internal circuitry and pin configuration of 74LS189 IC

eleanor said:

hello to all electronic enthusiast out there!!!

im looking for the internal circuitry and pin configuration of a very rare IC, the 74LS189.....to be used in our project. can somebody please help me look for it...im quite desperate coz the deadline of the project is 2 weeks away.
i cant find it even in the internet...

thanks

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