{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9790-IBZ80-C3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9790-IBZ80-C3","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9790-IBZ80-C3","factsUrl":"https://icboms.com/api/mcp/products/LM3S9790-IBZ80-C3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 9000 series LM3S9790-IBZ80-C3, 32-Bit Single-Core MCU, 80MHz, 128KB FLASH, 64K x 8 RAM, 60 I/O, 108-LFBGA, -40°C~85°C.","salesMarkdown":"The 108-ball BGA package (10x10 mm) keeps the footprint compact for space-constrained designs. TI formally ended production on the Stellaris line after the acquisition by Luminary Micro and subsequent portfolio consolidation. There is no direct pin-compatible successor from TI; the Stellaris architecture was superseded by the Tiva C Series (TM4C) family, which uses a different pinout and peripheral map. For an existing BOM that cannot be redesigned, the only sourcing channel is the independent distribution market — new-old-stock or surplus inventory, with date-code and lot-traceability verification critical given the age of the parts in the channel. The core supply operates from 1.235 V to 1.365 V — a dedicated 1.3 V rail, not the usual 3.3 V or 1.8 V — so the power tree needs a separate low-noise LDO or switcher for the VDD. The I/O bank runs at 3.3 V. With 60 GPIOs and multiplexed peripheral functions, the pin-mux configuration must be locked early in the layout stage to avoid signal-routing conflicts. ## Peripheral set — Ethernet, CAN, and USB on one die This MCU includes an Ethernet MAC with integrated PHY, a CAN 2.0B controller, and a USB OTG interface — a rare combination in a single Cortex-M3 device from that era. The 16-channel 10-bit ADC, PWM timer, and DMA controller round out the set for motor-control or sensor-fusion applications that also need network connectivity.","metaTitle":"LM3S9790-IBZ80-C3 Stellaris Cortex-M3 MCU, 80MHz","metaDescription":"Texas Instruments LM3S9790-IBZ80-C3 is an obsolete Stellaris ARM Cortex-M3 MCU with 80MHz core, 128KB Flash, 64Kx8 RAM, Ethernet, CAN, USB OTG in 108-BGA.","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":"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-C3/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S9790-IBZ80-C3 obsolete?","answer":"Yes, the LM3S9790-IBZ80-C3 is marked as Obsolete. TI no longer manufactures this Stellaris part. Availability is limited to surplus and new-old-stock inventory in the independent distribution channel."},{"question":"What is the replacement for LM3S9790-IBZ80-C3?","answer":"There is no direct pin-compatible replacement from Texas Instruments. The Stellaris family was replaced by the Tiva C Series (TM4C) microcontrollers, which use a different pinout and peripheral set. A redesign is required to migrate to a current-production Cortex-M4F part such as the TM4C129x series, which offers Ethernet, CAN, and USB but in a different package and with different software requirements."},{"question":"Does LM3S9790-IBZ80-C3 have built-in Ethernet?","answer":"Yes, the LM3S9790-IBZ80-C3 integrates an Ethernet MAC with an internal PHY, along with CAN 2.0B and USB OTG connectivity on the same die."},{"question":"What is the pin count of LM3S9790-IBZ80-C3?","answer":"The LM3S9790-IBZ80-C3 is supplied in a 108-ball LFBGA package with 60 general-purpose I/O pins."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9790-IBZ80-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/LM3S9790-IBZ80-C3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}