1/9

August 2001

s

HIGH SPEED :

s

LOW POWER DISSIPATION:

s

HIGH NOISE IMMUNITY:

s

SYMMETRICAL OUTPUT IMPEDANCE:

s

BALANCED PROPAGATION DELAYS:

s

WIDE OPERATING VOLTAGE RANGE:

s

FULL-CARRY LOOK-AHEAD ACROSS THE

FOUR BITS

s

PARTIAL LOOK-AHEAD WITH THE

ECONOMY OF RIPPLE CARRY

s

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 283

DESCRIPTION

The M74HC283 is an high speed CMOS 4 BIT

BINARY FULL ADDER fabricated with silicon gate

Sum (

Σ) outputs are provided for each bit and a

resultant carry (C4) is obtained from the fourth bit.

This adder features full internal look ahead across

all four bits. A 4 x n binary adder is easily built up

by cascading without any additional logic.

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

M74HC283

4-BIT BINARY FULL ADDER

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE

TUBE

T & R

DIP

M74HC283B1R

SOP

M74HC283M1R

M74HC283RM13TR

TSSOP

M74HC283TTR

TSSOP

DIP

SOP