{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5K36-IQR80-C5T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5K36-IQR80-C5T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5K36-IQR80-C5T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5K36-IQR80-C5T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 5000 series LM3S5K36-IQR80-C5T, 32-Bit Single-Core MCU, 80MHz, 128KB Flash, 24K x 8 RAM, CANbus/I²C/SPI/UART/USB, 33 I/O, 64-LQFP, -40°C~85°C.","salesMarkdown":"## 80 MHz Cortex-M3 with 128 KB Flash — what you get The 8-channel 10-bit ADC and PWM timers suit it for closed-loop control in industrial drives, pump controllers, and building automation gateways. ## Obsolete — last-time-buy reality Any new design should migrate to a current-generation Cortex-M4 or M33 part with a compatible peripheral set; for existing BOM lines, the priority is securing enough units to cover the remaining build window before channel inventory dries up. ## Peripheral fit — USB and CAN on a single chip The USB interface (device/host/OTG) and CAN 2.0B controller on the same die are the standout integration for this class. A single LM3S5K36 can bridge a CAN-based sensor network to a USB host for data logging or firmware updates, saving a separate USB-to-CAN dongle and its associated BOM cost. The 24 KB SRAM is tight for large USB buffers — plan the endpoint descriptor allocation carefully if you are running a composite device. ## Supply rail — 1.08 V to 1.32 V core The core logic runs from a 1.08 V to 1.32 V supply, which is narrower than the typical 3.3 V-only MCU. The board needs a dedicated 1.2 V regulator with tight tolerance (±2 % or better) — a standard 1.2 V LDO with 1 % initial accuracy works, but watch the dropout at low input voltage. The I/O ring is powered separately (VDDIO, typically 3.3 V), so level translation between the core and peripherals is handled internally.","metaTitle":"LM3S5K36-IQR80-C5T Stellaris Cortex-M3 MCU, 80 MHz","metaDescription":"LM3S5K36-IQR80-C5T is an obsolete Stellaris ARM Cortex-M3 MCU with 80 MHz core, 128 KB Flash, 24 KB RAM, USB & CAN.","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":"24K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"33","Core Processor":"ARM® Cortex®-M3","Package / Case":"64-LQFP","Product Status":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5K36","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.08V ~ 1.32V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/11671dd68ff1b9c954a7f6e13bd75fba.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S5K36-IQR80-C5T/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5K36-IQR80-C5T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5K36-IQR80-C5T 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}}