{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5C36-IQR80-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5C36-IQR80-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5C36-IQR80-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5C36-IQR80-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series 32-bit MCU, LM3S5C36-IQR80-A2T, 80 MHz, 512 KB Flash, 64 KB RAM, CAN, USB, 33 I/O, 64-LQFP, -40 to 85°C.","salesMarkdown":"The 80 MHz core runs a PID loop at several kHz alongside CAN message handling and USB device stack. ## 512 KB Flash and 64 KB RAM — sizing the firmware The 512 KB Flash can hold a full bootloader, RTOS kernel, and a moderate application with CANopen or USB CDC class drivers. The 64 KB RAM is adequate for a few kilobytes of stack and data buffers; if your design requires large frame buffers or extensive data logging, you will need external SRAM or a part with larger on-chip RAM. Texas Instruments has marked the LM3S5C36-IQR80-A2T as obsolete. No official successor part number is listed. For new designs, look at TI's current Tiva C Series or other Cortex-M4 parts.","metaTitle":"Texas Instruments LM3S5C36-IQR80-A2T Stellaris ARM Cortex-M3 MCU, 80 MHz","metaDescription":"LM3S5C36-IQR80-A2T is an obsolete 32-bit ARM Cortex-M3 MCU from TI's Stellaris series. 80 MHz, 512 KB Flash, 64 KB RAM, CAN and USB. 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":"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":"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 8x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S5C36","Program Memory Size":"512KB (512K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-LQFP (10x10)","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/LM3S5C36-IQR80-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is the best replacement for LM3S5C36-IQR80-A2T?","answer":"Texas Instruments has not published an official direct replacement for this part. For new designs, consider the Tiva C Series (TM4C123 or TM4C129) which offer Cortex-M4 cores with similar peripheral sets. Verify pin compatibility and software migration effort before committing."},{"question":"Does LM3S5C36-IQR80-A2T have CAN bus and USB?","answer":"Yes, this MCU includes a CAN 2.0B controller and a USB interface (device/host/OTG), along with UART, SPI, I2C, SSI, and IrDA."},{"question":"What is LM3S5C36-IQR80-A2T's listed speed?","answer":"The core runs at 80 MHz."},{"question":"Where can I buy LM3S5C36-IQR80-A2T?","answer":"This obsolete part is available through independent distribution. Submit an RFQ for current availability and pricing — it is sourced and quoted to order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5C36-IQR80-A2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S5C36-IQR80-A2T 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}}