{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9DN5-IQC80-A1T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9DN5-IQC80-A1T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9DN5-IQC80-A1T","factsUrl":"https://icboms.com/api/mcp/products/LM3S9DN5-IQC80-A1T","rawCanonicalId":null},"summary":{"shortDescription":"TI Stellaris ARM Cortex-M3S 9000 series LM3S9DN5-IQC80-A1T, 32-bit single-core MCU, 80 MHz, 512 KB Flash, 96 KB RAM, integrated Ethernet MAC+PHY, CANbus, USB OTG, 72 I/O, 100-LQFP, -40 to 85°C, tape & reel.","salesMarkdown":"## What this Stellaris MCU brings to a networked design It integrates an Ethernet MAC with an on-chip PHY, a CANbus controller, USB OTG, and a 16-channel 12-bit ADC, so a single chip can serve as the application processor and communications gateway in an industrial controller, a building-automation panel, or a motor-drive node. ## Core supply — a detail that matters The core logic runs from a 1.235 V to 1.365 V supply — a tight window that requires a dedicated low-dropout regulator with ±2% accuracy or better. A generic 1.2 V rail will brown out the core under load; a 1.8 V rail will damage it. Plan for a precision 1.3 V LDO, not a shared 1.2 V or 1.8 V bus. There is no active factory production and no last-time-buy window still open — the only supply channel is the surplus and broker market, where traceable, date-coded inventory is sourced against an RFQ.","metaTitle":"LM3S9DN5-IQC80-A1T TI Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"TI Stellaris LM3S9DN5-IQC80-A1T ARM Cortex-M3 MCU, 80 MHz, 512 KB Flash, 96 KB RAM, integrated Ethernet MAC+PHY, CAN, USB OTG, 100-LQFP, -40 to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"80MHz","title":"LM3S9DN5-IQC80-A1T","Series":"Stellaris® ARM® Cortex®-M3S 9000","Package":"Tape & Reel (TR)","RAM Size":"96K x 8","Core Size":"32-Bit Single-Core","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, Ethernet, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"72","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Data Converters":"A/D 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S9DN5","Program Memory Size":"512KB (512K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.235V ~ 1.365V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LM3S9DN5-IQC80-A1T and get a price?","answer":"No stock or price figures are published because the spot market moves daily."},{"question":"Is LM3S9DN5-IQC80-A1T obsolete?","answer":"Yes, TI lists this part as obsolete. No factory orders are accepted; supply is limited to surplus and broker-channel inventory."},{"question":"Does LM3S9DN5-IQC80-A1T have integrated Ethernet?","answer":"Yes, it integrates an Ethernet MAC with a physical-layer transceiver (PHY) on-chip, plus CANbus and USB OTG — all three interfaces are built in without external transceivers for the MAC side."},{"question":"What is the closest pin-compatible alternative to LM3S9DN5-IQC80-A1T in this family?","answer":"Within the Stellaris LM3S9DN5 family, the base part LM3S9DN5-IQC80 (without the -A1T suffix) is the same silicon in the same 100-LQFP package, differing only in the tape-and-reel packaging variant. For a drop-in replacement, verify the exact firmware and any errata differences between the two date-code variants — the electrical and footprint compatibility is identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9DN5-IQC80-A1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S9DN5-IQC80-A1T 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}}