{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S308-EQN25-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S308-EQN25-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S308-EQN25-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S308-EQN25-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris LM3S308-EQN25-C2T, 32-bit ARM Cortex-M3 MCU, 25 MHz, 16 KB Flash, 4 KB RAM, 48-LQFP, 3-3.6 V, -40°C to 105°C.","salesMarkdown":"## What this part is and where it fits The Texas Instruments LM3S308-EQN25-C2T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris® family, clocked at 25 MHz with 16 KB of Flash program memory and 4 KB of RAM. It integrates a 10-bit ADC with eight channels, along with serial interfaces including I²C, SPI, UART, SSI, and Microwire. The 48-LQFP package provides 28 general-purpose I/O lines. Rated for -40°C to 105°C, it suits industrial environments such as motor drives, outdoor telecom gear, and factory automation controllers. ## 25 MHz core — what it means for the control loop At 25 MHz, the Cortex-M3 core delivers deterministic throughput. That is sufficient for sensor polling, PID loops, and protocol framing at moderate baud rates. ## Industrial temperature grade and peripheral set The -40°C to 105°C range qualifies the MCU for under-hood automotive, outdoor base stations, and factory-floor modules without active cooling. The built-in brown-out detect, POR, PWM, and watchdog timer reduce external supervisor IC count. The 8-channel 10-bit ADC samples at rates adequate for temperature, pressure, or current-sense inputs in a control loop. ## Obsolete — sourcing reality Texas Instruments has marked the LM3S308-EQN25-C2T as obsolete. No further factory orders are accepted. This part is available through independent distribution on a sourced-to-order basis against an RFQ. Availability and current pricing are confirmed at quote time. No official TI successor is listed for this exact order code; for a pin-compatible alternative within the Stellaris family, check the LM3S3xxx series variants with matching 48-LQFP footprint and supply range.","metaTitle":"Texas Instruments LM3S308-EQN25-C2T ARM Cortex-M3 MCU, 25 MHz","metaDescription":"TI Stellaris LM3S308-EQN25-C2T 32-bit ARM Cortex-M3 MCU, 25 MHz, 16 KB Flash, 4 KB RAM, 48-LQFP, -40°C to 105°C. Obsolete; sourced to order. Request a quote.","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":"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-C2T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S308-EQN25-C2T in this component family?","answer":"No official pin-compatible replacement is listed by Texas Instruments. Within the Stellaris LM3S3xxx family, other 48-LQFP parts with the same 3–3.6 V supply and -40°C to 105°C range may be functional alternatives, but verify pinout and peripheral compatibility against the target application."},{"question":"What is LM3S308-EQN25-C2T's listed speed?","answer":"The core runs at 25 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S308-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/LM3S308-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}}