SN54F283, SN74F283 4-BIT BINARY FULL ADDERS WITH FAST CARRY

SDFS069A - D2932, MARCH 1987 - REVISED OCTOBER 1993

features

Full-Carry Look-Ahead Across the Four Bits
Systems Achieve Partial Look-Ahead Performance With the Economy of Ripple Carry
Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs

description

The ´F283 is a full adder that performs the addition of two4-bit binary words. The sum ( ) outputs are provided for each bit andthe resultant carry (C4) output is obtained from the fourth bit.

The device features full internal look-ahead across all four bitsgenerating the carry term C4 in typically 5.7 ns. This capabilityprovides the system designer with partial look-ahead performance atthe economy and reduced package count of a ripple-carryimplementation.

The adder logic, including the carry, is implemented in its trueform. End-around carry can be accomplished without the need for logicor level inversion.

The ´F283 can be used with either all-active-high (positivelogic) or all-active-low (negative logic) operands.

The SN54F283 is characterized for operation over the full militarytemperature range of -55°C to 125°C. The SN74F283 ischaracterized for operation from 0°C to 70°C.

Title: 4-BIT BINARY FULL ADDERS WITH FAST CARRY
Product Family: ADDERS
Device Functionality: PARALLEL BINARY ADDER
Orderable Devices: JM38510/34201BEA, SN54F283J, SNJ54F283FK, SNJ54F283J, SN74F283D, SN74F283DR, SN74F283N, SN74F283N3

View the complete PDF datasheet: sdfs069a.pdf (77 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN54F283, SN74F283

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