","metaTitle":"TI LM3S308-EQN25-C2 ARM Cortex-M3 MCU, 25 MHz, 16 KB Flash","metaDescription":"Texas Instruments LM3S308-EQN25-C2 Stellaris ARM Cortex-M3 MCU, 25 MHz, 16 KB flash, 4 KB SRAM, 28 I/O, -40 to 105°C. NRND — sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"25MHz","Series":"Stellaris® ARM® Cortex®-M3S 300","Package":"Tray","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":"Not For New Designs","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S308","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":"$5.7854","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/90a978bd331b0d8880daa32faecfc169.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S308-EQN25-C2/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the LM3S308-EQN25-C2 and get a price?","answer":"The LM3S308-EQN25-C2 is NRND and sourced through independent distribution."},{"question":"What is the closest pin-compatible alternative to the LM3S308-EQN25-C2 in the Stellaris family?","answer":"A functional replacement would require evaluating other Stellaris or Tiva C Series MCUs with similar peripheral sets and package options; board-level changes may be needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S308-EQN25-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/LM3S308-EQN25-C2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:53:19.021Z","lastPublished":"2026-07-21T02:53:19.021Z","indexable":true}}