{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S300-IGZ25-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S300-IGZ25-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S300-IGZ25-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S300-IGZ25-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 300 32-Bit MCU, LM3S300-IGZ25-C2T, 25 MHz, 16 KB Flash, 4K x 8 RAM, 48-VFQFN Exposed Pad, -40 to 85°C.","salesMarkdown":"## 25 MHz Cortex-M3 with 16 KB flash — what the memory and speed mean for fit The LM3S300-IGZ25-C2T: The 25 MHz core delivers roughly 25 MIPS of deterministic throughput — enough for sensor polling, simple control loops, or a Modbus RTU node, but the 16 KB flash limits firmware to a single application image without a bootloader partition. The 4K x 8 SRAM (4 KB) leaves about 2.5 KB after the stack and minimal HAL, so data buffering beyond a few hundred bytes needs external memory or a lean state-machine design. ## 48-VQFN package — rework and board integration Housed in a 48-VFQFN with an exposed pad (7x7 mm body), the part is a QFN with a thermal pad underneath. The exposed pad needs a solder-paste stencil aperture that covers 50-70% of the pad area — too much paste and the part floats; too little and the thermal path to the board ground plane is weak. ## Industrial temperature range and peripheral set On-chip peripherals include brown-out detect, POR, PWM, and a WDT, plus I²C, SPI, SSI, Microwire, and UART/USART connectivity. The 36 I/O pins are enough for a 16x2 LCD, a keypad matrix, and a few sensor interrupts, but not for a parallel memory bus or a large TFT display without external GPIO expanders.","metaTitle":"Texas Instruments LM3S300-IGZ25-C2T Cortex-M3 MCU, 25 MHz","metaDescription":"Texas Instruments LM3S300-IGZ25-C2T Stellaris ARM Cortex-M3 MCU, 25 MHz, 16 KB Flash, 4K x 8 RAM, 48-VQFN, -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":"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":"36","Core Processor":"ARM® Cortex®-M3","Package / Case":"48-VFQFN Exposed Pad","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S300","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/b0079ff5b3d77e4f86c3abfcf8857684.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S300-IGZ25-C2T/alternatives.json"},"ai":{"faq":[{"question":"What replaces LM3S300-IGZ25-C2T?","answer":"There is no direct pin-compatible replacement from Texas Instruments. The Stellaris family was superseded by the Tiva C series, but those MCUs use different packages and pinouts — a board redesign is required for any migration."},{"question":"What is the pinout of LM3S300-IGZ25-C2T?","answer":"The part is a 48-VFQFN with an exposed pad. Pin 1 is indicated by a chamfer on the top mold. The specific pin assignments are in the device datasheet — the base product number is LM3S300."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S300-IGZ25-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/LM3S300-IGZ25-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}}