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FDC37B773 View Datasheet(PDF) - SMSC -> Microchip

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FDC37B773 Datasheet PDF : 196 Pages
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Note 7:
The “activate” bit for Serial Port 2 (CIrCC) is reset by VTR POR only. The VCC power-up
default for this pin is Logic “1”. Do not use this pin for infrared transceivers that are
transmit active high.
Buffer Type Descriptions
I
Input, TTL compatible.
IS
Input with Schmitt trigger.
IOD16 Input/Open Drain Output, 16mA sink.
IO24 Input/Output, 24mA sink, 12mA source.
IO4 Input/Output, 4mA sink, 2mA source.
O4
Output, 4mA sink, 2mA source.
O24 Output, 24mA sink, 12mA source.
OD24 Output, Open Drain, 24mA sink.
ICLK Clock Input
IO12 Input/Output, 12mA sink, 6mA source
O12 Output, 12mA sink, 6mA source
OD12 Output, Open Drain, 12 mA sink
O24PD Output, 12mA sink, 6mA source with 30 µA pull-down
9
 

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