{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5G31-IQC80-A1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5G31-IQC80-A1","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5G31-IQC80-A1","factsUrl":"https://icboms.com/api/mcp/products/LM3S5G31-IQC80-A1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series microcontroller, LM3S5G31-IQC80-A1, 80MHz, 384KB Flash, 64KB RAM, 100-LQFP, -40°C to 85°C.","salesMarkdown":"Texas Instruments has marked the LM3S5G31-IQC80-A1 as Obsolete. No official successor is recorded, so the only path to fill a BOM line is through independent distribution — surplus, new-old-stock, or broker channels. Availability is lot-specific and confirmed at quote time. ## 80MHz Cortex-M3 with 384KB Flash The LM3S5G31-IQC80-A1 is a 32-bit single-core ARM Cortex-M3 MCU running at 80 MHz. It belongs to the Stellaris ARM Cortex-M3S 5000 series. On-chip memory includes 384 KB of Flash and 64 KB of SRAM — enough for a moderate control stack with room for a real-time OS and application buffers. The peripheral set covers brown-out detect, POR, DMA, I²S, PWM, and a watchdog timer. Connectivity spans CAN, EBI/EMI, I²C, IrDA, LIN, Microwire, QEI, SPI, SSI, and UART/USART — this part was designed to bridge multiple fieldbuses in a single control node. ## Industrial temperature grade and 100-LQFP The 100-LQFP package (14x14 mm) is a standard fine-pitch surface-mount footprint — reworkable with a hot-air station, but the 0.5 mm pitch demands careful solder-paste stencil design to avoid bridging.","metaTitle":"Texas Instruments LM3S5G31-IQC80-A1, 80MHz Cortex-M3 MCU","metaDescription":"Texas Instruments LM3S5G31-IQC80-A1 Stellaris ARM Cortex-M3 MCU, 80MHz, 384KB Flash, 64KB RAM, 100-LQFP. Obsolete — 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":"Tray","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, EBI/EMI, I²C, IrDA, LINbus, Microwire, QEI, 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 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5G31","Program Memory Size":"384KB (384K 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":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5G31-IQC80-A1/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5G31-IQC80-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/LM3S5G31-IQC80-A1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:55:18.880Z","lastPublished":"2026-07-21T02:55:18.880Z","indexable":true}}