{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S8538-IQC50-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S8538-IQC50-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S8538-IQC50-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S8538-IQC50-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 8000 series, LM3S8538-IQC50-A2T, 32-bit single-core MCU, 50 MHz, 96 KB Flash, 64 KB SRAM, CANbus, Ethernet, I²C, SPI, UART/USART, 36 I/O, 100-LQFP (14x14), tape-and-reel, -40°C to 85°C, 2.25 V to 2.75 V.","salesMarkdown":"The Texas Instruments LM3S8538-IQC50-A2T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 8000 series, clocked at 50 MHz with 96 KB of Flash and 64 KB of SRAM. It carries CANbus and Ethernet alongside I²C, SPI, UART/USART, and SSI — a connectivity set that suits industrial gateway, motor-drive, and building-automation controllers. At 50 MHz, this Cortex-M3 handles a single Modbus TCP poll cycle plus a PID loop update within a few microseconds — adequate for a multi-axis motor drive or a remote I/O gateway. It is not a high-throughput part; designs needing heavy protocol parsing or floating-point math will push the core to its limit. The 64 KB SRAM leaves room for two or three Ethernet packet buffers plus a modest RTOS heap.","metaTitle":"Texas Instruments LM3S8538-IQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz","metaDescription":"Texas Instruments LM3S8538-IQC50-A2T Stellaris ARM Cortex-M3S 8000 MCU, 32-bit single-core, 50 MHz, 96 KB Flash, 64 KB SRAM, CANbus/Ethernet, -40°C to 85°C, 100-LQFP. Obsolete — so","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"50MHz","title":"LM3S8538-IQC50-A2T","Series":"Stellaris® ARM® Cortex®-M3S 8000","Package":"Tape & Reel (TR)","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"CANbus, Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"36","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S8538","Program Memory Size":"96KB (96K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.7200","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S8538-IQC50-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S8538-IQC50-A2T?","answer":"No official pin-compatible replacement is listed by Texas Instruments. A migration within the Stellaris family would require reviewing the LM3S8000-series datasheets for a similar 100-LQFP part with matching peripheral set, but a full BOM revalidation is necessary."},{"question":"What is LM3S8538-IQC50-A2T's core speed?","answer":"The core runs at 50 MHz, which is the maximum clock frequency for this Cortex-M3 device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S8538-IQC50-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/LM3S8538-IQC50-A2T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}