atmega32u4-16mu ATMEL Corporation, atmega32u4-16mu Datasheet - Page 274

• Manufacturer Part Number: atmega32u4-16mu
• Description: Atmega32u4 8-bit Avr Microcontroller With 32k Bytes Of Isp Flash And Usb Controller
• Manufacturer: ATMEL Corporation

22.3.2
274
ATmega32U4
Self Powered device
Figure 22-4. Typical Bus powered application with 3V I/O
Figure 22-5. Typical Self powered application with 3.4V to 5.5V I/O
VBUS
UVSS
UDP
VBUS
UVSS
UDM
UDP
UID
UDM
UID
Rs=22
Rs=22
Rs=22
Rs=22
1µF
1µF
UCAP
VBUS
UGND
D+
D-
UID
UVSS
UCAP
VBUS
UGND
D+
D-
UID
UVCC
XTAL1
UVCC
XTAL1
XTAL2
3V Regulator
External
XTAL2
AVCC
AVCC
GND
GND
VCC
GND
VCC
GND
External 3.4V - 5.5V
Power Supply
7766A–AVR–03/08