ATMEGA8U2_14 Datasheet, PDF (188/310 Pages) ATMEL Corporation – 125 Powerful Instructions – Most Single Clock Cycle Execution

ATmega8U2/16U2/32U2
Figure 20-6. Typical Self powered application with 3.0V to 3.6 I/O⁽¹⁾
1µF
VBUS
UDP
UDM
UVSS
UID
Rs=22
Rs=22
UVCC
UCAP
AVCC
VCC
VBUS
D+
D-
UGND
UID
XTAL1
XTAL2
GND
GND
External 3.0V - 3.6V
Power Supply
Note: 1. The internal 3.3V regulator is bypassed. Disable the regulator to avoid additional power con-
sumption. See the “REGCR – Regulator Control Register” on page 196 for details.
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