{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9U90-IBZ80-A1T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9U90-IBZ80-A1T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9U90-IBZ80-A1T","factsUrl":"https://icboms.com/api/mcp/products/LM3S9U90-IBZ80-A1T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 9000 series LM3S9U90-IBZ80-A1T, 32-bit single-core MCU, 80MHz, 384KB Flash, 96KB RAM, Ethernet, USB OTG, CANbus, 108-LFBGA, -40°C to 85°C, Tape & Reel.","salesMarkdown":"Texas Instruments has ended production of the Stellaris LM3S9U90 series; there is no direct pin-compatible replacement from TI. This part is available now only through independent distribution — surplus factory reels or customer returns that have been verified. The 108-BGA package (10x10 mm) and the specific peripheral mix (Ethernet + USB OTG + CANbus) make it a last-time-buy candidate for legacy designs that cannot justify a board respin. ## 80 MHz Cortex-M3 with a full peripheral set This is a Texas Instruments Stellaris ARM Cortex-M3 32-bit single-core MCU running at 80 MHz. There is also an EBI/EMI bus for external memory or FPGA attachment. The 12-bit ADC has 16 channels. The core supply is 1.235 V to 1.365 V; I/O rails are typically 3.3 V (not separately listed but standard for this family). ## 108-BGA package — design-in notes This is a fine-pitch BGA — expect a ball pitch around 0.8 mm or 0.65 mm (typical for this body size and ball count). The mounting is surface mount only. For rework, the standard lead-free profile applies; If the original sealed reel is intact, the moisture barrier is preserved.","metaTitle":"LM3S9U90-IBZ80-A1T ARM Cortex-M3 MCU, 80MHz, 384KB Flash","metaDescription":"Texas Instruments Stellaris LM3S9U90-IBZ80-A1T ARM Cortex-M3 32-bit MCU, 80MHz, 384KB Flash, 96KB RAM, Ethernet/USB OTG/CANbus, 108-LFBGA, -40°C 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":"Tape & Reel (TR)","RAM Size":"96K 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":"60","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Obsolete","Data Converters":"A/D 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S9U90","Program Memory Size":"384KB (384K 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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d5a3c7f4e6d8156d26ead837ff8fd0d0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LM3S9U90-IBZ80-A1T obsolete and what are the alternatives?","answer":"Yes, the LM3S9U90-IBZ80-A1T is obsolete. There is no official pin-compatible replacement from Texas Instruments. For a new design, consider a current-generation ARM Cortex-M4 or M7 MCU with Ethernet and USB OTG from TI's TM4C or other series, but a board layout change will be required due to the different package and pinout. For a legacy BOM that must stay on the LM3S9U90, the only option is surplus or broker-channel stock."},{"question":"Does LM3S9U90-IBZ80-A1T support CANbus and Ethernet?","answer":"Yes. The LM3S9U90-IBZ80-A1T includes both CANbus and Ethernet connectivity. The Ethernet interface is a full MAC+PHY, and there are two CANbus controllers. This makes it suitable for industrial gateways, building automation controllers, and automotive diagnostic tools that need both networking and fieldbus."},{"question":"What is the price of LM3S9U90-IBZ80-A1T?","answer":"Pricing for the obsolete LM3S9U90-IBZ80-A1T varies by date code, quantity, and condition of the surplus lot. We quote firm pricing against an RFQ — no list price applies. Submit an RFQ with your target quantity and acceptable date-code window for a current quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9U90-IBZ80-A1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S9U90-IBZ80-A1T 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}}