SN74LS181N ALU how to combine two of them to calculate larger numbers ?

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gomi

Joined Jan 20, 2019
7
I want to combine two of SN74LS181N ALU's to get 8 bits. How is that possible to achieve it ? I want to know for A input and B input (each 8 bit Dipswitch) which pin to connect on ALU.

Reference video:

Thank you.
 
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