{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9997-IQC80-C5T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9997-IQC80-C5T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9997-IQC80-C5T","factsUrl":"https://icboms.com/api/mcp/products/LM3S9997-IQC80-C5T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 9000 series 32-bit MCU, LM3S9997-IQC80-C5T, 80 MHz, 256 KB flash, 64 KB SRAM, 100-LQFP, -40 to 85 °C.","salesMarkdown":"## Core architecture and memory map The LM3S9997-IQC80-C5T: The 256 KB on-chip flash and 64 KB SRAM leave room for a full TCP/IP stack and application logic without external memory. ## Connectivity and peripheral set On-chip connectivity includes Ethernet MAC+PHY, USB OTG, two CAN 2.0B controllers, and multiple UART/SPI/I²C serial interfaces — enough to serve as a gateway node in an industrial control network. The peripheral set also includes a quadrature encoder interface (QEI) for motor position feedback, PWM outputs, DMA for memory-to-peripheral transfers, and a 16-channel 10-bit ADC. ## Package, supply, and temperature grade Housed in a 100-pin LQFP (14×14 mm body) with 60 general-purpose I/O lines. Rated for industrial temperature range -40 °C to +85 °C, making it suitable for factory-floor controllers and outdoor equipment enclosures. Texas Instruments lists the LM3S9997-IQC80-C5T as obsolete. The 100-LQFP footprint is shared by other Stellaris parts, but a direct drop-in replacement requires verifying the exact pinout and peripheral set against the BOM position.","metaTitle":"Texas Instruments LM3S9997-IQC80-C5T Cortex-M3 MCU, 80 MHz","metaDescription":"Texas Instruments LM3S9997-IQC80-C5T Stellaris ARM Cortex-M3 MCU, 80 MHz, 256 KB flash, 64 KB SRAM, 100-LQFP. Obsolete — sourced to order against an RFQ.","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":"Tape & Reel (TR)","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":"$8.4400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a16760f1b1ed2b544492e5acf48839b9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S9997-IQC80-C5T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S9997-IQC80-C5T?","answer":"The Stellaris family includes other 100-LQFP parts, but each has a different peripheral mix and memory size — verify the exact pinout against your board before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9997-IQC80-C5T","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-C5T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:57:40.367Z","lastPublished":"2026-07-21T02:57:40.367Z","indexable":true}}