{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9790-IQC80-B1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9790-IQC80-B1","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9790-IQC80-B1","factsUrl":"https://icboms.com/api/mcp/products/LM3S9790-IQC80-B1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 9000 series MCU, LM3S9790-IQC80-, 32-bit single-core, 80MHz, 128KB Flash, 64K x 8 RAM, 60 I/O, 100-LQFP, -40°C to 85°C.","salesMarkdown":"The LM3S9790-IQC80-B1: The LM3S9790-IQC80-: The LM3S9790-IQC80- is a Texas Instruments Stellaris ARM Cortex-M3 microcontroller from the 9000 series, built around a 32-bit single-core processor running at 80 MHz. ## Obsolete — plan your BOM around it That means new designs should not target this MCU; existing BOM lines must source through the independent surplus and broker channel. The 128 KB Flash / 64 KB RAM and the rich peripheral set (CAN, Ethernet, USB OTG) make it a candidate for last-time-buy stocking if your production line still needs it. The 80 MHz core clock on the ARM Cortex-M3 gives you single-cycle multiply and hardware divide, plus a deterministic interrupt controller. For a control loop that polls CAN messages, updates an Ethernet stack, and drives PWM outputs, this speed keeps the firmware responsive without needing a cache or prefetch buffer. The 60 available I/O pins in the 100-LQFP package leave headroom for local sensors, displays, and memory-mapped peripherals through the EBI/EMI interface. ## Package and footprint — 100-LQFP (14x14 mm) The LM3S9790-IQC80- comes in a 100-LQFP package with a 14x14 mm body, surface-mount only. The 60 I/O are distributed around the quad flat pack; standard 0.5 mm pitch applies.","metaTitle":"LM3S9790-IQC80-B1 Stellaris ARM Cortex-M3 MCU, 80MHz","metaDescription":"LM3S9790-IQC80-B1 Stellaris ARM Cortex-M3 MCU, 80MHz, 128KB Flash, 64KB RAM, CAN/Ethernet/USB. Industrial temp.","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":"100-LQFP","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":"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/57393517221c83ebf3150b260ab088b1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LM3S9790-IQC80- obsolete?","answer":"Yes, the LM3S9790-IQC80- is listed as Obsolete. Texas Instruments has discontinued production, and no official replacement part number is provided in the lifecycle record."},{"question":"What is the replacement for LM3S9790-IQC80-?","answer":"The Stellaris family has been superseded by newer ARM Cortex-M families from TI (such as the TM4C series), but pin-compatibility is not guaranteed. For a drop-in replacement, you would need to source the original LM3S9790-IQC80- through the surplus channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9790-IQC80-B1","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-IQC80-B1 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}}