{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9L97-IQC80-C0","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9L97-IQC80-C0","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9L97-IQC80-C0","factsUrl":"https://icboms.com/api/mcp/products/LM3S9L97-IQC80-C0","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 9000 series LM3S9L97-IQC80-C0, 32-bit ARM Cortex-M3 MCU, 80MHz, 128KB Flash, 48KB RAM, Ethernet + USB OTG, 60 I/O, 100-LQFP, -40 to 85°C.","salesMarkdown":"## What the LM3S9L97-IQC80-C0 actually is This part was designed for connected industrial control, building automation gateways, and any application needing a single-chip network endpoint with real-time control capability. The 80 MHz core clock handles protocol stacks and control loops without a separate communications processor. The LM3S9L97-IQC80-C0 is Obsolete. For production builds, this part is available only through independent distribution and surplus channels. Any new design should target an active alternate — the Stellaris line was acquired by TI from Luminary Micro and has been superseded by the Tiva C series and other Cortex-M4 families, though pin-compatibility is not guaranteed. ## Connectivity set — Ethernet, USB OTG, CAN, and more The QEI (quadrature encoder interface) is a nice addition for motor-feedback applications. With 60 GPIOs in a 100-pin LQFP, you have enough pins to bring out most of these interfaces simultaneously — useful for a design that needs to talk to a factory network over Ethernet, log data over USB, and control a motor drive over CAN, all from one chip. The 1.235 V to 1.365 V core supply is tight — the board needs a clean 1.3 V rail derived from the main 3.3 V supply, typically from a small LDO.","metaTitle":"LM3S9L97-IQC80-C0 Stellaris ARM Cortex-M3 MCU, 80MHz","metaDescription":"Texas Instruments LM3S9L97-IQC80-C0 Stellaris ARM Cortex-M3S 9000 MCU. 80MHz core, 128KB Flash, 48KB RAM, Ethernet+USB OTG, -40 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":"48K 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":"LM3S9L97","Program Memory Size":"128KB (128K 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/6dca4f1fa52b79fedb7b8abd94b9c547.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for LM3S9L97-IQC80-C0?","answer":"Texas Instruments does not list a direct pin-compatible replacement for this Stellaris part. The Tiva C series (TM4C123GH6PM or TM4C1294NCPDT) offers similar or better performance with a Cortex-M4 core, more memory, and an updated peripheral set, but the pinout differs. Check the TM4C datasheet for package options and migration guidance. For legacy BOM support, we can source the LM3S9L97-IQC80-C0 through surplus channels."},{"question":"Where can I buy the LM3S9L97-IQC80-C0?","answer":"As an obsolete part, the LM3S9L97-IQC80-C0 is available through independent distributors and surplus brokers."},{"question":"What is the LM3S9L97-IQC80-C0's core speed and memory?","answer":"The ARM Cortex-M3 core runs at 80 MHz. Program memory is 128 KB of Flash, and SRAM is 48 KB. This is sufficient for running a lightweight RTOS with TCP/IP and USB stacks, but memory-constrained for applications with large data buffers or complex GUI frame stores."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9L97-IQC80-C0","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S9L97-IQC80-C0 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}}