{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1150-IQC50-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1150-IQC50-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1150-IQC50-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S1150-IQC50-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series LM3S1150-IQC50-A2, 32-Bit Single-Core MCU, 50MHz, 64KB (64K x 8) FLASH, 16K x 8 RAM, 52 I/O, 2.25V~2.75V, -40°C~85°C, 100-LQFP.","salesMarkdown":"## 50 MHz Cortex-M3 with 64 KB Flash — what the specs mean for your BOM It carries 64 KB of on-chip Flash for program storage and 16K x 8 of SRAM for data — a memory footprint sized for moderate control firmware, sensor fusion, or motor-control loops without external memory. ## Obsolete — plan your last-time-buy or cross-reference now No further factory orders will be accepted; the only channel left is independent distribution — surplus stock, new-old-stock reels, or broker-sourced units. The Stellaris family was TI's early Cortex-M3 line, and TI's current portfolio has moved to the TM4C series, but those are not pin-compatible — expect a board respin if you migrate.","metaTitle":"LM3S1150-IQC50-A2 Stellaris ARM Cortex-M3 MCU, 50 MHz","metaDescription":"LM3S1150-IQC50-A2 Stellaris ARM Cortex-M3 MCU, 50 MHz, 64 KB Flash, 16K x 8 RAM, 52 I/O, -40°C to 85°C, 100-LQFP.","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":"16K 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":"Active","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1150","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2.25V ~ 2.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$30.1106","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1150-IQC50-A2/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LM3S1150-IQC50-A2?","answer":"LM3S1150-IQC50-A2 is obsolete from the factory, but we source it through independent distribution — new-old-stock and surplus inventory. Submit an RFQ; we confirm availability and current pricing at quote time. No stock or price figures are published because the supply is variable."},{"question":"Is LM3S1150-IQC50-A2 obsolete?","answer":"No further factory orders are accepted. Procurement must go through surplus or broker channels."},{"question":"What is the replacement for LM3S1150-IQC50-A2?","answer":"TI does not list a direct pin-compatible replacement for the LM3S1150-IQC50-A2 within the Stellaris family. The TM4C series is the architectural successor but requires a board layout change. For a like-for-like swap, the closest sibling is the LM3S1165 (same package, more Flash), but that part is also obsolete. A migration to a current TI Cortex-M4F (TM4C123 or TM4C129) or an STM32F103 is common, but neither is pin-compatible — expect a hardware and firmware redesign."},{"question":"What is the difference between LM3S1150 and LM3S1165?","answer":"The LM3S1165 carries more program memory — 128 KB Flash versus 64 KB on the LM3S1150 — and adds a USB 2.0 full-speed device/host/OTG interface. Both share the same 100-LQFP package, 50 MHz Cortex-M3 core, and 16K x 8 SRAM. The LM3S1165 is also obsolete."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1150-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/LM3S1150-IQC50-A2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}