M54HC283 datasheet(1/10 Pages) STMICROELECTRONICS

No de pièce	M54HC283

Description	4 BIT BINARY FULL ADDER

PDF	10 Pages

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

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M54HC283

M74HC283

October 1992

4 BIT BINARY FULL ADDER

B1R

(Plastic Package)

ORDER CODES :

M54HC283F1R

M74HC283M1R

M74HC283B1R

M74HC283C1R

F1R

(Ceramic Package)

M1R

(Micro Package)

C1R

(Chip Carrier)

PIN CONNECTIONS (top view)

NC =

No Internal

Connection

DESCRIPTION

.

HIGH SPEED

tPD = 17 ns (TYP.) AT VCC =5 V

.

LOW POWER DISSIPATION

ICC =4

µA (MAX.) AT 25 °C

.

HIGH NOISE IMMUNITY

VNIH =VNIL =28 % VCC (MIN.)

.

OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS

.

SYMMETRICAL OUTPUT IMPEDANCE

|IOH|= IOL = 4 mA (MIN.)

.

BALANCED PROPAGATION DELAYS

tPLH =tPHL

.

WIDE OPERATING VOLTAGE RANGE

VCC (OPR) = 2 V TO 6 V

.

FULL-CARRY

LOOK-AHEAD ACROSS THE

FOUR BITS

.

PARTIAL LOOK-AHEAD WITH THE ECONOMY

OF RIPPLY CARRY

.

PIN AND FUNCTION COMPATIBLE

WITH 54/74LS283

The M54/74HC283 is a high speed CMOS 4-BIT BI-

NARY FULL ADDER fabricated in silicon gate

C

2MOS technology. It has the same high speed per-

formance of LSTTL combined with true CMOS low

power consumption.

Sum (

Σ) outputs are provided for each bit and a re-

sultant 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 cas-

cading without any additional logic.

All inputs are equipped with protection circuits

against static discharge and transient excess volt-

age.

1/10

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