Datasheet

188

7799D–AVR–11/10

ATmega8U2/16U2/32U2

Figure 20-6. Typical Self powered application with 3.0V to 3.6 I/O

(1)

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.

1µF

External 3.0V - 3.6V

Power Supply

UDP

UDM

VBUS

UVSS

UID

UCAP

D-

D+

VBUS

UID

UGND

UVCC AVCC

VCC

XTAL1 XTAL2 GND GND

Rs=22