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Product Detailed Parameters
- Description：IC MCU 8/16BIT 64KB FLASH 44VQFN
- Series：AVR® XMEGA® D4
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：AVR
- Core Size：8/16-Bit
- Speed：32MHz
- Connectivity：I2C, IrDA, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, 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
- 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 ATXMEGA64D4-MH is an 8/16-bit microcontroller based on the AVR XMEGA D4 architecture, manufactured by Microchip Technology. It features 64 KB of in-system self-programmable flash memory, 2 KB of EEPROM, and 4 KB of 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 is housed in a 44-pad VQFN package with 34 programmable I/O pins.
Feature Summary
- Supports high-performance execution through single-cycle RISC architecture with hardware multiplier
- Includes four-channel event system for peripheral-to-peripheral signaling without CPU intervention
- Features twelve-channel 12-bit ADC with optional differential input and programmable gain
- Provides multiple low-power sleep modes including power-down and extended standby
Applications
- Industrial control systems
- Building and climate control applications
- Utility metering devices
- Factory automation equipment
Procurement Notes
Verify the specific ordering code ATXMEGA64D4-MH against official Microchip documentation to ensure correct package type and temperature rating. Confirm that the VQFN-44 package variant matches your PCB footprint requirements. Check for any recent production change notices regarding assembly or packaging updates before finalizing procurement.
Selection Notes
Select this component when a balance of moderate program memory size and rich peripheral set is required. The 64 KB flash capacity supports complex firmware while maintaining lower power consumption compared to larger memory variants. Ensure the design utilizes the 1.6 V to 3.6 V operating range effectively for battery-powered applications.
Part Context
This part belongs to the AVR XMEGA D4 family, which emphasizes picoPower technology for consistent low-power characteristics across different memory sizes. The D4 series integrates advanced peripherals such as CRC generators and high-resolution timers, targeting applications requiring precise timing and data integrity checks.
Replacement Considerations
ATXMEGA64D4-AU
FAQ
What programming interface does the ATXMEGA64D4-MH use?
The device uses the Program and Debug Interface (PDI), a fast two-pin interface for programming and debugging.
Does the ATXMEGA64D4-MH support capacitive touch sensing?
Yes, the device supports QTouch library integration for implementing capacitive touch buttons, sliders, and wheels.
