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Product Detailed Parameters
- Description：IC MCU 8/16BIT 64KB FLASH 64TQFP
- Series：AVR® XMEGA® A3U
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Core Processor：AVR
- Core Size：8/16-Bit
- Speed：32MHz
- Connectivity：I2C, IrDA, SPI, UART/USART, USB
- Peripherals：Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O：50
- Program Memory Size：64KB (32K x 16)
- Program Memory Type：FLASH
- EEPROM Size：2K x 8
- RAM Size：4K x 8
- Voltage - Supply (Vcc/Vdd)：1.6V ~ 3.6V
- Data Converters：A/D 16x12b; D/A 2x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：64-TQFP (14x14)
- Package / Case：64-TQFP
- Grade：-
- Qualification：-
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Overview
The ATXMEGA64A3U-ANR is an 8/16-bit AVR XMEGA microcontroller featuring a 64KB in-system self-programmable flash memory, 2KB EEPROM, and 4KB internal SRAM. It operates at frequencies up to 32MHz with a supply voltage range of 1.6V to 3.6V. The device includes a four-channel DMA controller, eight-channel event system, seven 16-bit timer/counters, one USB device interface, seven USARTs, two TWI interfaces, three SPIs, AES/DES crypto engine, two 16-channel 12-bit ADCs, one 2-channel 12-bit DAC, and five sleep modes.
Feature Summary
- Integrates a high-performance AVR RISC CPU with hardware multiplier for efficient arithmetic operations.
- Includes a dedicated USB 2.0 full-speed device interface compliant with standard protocols.
- Features advanced analog peripherals including dual 12-bit ADCs and a 12-bit DAC.
- Supports capacitive touch sensing via the QTouch library integration.
Applications
- Industrial control systems
- Factory automation equipment
- Medical devices
- USB connectivity applications
Procurement Notes
Verify the specific ordering code matches the required package type and temperature rating. Confirm that the 'R' suffix indicates tape and reel packaging as specified in the datasheet. Ensure compatibility with existing programming interfaces such as PDI or JTAG before finalizing procurement.
Selection Notes
Select this component when a balance of processing speed and low power consumption is required. The integrated USB interface and extensive peripheral set make it suitable for complex embedded designs. Consider the operating temperature range and available I/O pins relative to the application requirements.
Part Context
This part belongs to the AVR XMEGA A3U family, designed for high performance and low power applications. It utilizes Atmel's high-density nonvolatile memory technology and supports read-while-write capabilities. The family offers flexible configuration options through various lock bits and fuse settings.
Replacement Considerations
The ATXMEGA64A3U-AUR is a direct alternative within the same series offering identical specifications but potentially different packaging or revision details. Verify pinout compatibility and software register mapping before substituting.
