{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1850-EQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1850-EQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1850-EQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1850-EQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series MCU, LM3S1850-EQC50-A2T, 32-bit single-core, 50MHz, 256KB Flash, 32K x 8 RAM, 100-LQFP.","salesMarkdown":"## 50 MHz Cortex-M3 with 256 KB Flash — the memory and speed profile The LM3S1850-EQC50-A2T: The 100-LQFP package (14x14 mm) exposes 56 general-purpose I/O lines. The 2.25 V to 2.75 V supply rail is tighter than the typical 3.3 V MCU — the board's regulator must hold within that window across load steps. ## Industrial temperature grade and on-chip peripherals The internal oscillator eliminates the external crystal for the core clock, saving two pins and a board component. Connectivity includes I²C, SPI, SSI, UART/USART, IrDA, and a QEI for quadrature encoder inputs — useful for motor-feedback loops. On-chip peripherals cover brown-out detection, POR, PWM generation, and a watchdog timer. Texas Instruments lists the LM3S1850-EQC50-A2T as obsolete. For a BOM line that already carries this order code, the procurement decision is whether the remaining build volume justifies a last-time buy or a board spin to a current-generation Cortex-M4 or M7 part in a similar 100-pin LQFP footprint.","metaTitle":"TI LM3S1850-EQC50-A2T ARM Cortex-M3 MCU, 50MHz, 256KB Flash","metaDescription":"Texas Instruments LM3S1850-EQC50-A2T Stellaris ARM Cortex-M3 MCU, 50MHz, 256KB Flash, 32KB RAM, 100-LQFP. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 1000","Package":"Tape & Reel (TR)","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"56","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1850","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~105°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/baa1bcfff847752cd120a6e6a5af1a2a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the LM3S1850-EQC50-A2T's core speed and memory configuration?","answer":"The ARM Cortex-M3 core runs at 50 MHz. On-chip memory consists of 256 KB of Flash and 32 KB of SRAM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1850-EQC50-A2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1850-EQC50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:44:44.704Z","lastPublished":"2026-07-21T02:44:44.704Z","indexable":true}}