{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5D91-IQC80-A1T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5D91-IQC80-A1T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5D91-IQC80-A1T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5D91-IQC80-A1T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 5000 series LM3S5D91-IQC80-A1T, 32-bit MCU, 80 MHz, 512KB Flash, 96K x 8 RAM, CAN, USB OTG, 100-LQFP, -40°C to 85°C.","salesMarkdown":"## Stellaris Cortex-M3 with 80 MHz core and 512 KB Flash On-chip data conversion comes from a 16-channel, 12-bit ADC. ## Peripheral set and design-fit note Brown-out reset and power-on reset are integrated, reducing external supervisor IC count. The 12-bit ADC with 16 channels covers multi-sensor analog front ends without an external mux. For designs that need the full 80 MHz throughput, the Flash wait state must be configured correctly — the default zero-wait setting will hard-fault if the core clock exceeds the Flash access limit without a wait state inserted.","metaTitle":"LM3S5D91-IQC80-A1T Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"Texas Instruments LM3S5D91-IQC80-A1T Stellaris ARM Cortex-M3S 5000 MCU. 80 MHz, 512 KB Flash, 96 KB RAM, 72 I/O, CAN/USB OTG, -40°C to 85°C.","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":"Tape & Reel (TR)","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, EBI/EMI, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"72","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":"LM3S5D91","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":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5D91-IQC80-A1T/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S5D91-IQC80-A1T obsolete and discontinued?","answer":"Yes, the LM3S5D91-IQC80-A1T is listed as Obsolete. Texas Instruments has discontinued production, and no direct replacement part number has been designated."},{"question":"What is the replacement for LM3S5D91-IQC80-A1T?","answer":"For a pin-compatible alternative within the Stellaris family, review the LM3S series parametric table — a same-package, same-core variant with equivalent Flash and RAM may serve as a drop-in, but verify the peripheral set and supply voltage range against your design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5D91-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/LM3S5D91-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}}