{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1D21-IQC80-A1T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1D21-IQC80-A1T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1D21-IQC80-A1T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1D21-IQC80-A1T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series 32-bit MCU, LM3S1D21-IQC80-A1T, 80MHz, 512KB Flash, 96K x 8 RAM, 67 I/O, 100-LQFP, -40°C to 85°C, Tape & Reel.","salesMarkdown":"The Texas Instruments LM3S1D21-IQC80-A1T is a 32-bit ARM Cortex-M3 MCU from the Stellaris series, running at 80 MHz. It packs 512 KB of Flash program memory and 96K x 8 of RAM, with 67 general-purpose I/O lines. The part is housed in a 100-LQFP package (14x14 mm) and rated for industrial temperature from -40°C to 85°C. Typical applications include industrial control, motor drives, building automation, and sensor hubs where a mid-range Cortex-M3 core with rich connectivity is needed. The 1.235 V to 1.365 V core supply requires a dedicated rail. This part is obsolete per the manufacturer. No direct pin-compatible replacement is listed in the evidence.","metaTitle":"TI LM3S1D21-IQC80-A1T Stellaris ARM Cortex-M3 MCU, 80MHz, 512KB Flash","metaDescription":"LM3S1D21-IQC80-A1T Stellaris ARM Cortex-M3 MCU, 80MHz core, 512KB Flash, 96K RAM, 67 I/O, -40 to 85°C. Obsolete – sourced to order, quoted on request.","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 1000","Package":"Tape & Reel (TR)","RAM Size":"96K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"EBI/EMI, I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART","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 8x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1D21","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)":"1.235V ~ 1.365V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.8700","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1D21-IQC80-A1T/alternatives.json"},"ai":{"faq":[{"question":"What is LM3S1D21-IQC80-A1T's listed speed?","answer":"The core runs at 80 MHz."},{"question":"What is LM3S1D21-IQC80-A1T's listed series?","answer":"It belongs to the Stellaris ARM Cortex-M3S 1000 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1D21-IQC80-A1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1D21-IQC80-A1T 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}}