{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1G21-IBZ80-A1T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1G21-IBZ80-A1T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1G21-IBZ80-A1T","factsUrl":"https://icboms.com/api/mcp/products/LM3S1G21-IBZ80-A1T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series microcontroller, LM3S1G21-IBZ80-A1T, 80MHz, 384KB flash, 64KB RAM, 67 I/O, 108-LFBGA, -40 to 85°C.","salesMarkdown":"## 80 MHz Cortex-M3 with 384 KB flash — what it means for the BOM The LM3S1G21-IBZ80-A1T: That flash footprint handles a full control stack plus application logic without external memory — think motor-drive firmware with sensorless FOC or a multi-axis motion controller. The 67 GPIOs and rich peripheral set — including EBI/EMI, I²C, SPI, UART, and LIN — let it interface directly with industrial encoders, HMI panels, and fieldbus transceivers without a glue CPLD. ## Package and board-fit for field rework Housed in a 108-ball BGA (10x10 mm), the part demands a controlled reflow profile and X-ray inspection after assembly — not a hand-solder swap in the field. Industrial temperature range from -40°C to 85°C means it survives cold-start in an unheated cabinet and the heat rise inside a sealed enclosure. ## Lifecycle reality — obsolete, sourced to order Texas Instruments lists the LM3S1G21-IBZ80-A1T as obsolete. For BOM lines that still call this exact order code, supply runs through independent distribution — quantities are lot-specific and confirmed at RFQ.","metaTitle":"LM3S1G21-IBZ80-A1T ARM Cortex-M3 MCU, 80MHz, 384KB Flash","metaDescription":"Texas Instruments LM3S1G21-IBZ80-A1T Stellaris ARM Cortex-M3 MCU, 80MHz, 384KB flash, 64KB RAM, 67 I/O, -40 to 85°C. Obsolete — sourced to order.","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":"64K 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":"108-LFBGA","Product Status":"Obsolete","Data Converters":"A/D 8x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1G21","Program Memory Size":"384KB (384K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"108-BGA (10x10)","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/acebf1361b416656bd85e8d37228c41b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for LM3S1G21-IBZ80-A1T?","answer":"Submit an RFQ through this listing. We source the part through independent channels and confirm current pricing and available quantities at quote time. No stock-holding claim is made here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1G21-IBZ80-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/LM3S1G21-IBZ80-A1T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:47:53.120Z","lastPublished":"2026-07-21T02:47:53.120Z","indexable":true}}