{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2533-EQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2533-EQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2533-EQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S2533-EQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 2000 series LM3S2533-EQC50-A2T, 32-bit MCU, 50 MHz, 96 KB Flash, 64K x 8 RAM, CANbus/I2C/SPI/UART, 48 I/O, -40°C to 105°C, 100-LQFP.","salesMarkdown":"This part is officially marked obsolete by the manufacturer. That means no further production runs, no last-time-buy windows, and no factory support for new designs. If you have an existing board that uses this MCU, you are looking at the surplus and broker channel for replenishment. The 50 MHz Cortex-M3 core and the specific peripheral mix (CANbus, three 10-bit ADCs) made it a fit for a generation of industrial controllers, but anyone specifying it fresh should plan for a migration path. ## Pin-compatible alternatives in the Stellaris family Within the same Stellaris ARM Cortex-M3S 2000 series, the LM3S2536 is a direct density upgrade — same 100-LQFP footprint, same peripheral set, but with more Flash and RAM. The difference comes down to memory headroom for firmware growth. If your code fits in 96 KB and you are locked into the BOM, the LM3S2533 is the part; if you need space for additional features or a communications stack, the LM3S2536 is the natural drop-in without a board respin. We source it through our independent supply network — verified surplus, new-old-stock, and qualified broker inventory. If you need a production-run quantity or a one-off for a repair, send the RFQ; we will check the network and come back with a firm position.","metaTitle":"LM3S2533-EQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz","metaDescription":"LM3S2533-EQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz core, 96 KB Flash, 64K x 8 RAM, 48 I/O, -40°C to 105°C. Request quote.","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 2000","Package":"Tape & Reel (TR)","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"CANbus, I2C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"48","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 3x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S2533","Program Memory Size":"96KB (96K 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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/41400bc3a67408a744b45d22f819fb9a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S2533-EQC50-A2T/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LM3S2533-EQC50-A2T?","answer":"This part is obsolete, so it is not stocked on the shelf. Submit a request and we will confirm availability and current pricing at quote time."},{"question":"Is LM3S2533-EQC50-A2T obsolete?","answer":"Yes, the manufacturer has marked this part as obsolete. No further production is planned. Replacement stock is available through surplus and broker channels."},{"question":"What is the replacement for LM3S2533-EQC50-A2T?","answer":"Within the same Stellaris ARM Cortex-M3S 2000 family, the LM3S2536 is a pin-compatible upgrade with more Flash and RAM. It drops into the same 100-LQFP footprint and peripheral set, making it the closest direct replacement without a board change."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2533-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/LM3S2533-EQC50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}