4-BIT ARITHMETIC LOGIC UNIT

The MC54/74F381 performs three arithmetic and three logic operations on two 4-bit words, A and B. Two additional Select input codes force the Function outputs LOW or HIGH. Carry Propagate and Generate outputs are provided for use with the F182 Carry Lookahead Generator for high-speed expansion to longer word lengths. For ripple expansion, refer to the F382 ALU data sheet.

• Low Input Loading Minimizes Drive Requirements
• Performs Six Arithmetic and Logic Functions
• Selectable Low (Clear) and High (Preset) Functions
• Carry Generate and Propagate Outputs for use with
   Carry Lookahead Generator