{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S328-EGZ25-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S328-EGZ25-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S328-EGZ25-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S328-EGZ25-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 300 series MCU, LM3S328-EGZ25-C2T, 32-Bit Single-Core, 25MHz, 16KB FLASH, 4K x 8 RAM, 48-VFQFN Exposed Pad, -40°C~105°C.","salesMarkdown":"## 25 MHz Cortex-M3 with 16 KB Flash — what it fits It is built for cost-sensitive control applications — think sensor hubs, motor-control interfaces, or simple human-machine interfaces — where the 25 MHz core handles a modest control loop and the 16 KB Flash holds a straightforward firmware image without a real-time OS. The 28 general-purpose I/Os and the I²C, SPI, UART/USART, Microwire, and SSI serial interfaces give it enough connectivity to talk to a few peripherals over a shared bus. ## Industrial temperature range — 105°C matters That extra headroom matters if the board lives near a motor drive, inside an outdoor telecom enclosure, or anywhere the junction temperature can climb under load. ## Package and thermal — the exposed pad Without that via stitch, the junction temperature rises faster than the 105°C ambient rating suggests. The pad must be soldered — not just glued — to the PCB copper for both thermal and electrical ground connection. Listed as active in production. The base product number LM3S328 covers the whole family, so if a future spin needs more memory or a different package, the migration path stays within the same Stellaris 300 series.","metaTitle":"LM3S328-EGZ25-C2T Stellaris ARM Cortex-M3 MCU, 25 MHz","metaDescription":"LM3S328-EGZ25-C2T 32-bit ARM Cortex-M3 MCU at 25 MHz, 16 KB Flash, 4 KB SRAM, industrial temp -40°C to 105°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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-VFQFN Exposed Pad","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-VQFN (7x7)","Voltage - Supply (Vcc/Vdd)":"3V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/47a181b8b99cd2b700efc344c2b6e241.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S328-EGZ25-C2T/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S328-EGZ25-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-EGZ25-C2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}