{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5C51-IBZ80-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5C51-IBZ80-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5C51-IBZ80-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5C51-IBZ80-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series, LM3S5C51-IBZ80-A2T, 32-bit single-core MCU, 80 MHz, 512 KB Flash, 64K x 8 RAM, 67 I/O, CAN, USB OTG, 12-bit ADC, 108-BGA, -40°C to 85°C.","salesMarkdown":"The Texas Instruments LM3S5C51-IBZ80-A2T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 5000 series, clocked at 80 MHz with 512 KB of Flash and 64K x 8 of SRAM. It carries 67 GPIOs, a 16-channel 12-bit ADC, and a connectivity set that includes CAN, USB OTG, UART, SPI, I²C, and IrDA — enough to serve as the main controller in an industrial HMI panel, a motor-drive comms gateway, or a multi-protocol fieldbus node. The 80 MHz Cortex-M3 core gives this part enough headroom for a control loop running at a few kHz alongside a Modbus RTU stack and a local display update. The 64K x 8 SRAM handles a few hundred tags and a moderate packet buffer; if your application needs a large frame buffer or heavy data logging, you will want to move up to a part with more RAM or an external memory interface. ## Connectivity and peripherals at a glance The peripheral set includes CAN, USB OTG, I²C, SPI, SSI, UART, IrDA, Microwire, and QEI. The 16-channel 12-bit ADC covers analog inputs without an external mux.","metaTitle":"LM3S5C51-IBZ80-A2T Stellaris ARM Cortex-M3 MCU, 80 MHz, 512 KB Flash","metaDescription":"Obsolete LM3S5C51-IBZ80-A2T from Texas Instruments. 32-bit ARM Cortex-M3 at 80 MHz, 512 KB Flash, 64K x 8 RAM, industrial temp -40°C to 85°C, 108-BGA. Sourced to order against RFQ.","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":"108-LFBGA","Product Status":"Obsolete","Data Converters":"A/D 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5C51","Program Memory Size":"512KB (512K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"108-BGA (10x10)","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/LM3S5C51-IBZ80-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM3S5C51-IBZ80-A2T?","answer":"No official pin-compatible replacement is listed by Texas Instruments. The Stellaris family included other density and package options, but this exact BGA footprint and memory configuration has no direct factory successor. For a new design, consider current-production Cortex-M3 or Cortex-M4 MCUs from TI or other vendors."},{"question":"What is LM3S5C51-IBZ80-A2T's listed speed?","answer":"The core runs at 80 MHz, which is the maximum clock for this Cortex-M3 device."},{"question":"What series is LM3S5C51-IBZ80-A2T from?","answer":"It belongs to the Stellaris ARM Cortex-M3S 5000 series from Texas Instruments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5C51-IBZ80-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/LM3S5C51-IBZ80-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}}