{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5D51-IQC80-A2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5D51-IQC80-A2","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5D51-IQC80-A2","factsUrl":"https://icboms.com/api/mcp/products/LM3S5D51-IQC80-A2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 5000 series LM3S5D51-IQC80-A2, 32-bit single-core MCU, 80 MHz, 512 KB Flash, 96 KB RAM, 16x12-bit ADC, 67 I/O, 100-LQFP, -40°C to 85°C.","salesMarkdown":"The LM3S5D51-IQC80-A2 is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris 5000 series, clocked at 80 MHz with 512 KB Flash and 96 KB RAM. It includes a 16-channel 12-bit ADC, USB OTG, CAN, and multiple serial interfaces. The 100-pin LQFP package exposes 67 GPIOs. The Cortex-M3 core runs at 80 MHz. The 512 KB Flash and 96 KB RAM support a single motor axis with field-oriented control plus a Modbus TCP stack. Texas Instruments has marked the LM3S5D51-IQC80-A2 as obsolete. No official successor part number is listed. For this order code, the supply channel is the independent surplus and broker market. We source and quote this part to order against an RFQ. ## Peripheral set and deployment context Peripherals include brown-out detect/reset, DMA, I²S, POR, PWM, and WDT. Connectivity covers CAN, I²C, IrDA, LIN, Microwire, QEI, SPI, SSI, UART/USART, and USB OTG.","metaTitle":"LM3S5D51-IQC80-A2 Stellaris ARM Cortex-M3 MCU, 80 MHz, 512 KB Flash","metaDescription":"LM3S5D51-IQC80-A2 is an obsolete Stellaris ARM Cortex-M3 MCU with 80 MHz core, 512 KB Flash, 96 KB RAM, 16x12-bit ADC. Sourced to order against RFQ through independent distribution","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":"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, 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":"LM3S5D51","Program Memory Size":"512KB (512K 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":"https://cdn.icboms.com/1b9a7c290cdcfa050d2e8b2a487b6b80.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5D51-IQC80-A2/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for LM3S5D51-IQC80-A2?","answer":"No official replacement part number is listed in the lifecycle record. For a new design, consider the current Stellaris or Tiva C Series from TI, which offer Cortex-M4 cores and similar peripheral sets. For an existing board, a pin-compatible alternative within the same family may exist — verify the footprint and memory map before substituting."},{"question":"What is LM3S5D51-IQC80-A2's listed speed?","answer":"The core is rated at 80 MHz, which delivers about 100 DMIPS on the Cortex-M3 pipeline."},{"question":"What is the pinout of LM3S5D51?","answer":"The LM3S5D51-IQC80-A2 is packaged in a 100-pin LQFP (14x14 mm). The pinout is documented in the Texas Instruments datasheet for the Stellaris LM3S5D51. We can provide the datasheet upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5D51-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/LM3S5D51-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}}