{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9792-IQC80-C3T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9792-IQC80-C3T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9792-IQC80-C3T","factsUrl":"https://icboms.com/api/mcp/products/LM3S9792-IQC80-C3T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 9000 series MCU, LM3S9792-IQC80-C3T, 32-bit single-core at 80 MHz, 128 KB Flash, 64 KB RAM, 65 I/O, Ethernet/USB OTG/CAN connectivity, -40°C to 85°C, 100-LQFP.","salesMarkdown":"The Texas Instruments LM3S9792-IQC80-C3T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris 9000 series, clocked at 80 MHz with 128 KB of Flash program memory and 64 KB of SRAM. It packs a full industrial-connectivity suite — Ethernet, USB OTG, CAN, plus multiple UART, SPI, I²C, and LIN interfaces — making it a fit for networked control nodes, protocol gateways, and motor-drive comms ports that need to talk to several buses at once. The 100-LQFP package gives you 65 GPIOs and a 16-channel 10-bit ADC on a 14x14 mm footprint that reflows cleanly with standard lead-free profiles. The 80 MHz core with single-cycle multiply and hardware divide gives this part enough headroom to run a lightweight TCP/IP stack alongside a real-time control loop. At this speed, the external memory interface (EBI/EMI) can keep up with a parallel LCD or SRAM expansion without wait-state tuning, as long as the board layout keeps trace lengths under 80 mm. The internal oscillator saves a crystal BOM line, but if you need tighter accuracy for Ethernet timing, the PLL locks to an external clock source.","metaTitle":"LM3S9792-IQC80-C3T Stellaris Cortex-M3 MCU, 80 MHz, 128 KB Flash, Obsolete","metaDescription":"LM3S9792-IQC80-C3T is an obsolete Stellaris ARM Cortex-M3 MCU with 80 MHz core, 128 KB Flash, 64 KB RAM, Ethernet, USB OTG, CAN. Sourced to order against RFQ through independent di","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, EBI/EMI, Ethernet, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"65","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":"LM3S9792","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/0cae999a8ac62b167cb92c5c09abf189.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S9792-IQC80-C3T/alternatives.json"},"ai":{"faq":[{"question":"What is the direct replacement for LM3S9792-IQC80-C3T?","answer":"There is no pin-compatible direct replacement from TI. The LM3S9791 is a sibling part but requires firmware and peripheral validation. A functional redesign would target a Cortex-M4 or M7 MCU with Ethernet and USB OTG, such as the TM4C129x or STM32F4 series, but the pinout and register map will not match."},{"question":"What are the specifications of LM3S9792?","answer":"Key specs: 80 MHz ARM Cortex-M3 core, 128 KB Flash, 64 KB SRAM, 65 GPIOs, 16-channel 10-bit ADC, Ethernet MAC+PHY, USB OTG, CAN, multiple UART/SPI/I²C, operating temperature -40°C to 85°C, 100-LQFP package, 1.235 V to 1.365 V core supply."},{"question":"Where can I buy LM3S9792-IQC80-C3T?","answer":"This obsolete part is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — stock and price are confirmed at quote time, not listed publicly."},{"question":"What is LM3S9792-IQC80-C3T's listed speed?","answer":"The core runs at 80 MHz, which is sufficient for running a lightweight TCP/IP stack alongside a real-time control loop without wait-state tuning on the external memory interface."},{"question":"What is LM3S9792-IQC80-C3T's listed series?","answer":"It belongs to the Stellaris ARM Cortex-M3S 9000 series from Texas Instruments, a family of industrial-grade MCUs with integrated Ethernet and CAN."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9792-IQC80-C3T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S9792-IQC80-C3T 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}}