Datasheet

244
7593L–AVR–09/12
AT90USB64/128
Figure 22-6. Typical self powered application with 3.0V to 3.6 I/O.
22.3.2 Host / OTG mode
Figure 22-7. Host/OTG application with 3.0V to 3.6 I/O.
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
Rs = 22
UDM
UDP
VBUS
UVSS
UID
D-
D+
VBUS
UID
UGND
1µF
External 3.0V - 3.4V
power supply
UCAP
UVCC AVCC VCC
XTAL1 XTAL2 GND GND
UVCON
5V DC/DC
generator
5V
Rs = 22
Rs = 22