{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9997-IBZ80-C1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9997-IBZ80-C1","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9997-IBZ80-C1","factsUrl":"https://icboms.com/api/mcp/products/LM3S9997-IBZ80-C1","rawCanonicalId":null},"summary":{"shortDescription":"Stellaris® ARM® Cortex®-M3S 9000 series, LM3S9997-IBZ80-C1, 32-Bit Single-Core MCU, 80MHz, 256KB Flash, 64K x 8 SRAM, 108-LFBGA, -40°C~85°C.","salesMarkdown":"The 108-LFBGA package (10x10 mm) keeps the footprint compact for space-constrained PCBs. ## 80 MHz Cortex-M3 with Ethernet and CAN — where the cycle is today This part is officially obsolete per the manufacturer's lifecycle record. That means TI no longer produces it, and there is no direct pin-compatible successor listed in the Stellaris family. For existing BOM lines, the window to secure last-time-buy inventory has passed; sourcing now relies on available excess stock, which we can quote against an RFQ. The spot market for this code is thin but traceable — franchised excess and verified broker lots are the typical source. ## Connectivity set for gateway-class applications The LM3S9997-IBZ80-C1 integrates Ethernet MAC+PHY, a USB OTG controller, and two CAN 2.0B interfaces alongside legacy serial options (UART, SPI, I²C, SSI, Microwire, IrDA). The 60 general-purpose I/O pins, combined with PWM, QEI, and DMA, give enough headroom for motor control or sensor fusion without an external FPGA. ## Package and power supply realities The I/O bank runs at 3.3 V.","metaTitle":"LM3S9997-IBZ80-C1 Stellaris ARM Cortex-M3 MCU, 80MHz","metaDescription":"LM3S9997-IBZ80-C1 is an obsolete Stellaris ARM Cortex-M3 MCU with 80MHz core, 256KB Flash, 64KB SRAM, Ethernet, USB OTG, CAN. Industrial temp -40°C to 85°C.","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":"108-LFBGA","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":"108-BGA (10x10)","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-IBZ80-C1 obsolete?","answer":"Yes, the LM3S9997-IBZ80-C1 is officially obsolete. TI no longer manufactures it, and there is no direct pin-compatible replacement from the Stellaris family. We can source and quote it against an RFQ through verified distribution channels."},{"question":"What is the replacement or equivalent for LM3S9997-IBZ80-C1?","answer":"TI has not published a direct pin-compatible successor for the LM3S9997-IBZ80-C1. For new designs, consider current-generation Cortex-M4 or M7 MCUs with Ethernet, CAN, and USB OTG, such as the TM4C129x series from TI, though these require a PCB redesign due to different package and pinout. For a drop-in replacement, no equivalent exists; the only option is sourcing the original obsolete part through the secondary market."},{"question":"Can LM3S9997-IBZ80-C1 be used for new designs?","answer":"No, because the part is obsolete and no longer in production. Starting a new design with this MCU carries supply risk and no manufacturer support. It is recommended to select an active, current-generation microcontroller with similar connectivity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9997-IBZ80-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-IBZ80-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}}