Part Number : ATXMEGA64D3
Function : 8/16-bit Atmel AVR XMEGA D3 Microcontroller
Maker : Atmel Corporation
Pinouts : 
Description :
1. High-performance, low-power Atmel AVR XMEGA® 8/16-bit Microcontroller
2. Nonvolatile program and data memories
3. 32K - 384KBytes of in-system self-programmable flash
4. 4K - 8KBytes boot section
5. 2K - 4KBytes EEPROM
6. 4K - 16KBytes internal SRAM
7. Peripheral features
8. Four-channel event system
9. Five 16-bit timer/counters
10. Four timer/counters with four output compare or input capture channels
11. One timer/counter with two output compare or input capture channels
12. High resolution extension on two timer/counters
13. Advanced waveform extension (AWeX) on one timer/counter
Datasheet PDF Download : 
Others datasheet of same file :
ATXMEGA128D3-AU, ATXMEGA128D3-AUR, ATXMEGA128D3-MH,
ATXMEGA128D3-MHR, ATXMEGA192D3-AU
