{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S815-EGZ50-C2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S815-EGZ50-C2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S815-EGZ50-C2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S815-EGZ50-C2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 800 series LM3S815-EGZ50-C2T, 32-bit single-core MCU, 50 MHz, 64 KB Flash, 8 KB RAM, 34 I/O, I2C/SPI/SSI/UART, 3 V–3.6 V supply, -40°C to 105°C, 48-VFQFN exposed pad, tape and reel.","salesMarkdown":"## Memory and peripheral fit for control applications The 8 KB RAM (8K x 8) gives you room for a couple of 1 KB buffers plus stack and variables; if your application needs larger frame buffers or a TCP/IP stack, you'll want to budget carefully. The 34 I/O lines are enough to handle a keypad, an LCD character display, and a handful of sensors without an external GPIO expander. ## Connectivity and analog integration The LM3S815-EGZ50-C2T supports I²C, SPI, SSI, and UART interfaces — enough to talk to most common sensors, ADCs, displays, and serial peripherals. The Microwire compatibility on the SPI block is a nice touch if you're integrating older serial EEPROMs or interface chips. On the analog side, there's a 2-channel 10-bit ADC — not a lot of channels, but enough for a couple of analog sensor inputs or a potentiometer for user input. ## Package and layout: 48-VFQFN exposed pad If you're running the MCU near its maximum ratings or in a warm enclosure, stitch a grid of vias under the pad to the ground plane. The pad also serves as the ground return for the core — a poor thermal connection can lead to junction temperature rise and reliability issues. That means it's safe to design into new production without worrying about an imminent obsolescence-driven redesign.","metaTitle":"Texas Instruments LM3S815-EGZ50-C2T ARM Cortex-M3 MCU","metaDescription":"Texas Instruments LM3S815-EGZ50-C2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 64 KB Flash, 8 KB RAM, 34 I/O, I2C/SPI/UART, -40°C to 105°C, 48-VFQFN.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"50MHz","title":"LM3S815-EGZ50-C2T","Series":"Stellaris® ARM® Cortex®-M3S 800","Package":"Tape & Reel (TR)","RAM Size":"8K x 8","Core Size":"32-Bit Single-Core","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","description":"Texas Instruments LM3S815-EGZ50-C2T, Stellaris ARM Cortex-M3S 800 series, 50MHz 32-bit single-core, 64KB Flash / 8KB RAM, 34 I/O, I2C/SPI/SSI/UART interfaces, 3V–3.6V supply, -40°C to 105°C operating temperature, 48-VFQFN exposed pad in tape-and-reel.","Connectivity":"I²C, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"34","Core Processor":"ARM® Cortex®-M3","Package / Case":"48-VFQFN Exposed Pad","Data Converters":"A/D 2x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S815","Program Memory Size":"64KB (64K 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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Does the LM3S815-EGZ50-C2T support I2C?","answer":"Yes, the LM3S815-EGZ50-C2T includes an I²C interface as part of its connectivity set, along with SPI, SSI, and UART."},{"question":"What is the closest pin-compatible equivalent to the LM3S815-EGZ50-C2T?","answer":"Within the Stellaris 800 series, higher-density variants with more Flash and RAM share the same 48-VFQFN footprint and pinout. Check the LM3S811 or LM3S818 for a drop-in upgrade path with additional memory — verify the peripheral set matches your application."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S815-EGZ50-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/LM3S815-EGZ50-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}}