{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9L97-IQC80-C3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9L97-IQC80-C3","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9L97-IQC80-C3","factsUrl":"https://icboms.com/api/mcp/products/LM3S9L97-IQC80-C3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 9000 series LM3S9L97-IQC80-C3, 32-bit single-core MCU at 80 MHz, 128 KB Flash, 48 KB SRAM, 60 I/O, Ethernet MAC+PHY, USB OTG, CAN, LIN, SPI, SSI, I²C, 100-LQFP, -40°C to 85°C, tray.","salesMarkdown":"## Stellaris ARM Cortex-M3 with Ethernet and USB OTG — what this part brings to a BOM The LM3S9L97-IQC80-C3 is a 32-bit ARM Cortex-M3 MCU from the Stellaris 9000 series, clocked at 80 MHz with 128 KB of Flash and 48 KB of SRAM. It includes Ethernet MAC+PHY, USB OTG, CAN, LIN, I²C, SPI, SSI, and a quadrature encoder interface. The 60 general-purpose I/O are mapped across the 100-LQFP package, with the A/D converter block providing 16 channels at 10-bit resolution. ## Industrial temperature range and peripheral integration Supply voltage range is 1.235 V to 1.365 V for the core rail; I/O bank runs separately. Brown-out detect and POR blocks eliminate the need for an external supervisor on the core rail. The Ethernet PHY is on-die, which saves a separate PHY chip and its associated magnetics routing — but the 100-LQFP package still needs careful layout for the differential pairs. The USB OTG port can act as host or device, useful for field firmware updates via USB stick or direct connection to a laptop.","metaTitle":"Texas Instruments LM3S9L97-IQC80-C3 Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"TI LM3S9L97-IQC80-C3 Stellaris ARM Cortex-M3S 9000 series MCU, 80 MHz 32-bit, 128KB Flash, 48KB SRAM, Ethernet/USB OTG/CAN, 100-LQFP, -40°C to 85°C. Obsolete — sourced to order aga","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/615f2445e1c0b80474e300b667fa0f09.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S9L97-IQC80-C3/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for LM3S9L97-IQC80-C3?","answer":"Texas Instruments has not published a direct pin-compatible replacement for the LM3S9L97-IQC80-C3. The Stellaris family was superseded by the Tiva C Series (TM4C123/129), but those require a board redesign. Within the same Stellaris 9000 series, the LM3S9L97-IQC80-C5 is the closest sibling — same die and package, different suffix — but verify the exact specifications before ordering as a substitute."},{"question":"Where can I buy LM3S9L97-IQC80-C3?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment. No factory stock or authorized-distributor pipeline exists for this obsolete code."},{"question":"What is LM3S9L97-IQC80-C3's listed speed?","answer":"The core is rated at 80 MHz, which delivers approximately 100 DMIPS on the ARM Cortex-M3 architecture. This is the headline performance spec for throughput calculations and timing closure."},{"question":"What is the operating temperature range of LM3S9L97-IQC80-C3?","answer":"The device is rated for -40°C to 85°C ambient, which covers industrial environments such as factory automation, outdoor telecom, and engine-adjacent enclosures."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9L97-IQC80-C3","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-C3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}