{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5C36-IQR80-A1T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5C36-IQR80-A1T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5C36-IQR80-A1T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5C36-IQR80-A1T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 5000 series LM3S5C36-IQR80-A1T, 32-bit MCU, 80 MHz, 512 KB Flash, 64 KB RAM, CAN, USB, I2C, SPI, UART, 8x12-bit ADC, 64-LQFP, -40 to 85°C.","salesMarkdown":"This part is officially obsolete (EOL). No further factory orders are possible, and the last-time-buy window has closed. If you have an active BOM line that calls out LM3S5C36-IQR80-A1T, the only sourcing path is the independent surplus and broker channel — which is exactly what we cover. Do not assume you can still buy it through standard distribution — you cannot. 80 MHz on a single-cycle Cortex-M3 delivers roughly 80 DMIPS. That is enough for a field-oriented motor control loop with CANopen stack and headroom for a Modbus RTU slave. ## 512 KB Flash / 64 KB RAM — sizing the firmware 512 KB of Flash holds a full application with a real-time OS, a CANopen or USB stack, and a bootloader for field updates. The 64 KB SRAM is tight for large data buffers. The -40 to 85°C rating suits factory-floor, outdoor telecom, and engine-bay-adjacent enclosures. The 64-LQFP (10x10 mm) is a common footprint.","metaTitle":"LM3S5C36-IQR80-A1T ARM Cortex-M3 MCU, 80 MHz, 512 KB Flash","metaDescription":"Obsolete Stellaris ARM Cortex-M3 MCU, 80 MHz, 512 KB Flash, 64 KB RAM, CAN/USB, -40 to 85°C, 64-LQFP. Sourced to order against RFQ through independent distribution.","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-A1T/alternatives.json"},"ai":{"faq":[{"question":"Is LM3S5C36-IQR80-A1T obsolete?","answer":"Yes, the LM3S5C36-IQR80-A1T is officially obsolete (EOL). No further factory orders are accepted. It is available only through independent surplus and broker channels."},{"question":"What is the replacement for LM3S5C36-IQR80-A1T?","answer":"There is no official direct-replacement part listed for the LM3S5C36-IQR80-A1T. The Stellaris family has been discontinued by Texas Instruments. A pin-compatible replacement would need to match the 64-LQFP footprint, 80 MHz Cortex-M3 core, 512 KB Flash, and peripheral set including CAN and USB — but no single part is documented as a drop-in. A design review is required."},{"question":"What are the specifications of LM3S5C36-IQR80-A1T?","answer":"The LM3S5C36-IQR80-A1T is a 32-bit ARM Cortex-M3 MCU running at 80 MHz, with 512 KB Flash, 64 KB RAM, 33 I/O lines, an 8-channel 12-bit ADC, and connectivity including CAN, USB, I2C, SPI, SSI, UART, and IrDA. It comes in a 64-LQFP package and is rated for -40 to 85°C operation."},{"question":"Does LM3S5C36-IQR80-A1T have USB?","answer":"Yes, the LM3S5C36-IQR80-A1T includes USB connectivity as part of its peripheral set."},{"question":"What package is LM3S5C36-IQR80-A1T?","answer":"The LM3S5C36-IQR80-A1T is packaged in a 64-LQFP (10x10 mm) surface-mount package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5C36-IQR80-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/LM3S5C36-IQR80-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}}