Device datasheet for the Atmel ATxmega A3 series, 64-pin members of the AVR XMEGA A family. The 3.19 MB PDF lists pin functions per port, memory sizes for each part, package dimensions, electrical characteristics and silicon errata. Detailed peripheral operation is found in the XMEGA A manual. On the bench it helps locate VCC and GND pins, PDI and JTAG programming signals and crystal connections. Errata differ between die revisions, so check the revision letter on the chip.
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