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Product Detailed Parameters
- Description：IC MCU 8/16BIT 64KB FLASH 44VQFN
- Series：AVR® XMEGA® A4U
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：34
- 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 12x12b; D/A 2x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：44-VQFN (7x7)
- Package / Case：44-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The ATXMEGA64A4U-MHR is an 8/16-bit microcontroller from the AVR XMEGA A4U family, manufactured by Microchip Technology. It features a 64 KB in-system self-programmable flash memory, 2 KB EEPROM, and 4 KB internal SRAM. The device operates within a supply voltage range of 1.6 V to 3.6 V and supports clock frequencies up to 32 MHz when powered at 2.7 V or higher. It utilizes a 44-lead Very Thin Quad Flat No-Lead (VQFN) package.
Feature Summary
- High-performance AVR CPU executing instructions in a single clock cycle for optimized power consumption versus processing speed.
- Integrated four-channel DMA controller and eight-channel event system for efficient data transfer without CPU intervention.
- Includes one USB 2.0 full-speed device interface compliant with standard specifications.
- Features AES and DES cryptographic engines alongside CRC generators for secure data handling.
Applications
- Industrial control systems
- Factory automation
- USB connectivity devices
Procurement Notes
Verify the specific ordering suffix 'MHR' corresponds to the tape and reel packaging format as defined in the official datasheet. Confirm that the component meets RoHS compliance standards and halide-free requirements before finalizing procurement orders.
Selection Notes
Select this component for applications requiring high throughput with low power consumption. Ensure the design accommodates the 1.6 V to 3.6 V operating voltage range. Consider the 44-lead VQFN package dimensions for PCB layout constraints.
Part Context
This part belongs to the AVR XMEGA A4U series, which provides enhanced RISC architecture capabilities. The series includes variants with different memory sizes and packages, offering flexibility for various embedded system designs while maintaining compatibility with common development tools.
Replacement Considerations
Consult the official datasheet for alternative part numbers within the same family that share identical pinouts and functional specifications. Verify package compatibility and electrical characteristics before substituting components.
