{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ATXMEGA256C3-AU","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"ATXMEGA256C3-AU","canonicalUrl":"https://icboms.com/microchip/ATXMEGA256C3-AU","factsUrl":"https://icboms.com/api/mcp/products/ATXMEGA256C3-AU","rawCanonicalId":null},"summary":{"shortDescription":"Microchip AVR® XMEGA® C3 series ATXMEGA256C3-AU, 8/16-bit MCU, 32MHz, 256KB Flash, 16KB RAM, 4KB EEPROM, USB 2.0, 50 I/O, 64-TQFP, -40°C to 85°C.","salesMarkdown":"## 256 KB Flash, 16 KB RAM, 4 KB EEPROM — memory map for a standalone node The Microchip ATXMEGA256C3-AU is an 8/16-bit AVR XMEGA C3-series microcontroller in a 64-TQFP package, built around a 32 MHz AVR core. Fifty general-purpose I/O lines, a 12-bit 16-channel ADC, and a full-speed USB 2.0 peripheral with dedicated DMA channels make it a single-chip fit for data-acquisition and human-interface products. Brown-out detection, power-on reset, and a watchdog timer are integrated, so the BOM can skip external supervisor ICs in most industrial and consumer designs. ## USB plus serial — what the connectivity block drives The USB peripheral with dedicated DMA can sustain HID and CDC virtual-comport data rates without CPU overhead. Alongside USB, the part provides I2C, SPI, and multiple UART/USART channels, plus IrDA support — enough to bridge a legacy RS-232 sensor to a modern USB host in a single chip. The 12-bit ADC with 16 multiplexed channels captures analog sensor inputs directly.","metaTitle":"Microchip ATXMEGA256C3-AU AVR XMEGA MCU, 32MHz, 256KB Flash","metaDescription":"Microchip ATXMEGA256C3-AU 8/16-bit AVR XMEGA MCU with 32MHz core, 256KB Flash, 16KB RAM, 4KB EEPROM, USB, 50 I/O. Industrial temp -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"AVR® XMEGA® C3","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"32MHz","Series":"AVR® XMEGA® C3","Package":"Tray","RAM Size":"16K x 8","Core Size":"8/16-Bit","EEPROM Size":"4K x 8","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"50","Core Processor":"AVR","Package / Case":"64-TQFP","Data Converters":"A/D 16x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"256KB (128K x 16)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"64-TQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.6V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.5","priceTiers":[{"qty":1,"price":"$7.50000","currency":"USD"},{"qty":25,"price":"$6.87000","currency":"USD"},{"qty":100,"price":"$6.24000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/71aeeecf04ca0cd0eef2cccfbfa3f08a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ATXMEGA256C3-AU/alternatives.json"},"ai":{"faq":[{"question":"What is the lead time for ATXMEGA256C3-AU?","answer":"Submit an RFQ for current lead-time and availability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/ATXMEGA256C3-AU","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/ATXMEGA256C3-AU when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}