{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S812-EGZ50-C2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S812-EGZ50-C2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S812-EGZ50-C2","factsUrl":"https://icboms.com/api/mcp/products/LM3S812-EGZ50-C2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 800 series LM3S812-EGZ50-C2, 32-bit single-core ARM Cortex-M3 at 50 MHz, 64 KB Flash, 8 KB RAM, 3 V–3.6 V supply, 34 I/O, -40°C to 105°C, 48-VFQFN exposed pad, Tray.","salesMarkdown":"## 50 MHz Cortex-M3 for industrial control loops The LM3S812-EGZ50-C2: It is designed for embedded control applications — think motor drive, sensor aggregation, and human-machine interfaces — where the Cortex-M3 core handles deterministic interrupt response and the peripheral set covers I²C, SPI, UART, SSI, and Microwire connectivity without external glue logic. ## Memory sizing — 64 KB Flash, 8 KB RAM The 64 KB program memory and 8 KB SRAM place this MCU in the value-density tier. For a typical firmware image running a Modbus stack or a PID loop with a small RTOS, 64 KB leaves headroom for a bootloader and a few feature modules. The 8 KB RAM handles a couple of moderate-size buffers; if your application needs a large display frame buffer or extensive data logging, you will bump into the ceiling. The Flash is organized as 64K x 8, so sector-erase granularity follows the Stellaris family pattern — plan your OTA update partition sizes accordingly. The 34 I/O lines operate at 3 V–3.6 V supply. ## Package and thermal — 48-VFQFN with exposed pad The supplier device package is 48-VFQFN Exposed Pad. ## Lifecycle — active production TI lists the LM3S812-EGZ50-C2 as active.","metaTitle":"TI LM3S812-EGZ50-C2 ARM Cortex-M3 MCU, 50 MHz, 64 KB Flash","metaDescription":"Texas Instruments Stellaris LM3S812-EGZ50-C2 32-bit ARM Cortex-M3 MCU at 50 MHz, 64 KB Flash, 8 KB RAM, 34 I/O, -40°C to 105°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"50MHz","title":"LM3S812-EGZ50-C2","Series":"Stellaris® ARM® Cortex®-M3S 800","Package":"Tray","RAM Size":"8K x 8","Core Size":"32-Bit Single-Core","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","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":"LM3S812","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":"What is the closest pin-compatible alternative to LM3S812-EGZ50-C2?","answer":"The Stellaris family includes several pin-compatible density options with the same 48-VFQFN footprint. For a direct drop-in with identical pinout, look at other LM3S8xx devices in the same package — the base product number LM3S812 shares the same footprint across the series."},{"question":"What development board works with LM3S812-EGZ50-C2?","answer":"Texas Instruments offered the Stellaris LM3S811 evaluation board (EK-LM3S811) for this family. It provides a JTAG/SWD interface and breakout headers for the peripheral pins. The board is now end-of-life but can still be found through surplus channels."},{"question":"How to program LM3S812-EGZ50-C2?","answer":"Programming is done through the JTAG or Serial Wire Debug (SWD) interface using a standard ARM debug probe such as the TI ICDI or a Segger J-Link. The internal Flash is programmed via the debug port; no external programmer is required beyond the probe."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S812-EGZ50-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/LM3S812-EGZ50-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}}