What is the pin configuration of 74190 IC?

You can just google the IC number and check the datasheet. This is very useful for getting the pin configuration of other IC as well.

Anyway 7486 is a 14pins, 4 independence gates of XOR

Gate Input Output

#1 Pin1 Pin2 PIN3

#2 Pin4 Pin5 PIN6

#3 Pin10Pin9 Pin8

#4 Pin13Pin12 Pin11

Others

Vcc Pin 14

Gnd Pin 7

Hope that helps.