{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9U90-IQC80-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9U90-IQC80-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9U90-IQC80-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S9U90-IQC80-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 9000 series LM3S9U90-IQC80-A2, 32-bit single-core MCU, 80 MHz, 384 KB Flash, 96 KB RAM, 60 I/O, Ethernet/CAN/USB OTG, 100-LQFP tray, -40°C to 85°C, 1.235 V to 1.365 V core supply.","salesMarkdown":"## 80 MHz Cortex-M3 with industrial connectivity — what it brings to the BOM The 100-LQFP package exposes 60 GPIOs. This part was designed for networked industrial control, building automation, and motor-drive applications where a single chip handles both the control loop and the fieldbus or Ethernet link. ## Industrial temperature rating — deployment scope The core supply is a tight 1.235 V to 1.365 V — a dedicated 1.3 V rail is needed, not a shared 3.3 V bus. The Stellaris line was acquired by TI and later phased out in favour of the Tiva-C and Hercules families, but those are not pin-compatible. For a BOM that already carries this part, the remaining supply is in the surplus and broker channel — sealed reels with consistent date-codes are the preferred buy. ## Pin-compatible alternatives in the Stellaris family Within the same 100-LQFP Stellaris 9000 series, the LM3S9U92 shares the same footprint and peripheral set but adds a second Ethernet MAC. The LM3S9U90 and LM3S9U92 are pin-compatible, so a board designed for the LM3S9U90 can accept the LM3S9U92 without a layout change, provided the firmware accounts for the extra Ethernet port.","metaTitle":"LM3S9U90-IQC80-A2 Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"TI Stellaris LM3S9U90-IQC80-A2 ARM Cortex-M3 MCU, 80 MHz, 384 KB Flash, 96 KB RAM, Ethernet/CAN/USB OTG, 100-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"80MHz","title":"LM3S9U90-IQC80-A2","Series":"Stellaris® ARM® Cortex®-M3S 9000","Package":"Tray","RAM Size":"96K x 8","Core Size":"32-Bit Single-Core","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":"100-LQFP","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":"100-LQFP (14x14)","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":"What is the replacement for LM3S9U90-IQC80-A2?","answer":"No official successor order code has been published. Within the same Stellaris 100-LQFP family, the LM3S9U92 is pin-compatible and adds a second Ethernet MAC, but TI has not designated it as a formal replacement. For a like-for-like drop-in, the surplus channel is the practical source."},{"question":"What are the specifications of LM3S9U90-IQC80-A2?","answer":"It includes Ethernet, two CAN 2.0B, USB OTG, multiple serial interfaces, a 16-channel 12-bit ADC, and motor-control peripherals."},{"question":"Are there any pin-compatible alternatives to LM3S9U90?","answer":"The LM3S9U92 is pin-compatible in the same 100-LQFP package and shares the same base part number. It adds a second Ethernet MAC. No official cross-reference is published, but the family shares the same footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9U90-IQC80-A2","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-IQC80-A2 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}}