{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1538-IQC50-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1538-IQC50-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1538-IQC50-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S1538-IQC50-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series MCU, LM3S1538-IQC50-A2, 50MHz, 96KB Flash, 64KB RAM, 100-LQFP, -40°C to 85°C.","salesMarkdown":"## Core architecture and on-chip memory The LM3S1538-IQC50-A2: The Cortex-M3 core delivers deterministic interrupt handling with a single-cycle multiply and hardware divide, making it suited for real-time control loops and sensor fusion tasks. Program memory is 96 KB of on-chip flash, backed by 64 KB of SRAM (organized as 64K x 8). This memory split provides enough headroom for a moderate firmware image plus a data buffer for logging or communication stacks without external memory. The device integrates a 10-bit ADC with 8 channels, along with PWM, watchdog timer, and brown-out detect/reset. For serial communication it supports I²C, SPI, SSI, UART/USART, IrDA, Microwire, and a quadrature encoder interface (QEI). This set covers most sensor and actuator links in a typical embedded control board. ## Lifecycle reality for procurement Texas Instruments lists the LM3S1538-IQC50-A2 as NRND (Not Recommended for New Designs). This means the part is still available for existing production but is not intended for new design starts.","metaTitle":"TI LM3S1538-IQC50-A2 ARM Cortex-M3 MCU, 50MHz, 96KB Flash","metaDescription":"Texas Instruments LM3S1538-IQC50-A2 Stellaris ARM Cortex-M3 MCU, 50MHz, 96KB Flash, 64KB RAM, 100-LQFP. NRND lifecycle – sourced to order against RFQ.","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 1000","Package":"Tray","RAM Size":"64K 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":"43","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Not For New Designs","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1538","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":"$30.9040","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1538-IQC50-A2/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for LM3S1538-IQC50-A2?","answer":"Submit an RFQ through this listing."},{"question":"What is the closest pin-compatible alternative to LM3S1538-IQC50-A2?","answer":"The Stellaris family has been superseded by the Tiva C series, which uses a different pinout and requires a board spin. For an exact drop-in replacement, the existing LM3S1538-IQC50-A2 stock is the only option."},{"question":"What compliance documentation does Texas Instruments provide for LM3S1538-IQC50-A2?","answer":"Texas Instruments provides RoHS and REACH compliance declarations for this part. The device is lead-free and the 100-LQFP package is compatible with standard lead-free reflow profiles. No AEC-Q100 or UL certification is listed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1538-IQC50-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/LM3S1538-IQC50-A2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:42:19.642Z","lastPublished":"2026-07-21T02:42:19.642Z","indexable":true}}