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Part Name
Description
AT89C5131A-TISIL(2004) View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
AT89C5131A-TISIL
(Rev.:2004)
8-bit Flash Microcontroller with Full Speed USB Device
Atmel Corporation
AT89C5131A-TISIL Datasheet PDF : 34 Pages
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AT89C5131A-L
Table 12.
Power Signal Description (Continued)
Signal
Name Type Description
VREF
USB pull-up Controlled Output
O
VREF is used to control the USB D+ 1.5 k
Ω
pull up.
The Vref output is in high impedance when the bit DETACH is set in the
USBCON register.
Alternate
Function
-
11
4338A–USB–08/04
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