{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9790-IBZ80-C1T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9790-IBZ80-C1T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9790-IBZ80-C1T","factsUrl":"https://icboms.com/api/mcp/products/LM3S9790-IBZ80-C1T","rawCanonicalId":null},"summary":{"shortDescription":"Stellaris® ARM® Cortex®-M3S 9000 series, LM3S9790-IBZ80-C1T, 32-bit single-core MCU, 80 MHz, 128 KB Flash, 64K x 8 RAM, 60 I/O, CAN/Ethernet/USB OTG, -40°C to 85°C, 108-BGA.","salesMarkdown":"## 80 MHz Cortex-M3 with a full connectivity stack The LM3S9790-IBZ80-C1T is a Stellaris ARM Cortex-M3 MCU running at 80 MHz with 128 KB of Flash and 64K x 8 of RAM. It carries a full set of peripherals — brown-out detect, DMA, I²S, POR, PWM, and WDT — plus connectivity that covers CAN, Ethernet, USB OTG, and a dozen serial protocols (I²C, SPI, UART, LIN, IrDA, Microwire, SSI). The 60 GPIOs and 16-channel 10-bit ADC give it the I/O for a control panel or a gateway board. ## What the 80 MHz core and 128 KB Flash mean for the BOM 80 MHz is a solid mid-range speed for a Cortex-M3 — fast enough to run a real-time control loop with a TCP/IP stack and a CANopen node, but not so fast that you need external memory or high-layer-count PCBs. The 64K x 8 RAM handles a couple of large buffers for Ethernet or USB without thrashing.","metaTitle":"LM3S9790-IBZ80-C1T Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"LM3S9790-IBZ80-C1T Stellaris ARM Cortex-M3 MCU, 80 MHz, 128 KB Flash, 64K x 8 RAM, CAN/Ethernet/USB, -40°C to 85°C. Obsolete; sourced to order against 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, EBI/EMI, Ethernet, I²C, IrDA, LINbus, Microwire, 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":"LM3S9790","Program Memory Size":"128KB (128K 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":"$9.0000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/57393517221c83ebf3150b260ab088b1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S9790-IBZ80-C1T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S9790-IBZ80-C1T?","answer":"No official pin-compatible successor is listed. For a new design, consider the current Stellaris or TM4C family from the same manufacturer; verify pin compatibility against the datasheet."},{"question":"What is LM3S9790-IBZ80-C1T's listed speed?","answer":"The core runs at 80 MHz."},{"question":"What is the LM3S9790-IBZ80-C1T's series?","answer":"It belongs to the Stellaris ARM Cortex-M3S 9000 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9790-IBZ80-C1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S9790-IBZ80-C1T 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}}