{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9B90-IQC80-C3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9B90-IQC80-C3","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9B90-IQC80-C3","factsUrl":"https://icboms.com/api/mcp/products/LM3S9B90-IQC80-C3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 9000 series LM3S9B90-IQC80-C3, 32-Bit Single-Core MCU, 80MHz, 256KB FLASH, 96K x 8 RAM, 100-LQFP, -40°C~85°C.","salesMarkdown":"The 100-pin LQFP package brings out 60 GPIOs and a 16-channel 10-bit ADC. ## Ethernet, CAN, and USB OTG — the connectivity that defines this part The Ethernet MAC with integrated PHY is the headline differentiator versus lower-tier Stellaris parts. Combined with dual CAN controllers and USB OTG, this MCU was designed for industrial gateway, protocol converter, and remote terminal unit (RTU) roles where multiple fieldbus and network stacks must coexist. The 80 MHz Cortex-M3 core has enough headroom to run a lightweight TCP/IP stack alongside a CANopen or Modbus application without an external network coprocessor. 256 KB of program Flash is adequate for a full Ethernet stack plus application code, but leaves limited room for over-the-air update staging — plan for external serial Flash if you need dual-image OTA. The 96 KB SRAM supports moderate-size packet buffers (several Ethernet frames) and a real-time OS heap. ## Obsolete — sourcing reality and replacement planning Buyers should verify date code and condition at quote time. For new designs, a pin-compatible replacement within the Stellaris family is not confirmed — a full BOM-level migration to a current TI Cortex-M4 series part is the practical path.","metaTitle":"LM3S9B90-IQC80-C3 Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"LM3S9B90-IQC80-C3 is a 32-bit ARM Cortex-M3 MCU from the Stellaris 9000 series. 80 MHz core, 256 KB Flash, 96 KB RAM, Ethernet + CAN + USB OTG.","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":"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, SPI, SSI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"60","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":"LM3S9B90","Program Memory Size":"256KB (256K 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/cee75a99b07073a78d34478947d5df9d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for LM3S9B90-IQC80-C3?","answer":"No official replacement order code is recorded. The Stellaris family was succeeded by TI's TM4C series (Cortex-M4F), but those parts differ in core architecture, peripheral map, and supply voltage. A full BOM-level redesign is required for migration. For sustainment, source the original part through independent channels."},{"question":"Does LM3S9B90-IQC80-C3 have Ethernet?","answer":"Yes, it includes an Ethernet MAC with integrated PHY, plus dual CAN controllers and USB OTG — making it suitable for industrial gateway and networked control applications."},{"question":"Where can I buy LM3S9B90-IQC80-C3?","answer":"No stock or price figures are published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9B90-IQC80-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/LM3S9B90-IQC80-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}}