{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1G21-IBZ80-A1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1G21-IBZ80-A1","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1G21-IBZ80-A1","factsUrl":"https://icboms.com/api/mcp/products/LM3S1G21-IBZ80-A1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 microcontroller, LM3S1G21-IBZ80-A1, 80 MHz, 384 KB flash, 64 KB RAM, 67 I/O, 108-LFBGA, tray.","salesMarkdown":"Texas Instruments has marked the LM3S1G21-IBZ80-A1 as obsolete. For a BOM line already qualified to this Stellaris ARM Cortex-M3S 1000 series device, the last-time-buy window has closed — any available inventory is what remains in the distribution pipeline or on the surplus market. ## 80 MHz Cortex-M3 — throughput and peripheral fit The 80 MHz ARM Cortex-M3 core delivers the processing headroom for control-loop, protocol-stack, and moderate data-processing tasks. The 384 KB on-chip flash (384K x 8) and 64 KB SRAM (64K x 8) provide a comfortable memory budget for a real-time operating system, application code, and data buffers without external memory in many designs. The 32-bit single-core architecture, combined with the integrated DMA controller and the peripheral set — which includes EBI/EMI, I²C, SPI, SSI, UART/USART, IrDA, LINbus, and Microwire — makes this part suitable for industrial control, human-machine interfaces, and sensor-gateway applications that require both serial connectivity and parallel bus access to external memory or FPGAs.","metaTitle":"LM3S1G21-IBZ80-A1 Texas Instruments ARM Cortex-M3, 80 MHz","metaDescription":"Texas Instruments LM3S1G21-IBZ80-A1 Stellaris ARM Cortex-M3 MCU, 80 MHz, 384 KB flash, 64 KB RAM, 108-BGA.","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":"Tray","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":"What is the LM3S1G21-IBZ80-A1's core speed and memory configuration?","answer":"The ARM Cortex-M3 core runs at 80 MHz. On-chip memory consists of 384 KB of flash and 64 KB of SRAM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1G21-IBZ80-A1","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-A1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:47:56.442Z","lastPublished":"2026-07-21T02:47:56.442Z","indexable":true}}