{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5G51-IQC80-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5G51-IQC80-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5G51-IQC80-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5G51-IQC80-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series, LM3S5G51-IQC80-A2T, 32-bit single-core MCU, 80 MHz, 384 KB Flash, 64 KB SRAM, 67 GPIO, CANbus, USB OTG, 3.3V supply, 100-LQFP, -40 to 85°C.","salesMarkdown":"## 80 MHz Cortex-M3 — what the core speed buys you The LM3S5G51-IQC80-A2T runs a single ARM Cortex-M3 core at 80 MHz. That clock rate puts it in the mid-range band for this architecture — enough to handle a CANopen stack, a USB OTG host driver, and a real-time control loop without saturating the bus. The 384 KB Flash and 64 KB SRAM are paired for firmware that needs a moderate footprint: a full protocol stack plus application code fits, but leave headroom for data buffers if you are logging sensor streams over USB. ## CANbus and USB OTG — connectivity that defines the board For a panel controller or a gateway module, CAN and USB OTG are the two that decide the BOM — CAN handles the fieldbus side, USB OTG lets the board act as a host for a flash drive or a device for a PC. ## Obsolete — sourcing reality for this order code ## Package and temperature grade — board-fit constraints The 100-LQFP (14x14 mm) is a common footprint. The -40 to 85°C range covers industrial enclosures.","metaTitle":"Texas Instruments LM3S5G51-IQC80-A2T ARM Cortex-M3 MCU, 80 MHz, 384 KB Flash, 64","metaDescription":"LM3S5G51-IQC80-A2T is obsolete. Stellaris ARM Cortex-M3 MCU, 80 MHz, 384 KB Flash, 64 KB SRAM, CANbus, USB OTG, -40 to 85°C. Sourced to order against an RFQ through independent dis","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 5000","Package":"Tape & Reel (TR)","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, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"67","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Obsolete","Data Converters":"A/D 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5G51","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)":"3V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5G51-IQC80-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for LM3S5G51-IQC80-A2T?","answer":"TI has not published a direct pin-compatible replacement under the Stellaris brand. The Tiva C series is the architectural successor, but verify pinout and peripheral compatibility before committing a board spin."},{"question":"Does LM3S5G51-IQC80-A2T support CANbus?","answer":"Yes, the connectivity set includes CANbus alongside USB OTG, I²C, SPI, UART/USART, and several other serial interfaces."},{"question":"What is the operating temperature range of LM3S5G51?","answer":"The device is rated for -40°C to 85°C (TA), which covers industrial and outdoor telecom applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5G51-IQC80-A2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5G51-IQC80-A2T 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}}