Four-Bit Full-Adder ICS

• There are a number of ICs available that contain adder circuits.
• The 7483 and 4008 are examples of ICs with 4 full-adder circuits.
• The 7483 and 4008 use a fast-look-ahead carry circuit to speed up the circuit propagation time. Without this circuit the carry would have to ripple through all 4 bits.

 

 

 

 

 

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