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DOC7707 Datasheet(PDF) 40 Page - List of Unclassifed Manufacturers

Part # DOC7707
Description  Microcontroller with 8/16K Bytes of ISP Flash and USB Controller
PDF  307 Pages
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Manufacturer  ETC1 [List of Unclassifed Manufacturers]
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DOC7707 Datasheet(HTML) 40 Page - List of Unclassifed Manufacturers

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7707F–AVR–11/10
AT90USB82/162
Figure 7-3.
3.3V configuration
Important note:
In the 3.3V configuration, the internal regulator is bypassed. The regulator has to be disabled to
avoid extra power consumption.
7.0.1
Regulator Control Register – REGCR
• Bit 0 – REGDIS: Regulator Disable
Set this bit to disable the internal 3.3V regulator. This bit should be used only in a full 3.3V appli-
cation. This bit is reset to 0 in every case. The firmware has the responsability to set it after each
reset if required.
USB Pad
PS/2 Pad
AVR Core
I/O
3.3V Reg
Comparator
UVSS
VSS
UVCC
UCAP
VCC
Band
Gap
POR
BOD
PLL
AVCC
(3.3V)
Bit
7654
3
2
1
0
----
-
-
-
REGDIS
REGCR
Read/Write
RRRR
R
R
R
R/W
Initial Value
0000
0
0
0
0



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