{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S5G31-IQC80-A2T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S5G31-IQC80-A2T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S5G31-IQC80-A2T","factsUrl":"https://icboms.com/api/mcp/products/LM3S5G31-IQC80-A2T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris LM3S5G31, ARM Cortex-M3 single-core at 80MHz, 384KB FLASH / 64KB RAM, 67 GPIO, CANbus/I²C/SPI/UART interfaces, 3.3V supply, 100-LQFP, -40°C to 85°C, Tape & Reel.","salesMarkdown":"## 80 MHz Cortex-M3 for control and connectivity The Texas Instruments LM3S5G31-IQC80-A2T is a Stellaris-series ARM Cortex-M3 MCU clocked at 80 MHz, with 384 KB of Flash and 64 KB of RAM on a 32-bit single-core architecture. The 16-channel 12-bit ADC handles analog front-end tasks without an external converter. Supply range is 3.0 V to 3.6 V, and the part is rated for -40°C to 85°C operation — suitable for factory floor and outdoor telecom enclosures. ## Obsolete — sourcing reality for this EOL MCU ## Memory and peripheral headroom for embedded control With 384 KB of Flash and 64 KB of RAM, this MCU can host a moderate embedded control application with a real-time OS, communications stack (e.g., CANopen or Modbus over UART), and local data logging. The 67 GPIOs and EBI/EMI allow parallel connection to external memory or a display controller without bit-banging. The 16-channel 12-bit ADC samples at rates adequate for current sensing in motor drives or analog input multiplexing in a PLC slice. ## Package and mounting — 100-LQFP footprint Housed in a 100-LQFP package (14x14 mm body), the LM3S5G31-IQC80-A2T is a surface-mount part intended for reflow assembly. The pitch requires careful PCB layout for the EBI/.","metaTitle":"TI LM3S5G31-IQC80-A2T ARM Cortex-M3 MCU, 80MHz","metaDescription":"Texas Instruments Stellaris LM3S5G31 ARM Cortex-M3 MCU, 80MHz, 384KB Flash, 64KB RAM, CANbus, 100-LQFP, -40 to 85°C. 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":"Tape & Reel (TR)","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-A2T/alternatives.json"},"ai":{"faq":[{"question":"What is LM3S5G31-IQC80-A2T's listed speed?","answer":"The core runs at 80 MHz, which is the maximum clock for this ARM Cortex-M3 device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S5G31-IQC80-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/LM3S5G31-IQC80-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}}