{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9997-IQC80-C1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9997-IQC80-C1","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9997-IQC80-C1","factsUrl":"https://icboms.com/api/mcp/products/LM3S9997-IQC80-C1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 9000 series LM3S9997-IQC80-C1, 32-bit ARM Cortex-M3 MCU, 80 MHz, 256 KB Flash, 64 KB SRAM, Ethernet MAC+PHY, CAN, USB OTG, 100-LQFP, -40°C to 85°C.","salesMarkdown":"## 80 MHz Cortex-M3 with integrated Ethernet MAC — the networking MCU that got away The LM3S9997-IQC80-C1: With 60 GPIOs, a 16-channel 10-bit ADC, and peripherals like PWM, QEI, and I²S, this part was designed for industrial control, building automation, and networked sensor hubs where a single chip handles both the control loop and the Ethernet stack. Stock that surfaces today is typically from inventory buyouts, excess OEM lots, or end-of-life sweep purchases. Date-code provenance and traceability matter here — verify that the parts are genuine TI marked units, not remarked or recycled pulls. ## Ethernet MAC + CAN + USB OTG — the connectivity trifecta The CAN controller supports industrial fieldbus applications, while USB OTG enables dual-role host/device operation for data logging or firmware updates. ## Supply voltage and temperature — a narrow core rail The core supply range is 1.235 V to 1.365 V.","metaTitle":"LM3S9997-IQC80-C1 Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"LM3S9997-IQC80-C1 32-bit ARM Cortex-M3 MCU, 80 MHz, 256 KB Flash, 64 KB SRAM, Ethernet MAC+PHY, CAN, USB OTG.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"80MHz","Series":"Stellaris® ARM® Cortex®-M3S 9000","Package":"Tray","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, Ethernet, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"60","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 16x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S9997","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)":"1.235V ~ 1.365V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a16760f1b1ed2b544492e5acf48839b9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LM3S9997-IQC80-C1 obsolete?","answer":"Yes, the LM3S9997-IQC80-C1 is officially obsolete. Texas Instruments discontinued the Stellaris 9000 series, and no last-time-buy remains available from the factory. The part is only obtainable through independent surplus and broker channels."},{"question":"What is the replacement for LM3S9997-IQC80-C1?","answer":"TI did not assign a direct pin-compatible replacement within the Stellaris family. For new designs, the closest functional alternatives are from the TI Tiva C Series (e.g., TM4C129x) which offer Cortex-M4 cores with Ethernet MAC+PHY, CAN, and USB OTG, though the pinout and register map differ. A full BOM-level migration is required."},{"question":"Does LM3S9997-IQC80-C1 have an Ethernet MAC?","answer":"Yes, the LM3S9997-IQC80-C1 includes an integrated Ethernet MAC with on-chip PHY, supporting 10/100 Mbps operation. This is one of its key differentiating features."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9997-IQC80-C1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S9997-IQC80-C1 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}}