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DOC7707 Fiches technique(PDF) 39 Page - List of Unclassifed Manufacturers

No de pièce DOC7707
Description  Microcontroller with 8/16K Bytes of ISP Flash and USB Controller
PDF  307 Pages
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Fabricant  ETC1 [List of Unclassifed Manufacturers]
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DOC7707 Fiches technique(HTML) 39 Page - List of Unclassifed Manufacturers

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39
7707F–AVR–11/10
AT90USB82/162
7.
Power Distribution
The AT90USB82/162 product includes an internal 5V to 3.3V regulator that
allows to supply the USB pad (see Figure 7-1.) and, depending on the applica-
tion, external components or even the microcontroller itself (see Figure 7-2.).
Figure 7-1.
5V configuration
Figure 7-2.
5V / 3.3V configuration
USB Pad
PS/2 Pad
AVR Core
I/O
3.3V Reg
Comparator
UVSS
VSS
UVCC
UCAP
VCC
VBus or PS/2 Vcc (5V)
Band
Gap
POR
BOD
PLL
AVCC
USB or PS/2 connector
USB Pad
PS/2 Pad
AVR Core
I/O
3.3V Reg
Comparator
UVSS
VSS
UVCC
UCAP
VCC
VBus or PS/2 Vcc (5V)
Band
Gap
POR
BOD
PLL
AVCC
USB or PS/2 connector
at least 50 mA
for external chips
(3.3V)



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