M54HC27

M74HC27

February 1993

TRIPLE 3-INPUT NOR GATE

B1R

(Plastic Package)

ORDER CODES :

M54HC27F1R

M74HC27M1R

M74HC27B1R

M74HC27C1R

F1R

(Ceramic Package)

M1R

(Micro Package)

C1R

(Chip Carrier)

PIN CONNECTIONS (top view)

NC =

No Internal

Connection

INPUT AND OUTPUT EQUIVALENT CIRCUIT

.

HIGH SPEED

.

LOW POWER DISSIPATION

.

HIGH NOISE IMMUNITY

.

OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS

.

SYMMETRICAL OUTPUT IMPEDANCE

.

BALANCED PROPAGATION DELAYS

.

WIDE OPERATING VOLTAGE RANGE

.

PIN AND FUNCTION COMPATIBLE WITH

54/74LS27

The M54/74HC27 is a high speed CMOS TRIPLE

3-INPUT NOR GATE fabricated in silicon gate

C

It has the same high speed performance of LSTTL

combined with true CMOS low power consumption.

The internal circuit is composed of 3 stages includ-

ing buffered output, which gives high noise immunity

and a stable output. All inputs are equipped with pro-

tection circuits against static discharge and transient

excess voltage.

DESCRIPTION

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