{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S2533-IBZ50-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S2533-IBZ50-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S2533-IBZ50-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S2533-IBZ50-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 series microcontroller, LM3S2533-IBZ50-A2, 32-bit single-core, 50MHz, 96KB Flash, 64K x 8 RAM, 108-LFBGA, tray.","salesMarkdown":"## What this MCU brings to a BOM The LM3S2533-IBZ50-A2: It packs 96 KB of on-chip Flash and 64K x 8 of SRAM — enough for a moderate control loop or communication stack without external memory. The 108-LFBGA package (10x10 mm body) keeps the footprint compact, but the 0.5 mm pitch and BGA layout mean it's not a hand-solder candidate — plan for a reflow profile and a 4-layer board for fan-out. ## Peripherals and connectivity for industrial control 48 general-purpose I/O lines give plenty of headroom for sensor inputs, actuator outputs, and a parallel LCD or keypad matrix. On-chip peripherals include a 3-channel 10-bit ADC, brown-out detect, POR, PWM, and a watchdog timer — enough to run a motor-control or human-machine interface node without external supervisory ICs. For serial communication, the part supports CANbus, I²C, IrDA, Microwire, SPI, SSI, and UART/USART — so it can talk to a CANopen fieldbus, a serial EEPROM, and a UART-to-USB bridge all on the same chip. ## Supply voltage and temperature range An internal oscillator is available, so a basic design can skip an external crystal — but for CAN or precision timing, an external clock source is still recommended. ## Lifecycle reality: NRND and what that means Texas Instruments lists this part as NRND (Not Recommended for New Designs). That means it's still available for existing production runs, but TI is not actively promoting it for new projects. For a new design, look at TI's current Stellaris or Tiva C Series parts — but verify pin-compatibility and memory size, because the 108-BGA footprint is not guaranteed to carry over. For BOM sustainment, we can source the LM3S2533-IBZ50-A2 against an RFQ through independent distribution channels.","metaTitle":"LM3S2533-IBZ50-A2 Texas Instruments ARM Cortex-M3 MCU, 50MHz","metaDescription":"Texas Instruments LM3S2533-IBZ50-A2 Stellaris ARM Cortex-M3 MCU, 50MHz, 96KB Flash, 64KB RAM, 108-BGA. NRND — sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 2000","Package":"Tray","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":"108-LFBGA","Product Status":"Not For New Designs","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~85°C(TA)","Supplier Device Package":"108-BGA (10x10)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$19.4016","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/38b03106a267df1019dd902dd40d5344.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S2533-IBZ50-A2/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S2533-IBZ50-A2 in this Microcontrollers & Processors (MCU / MPU / DSP) family?","answer":"Texas Instruments does not list a direct pin-compatible successor for the LM3S2533-IBZ50-A2 in the 108-BGA package. For a new design, consider TI's current Stellaris or Tiva C Series parts, but verify the package, memory, and peripheral set — the 108-BGA footprint is not guaranteed to carry over."},{"question":"What is LM3S2533-IBZ50-A2's listed speed (50MHz) on this Microcontrollers & Processors (MCU / MPU / DSP) line?","answer":"The LM3S2533-IBZ50-A2 is rated for a 50 MHz core speed. This is the maximum clock frequency for the ARM Cortex-M3 core, with the flash wait-state profile determining the actual instruction throughput at that speed."},{"question":"What compliance documentation does Texas Instruments provide for LM3S2533-IBZ50-A2 (RoHS, REACH, UL, IEC)?","answer":"Texas Instruments provides RoHS and REACH compliance data for the LM3S2533-IBZ50-A2 through its standard documentation portal. For specific compliance certificates, request them with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S2533-IBZ50-A2","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-IBZ50-A2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:51:06.281Z","lastPublished":"2026-07-21T02:51:06.281Z","indexable":true}}