{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1969-IQC50-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1969-IQC50-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1969-IQC50-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S1969-IQC50-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 MCU, LM3S1969-IQC50-A2, 32-bit, 50MHz, 256KB Flash, 64K x 8 RAM, 100-LQFP.","salesMarkdown":"## 50MHz ARM Cortex-M3 with 256KB Flash — where it fits The LM3S1969-IQC50-A2: That memory profile suits control-loop firmware with moderate data logging — the flash holds the application image plus a small file system, while the SRAM leaves headroom for the stack and a real-time OS footprint. The 100-LQFP package (14x14 mm) is a hand-solderable fine-pitch QFP — rework is feasible with a hot-air station and a stencil, though the 0.5 mm pitch demands careful alignment. Fifty-two GPIOs are available, though some share pins with the integrated peripherals: two UART/USART modules, two SPI/SSI ports, I²C, IrDA, a QEI for quadrature encoder inputs, and a Microwire interface. The 8-channel 10-bit ADC samples at the rated speed — enough for reading potentiometers, current-sense resistors, or thermistor dividers in a motor-drive feedback loop. The internal oscillator starts the core without a crystal — useful for a board that must boot before the external clock is stable. ## Obsolete — sourcing reality and what replaces it Texas Instruments has marked the LM3S1969-IQC50-A2 as obsolete. The Stellaris family was migrated to the Tiva C series, but those parts use a different package and peripheral map — a board respin is required for a drop-in replacement. Available through independent surplus and franchised-excess channels. Lot traceability and date codes are confirmed at RFQ. Pricing reflects the spot market for an end-of-life part — quote against your BOM quantity for current availability.","metaTitle":"LM3S1969-IQC50-A2 Texas Instruments MCU, 50MHz, 256KB Flash","metaDescription":"Texas Instruments LM3S1969-IQC50-A2 Stellaris ARM Cortex-M3 MCU, 50MHz, 256KB Flash, 64KB 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":"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":"52","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1969","Program Memory Size":"256KB (256K 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 ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/564a97e09cbad2f36abdac9fd35f09ce.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for LM3S1969-IQC50-A2?","answer":"Submit an RFQ against your BOM quantity. Availability and current market pricing are confirmed at quote time through franchised-excess and independent-distribution channels."},{"question":"What is the closest pin-compatible alternative to LM3S1969-IQC50-A2?","answer":"No official pin-compatible successor exists from Texas Instruments. The Stellaris family was superseded by the Tiva C series, but those devices have a different pinout and peripheral set — a PCB redesign is necessary."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1969-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/LM3S1969-IQC50-A2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:46:18.584Z","lastPublished":"2026-07-21T02:46:18.584Z","indexable":true}}