{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S328-IGZ25-C2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S328-IGZ25-C2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S328-IGZ25-C2","factsUrl":"https://icboms.com/api/mcp/products/LM3S328-IGZ25-C2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 300 series microcontroller, LM3S328-IGZ25-C2, 32-bit single-core, 25 MHz, 16 KB flash, 4 KB RAM, 28 I/O, 48-VQFN.","salesMarkdown":"## Cortex-M3 at 25 MHz — flash and RAM budget for a control loop The LM3S328-IGZ25-C2: The 28 general-purpose I/O lines break out through a 48-pin VQFN package with an exposed thermal pad (7×7 mm). ## Serial connectivity and analog capture The serial interface set covers I²C, SPI, SSI, Microwire, and UART/USART — enough to talk to a temperature sensor, a small display, or a radio module without external bridge chips. The 8-channel 10-bit ADC samples analog signals from potentiometers, current shunts, or thermistors; the 10-bit resolution gives 1024 counts across the 3.0–3.6 V supply range. On-chip peripherals include brown-out detect, power-on reset, a PWM generator, and a watchdog timer. These reduce the external supervisory IC count — the brown-out detect holds the core in reset if the supply dips below the operating threshold, and the WDT catches firmware hangs without a separate watchdog chip.","metaTitle":"LM3S328-IGZ25-C2 Texas Instruments ARM Cortex-M3 MCU, 25 MHz","metaDescription":"Texas Instruments LM3S328-IGZ25-C2 Stellaris ARM Cortex-M3 MCU, 25 MHz, 16 KB flash, 4 KB RAM, 28 I/O, -40 to 85°C. Active production, sourced to order.","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":"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-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~85°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-IGZ25-C2/alternatives.json"},"ai":{"faq":[{"question":"What serial interfaces does this Cortex-M3 MCU support?","answer":"The LM3S328-IGZ25-C2 includes I²C, SPI, SSI, Microwire, and UART/USART interfaces. This set covers common sensor, display, and radio module protocols without external bridge ICs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S328-IGZ25-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/LM3S328-IGZ25-C2 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}}