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AT90USB646 Datasheet(PDF) 243 Page - ATMEL Corporation

Part # AT90USB646
Description  8-bit Atmel Microcontroller with 64/128Kbytes of ISP Flash and USB Controller
PDF  456 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90USB646 Datasheet(HTML) 243 Page - ATMEL Corporation

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243
7593L–AVR–09/12
AT90USB64/128
Figure 22-4. Typical bus powered application with 3V I/O.
22.3.1.2
Self powered device
Figure 22-5. Typical self powered application with 3.4V to 5.5V I/O.
1µF
UVSS
External
3V regulator
UDP
UDM
VBUS
UVSS
UID
UCAP
D-
D+
VBUS
UID
UGND
UVCC
AVCC
VCC
XTAL1
XTAL2
GND
GND
Rs = 22
Rs = 22
1µF
External 3.4V - 5.5V
power supply
UDP
UDM
VBUS
UVSS
UID
UCAP
D-
D+
VBUS
UID
UGND
UVCC
AVCC
VCC
XTAL1
XTAL2
GND
GND
Rs = 22
Rs = 22



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