{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S6422-IQC25-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S6422-IQC25-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S6422-IQC25-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S6422-IQC25-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3S6422-IQC25-A2, Stellaris ARM Cortex-M3S 6000 series, 25 MHz 32-bit single-core MCU with 96 KB Flash, 32 KB RAM, Ethernet, 34 I/O, 100-LQFP package, -40°C to 85°C, 2.25 V–2.75 V supply.","salesMarkdown":"## What this Stellaris MCU brings to a networked control board The 100-LQFP package provides 34 general-purpose I/O lines, two 10-bit ADC channels, and on-chip oscillators, so many designs can run without external clock components. ## Obsolete — planning the BOM transition For a production BOM that currently uses the LM3S6422, the practical path is either a last-time-buy buy to cover remaining builds or a qualification of a different Stellaris or Tiva-C family member that matches the 100-LQFP footprint and peripheral set — expect a firmware port and possibly a board respin. ## 25 MHz core — enough for what this part was designed for The 25 MHz Cortex-M3 core delivers around 0.8 DMIPS/MHz, so roughly 20 DMIPS available. That is comfortable for a control loop reading a few ADC channels and managing an Ethernet stack with lightweight TCP/IP; it will not run a Linux-class OS or heavy DSP. The 32 KB RAM is the real constraint — the Ethernet buffer and application heap share that space, so firmware must be lean. ## Ethernet on-chip — the feature that defines the use case The integrated Ethernet MAC/PHY is the standout peripheral. It saves an external PHY chip and the associated PCB routing, which is why this part was popular in cost-sensitive networked products like programmable logic controllers and remote I/O modules. The other serial interfaces (SPI, SSI, UART, IrDA, Microwire) cover most sensor and actuator links. The two 10-bit ADC channels are basic — adequate for monitoring voltages or currents, not precision analog.","metaTitle":"LM3S6422-IQC25-A2 Stellaris ARM Cortex-M3 MCU, 25 MHz","metaDescription":"Texas Instruments LM3S6422-IQC25-A2 Stellaris ARM Cortex-M3 MCU, 25 MHz, 96 KB Flash, 32 KB RAM, Ethernet, 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":"25MHz","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, IrDA, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"34","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 2x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S6422","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":"$15.3800","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S6422-IQC25-A2/alternatives.json"},"ai":{"faq":[{"question":"Does LM3S6422-IQC25-A2 have an Ethernet interface?","answer":"Yes, it includes an integrated Ethernet MAC/PHY, along with IrDA, Microwire, SPI, SSI, and UART/USART connectivity."},{"question":"Where can I buy LM3S6422-IQC25-A2?","answer":"Submit an RFQ for current availability and pricing — quotes are confirmed at order time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S6422-IQC25-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/LM3S6422-IQC25-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}}