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74F381 - 4-Bit Arithmetic Logic

Description

The 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.

Features

  • s Low input loading minimizes drive requirements s Performs six arithmetic and logic functions s Selectable LOW (clear) and HIGH (preset) functions s Carry generate and propagate outputs for use with carry lookahead generator Ordering Code: Order Number 74F381SC 74F381SJ 74F381PC Package Number M20B M20D N20A Package.

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Full PDF Text Transcription

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74F381 4-Bit Arithmetic Logic Unit May 1988 Revised August 1999 74F381 4-Bit Arithmetic Logic Unit General Description The 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 74F182 carry lookahead generator for high-speed expansion to longer word lengths. For ripple expansion, refer to the 74F382 ALU data sheet.
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