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Product Detailed Parameters
- Description：IC MCU 8/16BIT 384KB FLASH 64QFN
- Series：AVR® XMEGA® D3
- 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
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：50
- Program Memory Size：384KB (384K x 8)
- Program Memory Type：FLASH
- EEPROM Size：4K x 8
- RAM Size：32K x 8
- Voltage - Supply (Vcc/Vdd)：1.6V ~ 3.6V
- Data Converters：A/D 16x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：64-QFN (9x9)
- Package / Case：64-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The ATXMEGA384D3-MHR is an 8-bit microcontroller from the AVR XMEGA D3 series, manufactured by Microchip Technology. It features a 32 MHz maximum clock frequency and operates within a supply voltage range of 1.6 V to 3.6 V. The device includes 384 kB of in-system self-programmable Flash memory, 32 kB of SRAM, and 4 kB of EEPROM. It provides 50 I/O pins and integrates a 12-bit ADC with 16 channels. The component supports I2C, SPI, and USART interfaces and is housed in a VQFN-64 package.
Feature Summary
- Integrates picoPower technology for low-power operation with fast wake-up capabilities
- Includes a DMA controller and event system to offload data transfer from the CPU
- Features a Full-Speed USB device interface capable of operation from an internal oscillator
Applications
- Thermostats with display
- Building and climate control systems
- Utility meters with RF and ZigBee connectivity
Procurement Notes
Verify the specific suffix against official documentation to confirm package type and temperature rating. Confirm RoHS compliance status through manufacturer datasheets. Ensure ESD handling protocols are followed during assembly due to humidity sensitivity classification. Cross-reference pinouts with the latest electrical specifications to prevent integration errors.
Selection Notes
Select this model when high code capacity is required alongside low-power constraints. The D3 series offers enhanced peripheral flexibility compared to older generations. Evaluate the 384 kB Flash size against application software requirements. Consider the VQFN-64 package for space-constrained PCB layouts requiring surface mount installation.
Part Context
This component belongs to the AVR XMEGA D3 family, designed for applications demanding large memory sizes without compromising battery life. The family utilizes picoPower technology to maintain consistent low-power characteristics across varying memory capacities. It targets industries requiring efficient power management and robust peripheral integration.
Replacement Considerations
Consult official substitution guides for compatible parts within the XMEGA D3 series. Verify pin compatibility and memory sizes before replacing. No direct substitute part numbers are confirmed in public documentation.
