4 2013-02-13 www.fritzing.org Atmel 32-pin 8-bit Microcontroller with 8/16/32K Bystes of ISP Flash and USB Controller. ATmega8U2, ATmega16U2, and ATmega32U2 ATMEGA8U2 ATMEGA8U2 TQFP32-08 AU tqfp Microcontroller false atmega8 tqfp32-au 8mm AVCC

D+

D-

GND

PB0

PB1(SCK)

PB2(MOSI)

PB3(MISO)

PB4

PB5

PB6

PB7

PC2

PC4

PC5

PC6

PC7

PD0

PD1

PD2(RX)

PD3(TX)

PD4

PD5

PD6(RTS)

PD7(CTS)

RESET_PC1

UCAP

UGND

UVCC

VCC

XTAL1

XTAL2_PC0