{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S6432-IQC50","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S6432-IQC50","canonicalUrl":"https://icboms.com/texas-instruments/LM3S6432-IQC50","factsUrl":"https://icboms.com/api/mcp/products/LM3S6432-IQC50","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 6000 series MCU, LM3S6432-IQC50, 32-Bit Single-Core 50MHz, 96KB Flash, 32K x 8 RAM, Ethernet/I²C/SPI/UART, 100-LQFP, -40°C~85°C.","salesMarkdown":"The 100-pin LQFP package provides 43 general-purpose I/Os. This part was designed for industrial and networked embedded control — think motor drives, building automation gateways, or any application needing a compact Cortex-M3 with a wired Ethernet link. Texas Instruments no longer manufactures this device, and no direct pin-compatible replacement has been announced under the same base number. Any inventory you find will be new-old-stock or pulled from existing builds. If you are qualifying a design today, look at current-generation Cortex-M3 or Cortex-M4 parts with Ethernet — the Stellaris family was migrated to the TM4C series, but the pinout and peripheral set differ, so a board respin is required. ## Key ratings and their design impact The 50 MHz core clock is enough for protocol stacks (TCP/IP, Modbus TCP) and real-time control loops without external memory. The Ethernet MAC is a media-access controller — you still need an external PHY chip and magnetics.","metaTitle":"LM3S6432-IQC50 Stellaris ARM Cortex-M3 MCU, 50 MHz","metaDescription":"Obsolete LM3S6432-IQC50 Stellaris ARM Cortex-M3 MCU with 50 MHz core, 96 KB Flash, 32 KB SRAM, Ethernet MAC.","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 6000","Package":"Tray","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"43","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 3x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S6432","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0ba6ea026782641865aa7afaf3432789.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S6432-IQC50/alternatives.json"},"ai":{"faq":[{"question":"Is the LM3S6432-IQC50 obsolete?","answer":"Yes, Texas Instruments lists the LM3S6432-IQC50 as Obsolete. It is no longer in production and has no direct replacement from TI. Any supply comes from the surplus channel."},{"question":"What is the replacement for the LM3S6432-IQC50?","answer":"There is no pin-compatible replacement announced by Texas Instruments. The Stellaris family was superseded by the TM4C series, but the pinout and peripheral map differ. A board redesign is necessary to migrate to a current MCU with Ethernet."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S6432-IQC50","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S6432-IQC50 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}}