M54HC7240/7241/7244

M74HC7240/7241/7244

October 1993

HC7240: INVERTED - HC7241/7244 NON INVERTED

OCTAL BUS BUFFER WITH 3 STATE OUTPUTS

B1R

(Plastic Package)

ORDER CODES :

M54HCXXXXF1R

M74HCXXXXM1R

M74HCXXXXB1R

M74HCXXXXC1R

F1R

(Ceramic Package)

M1R

(Micro Package)

C1R

(Chip Carrier)

PIN CONNECTION (top view)

.

HIGH SPEED

.

LOW POWER DISSIPATION

.

HIGH NOISE IMMUNITY

.

OUTPUT DRIVE CAPABILITY

15 LSTTL LOADS

.

SYMMETRICAL OUTPUT IMPEDANCE

.

BALANCED PROPAGATION DELAYS

.

WIDE OPERATING VOLTAGE RANGE

.

PIN AND FUNCTION COMPATIBLE

WITH 54/74LS240/241/244

DESCRIPTION

The M54/74HC7240, HC7241 and HC7244 are high

speed CMOS OCTAL BUS BUFFERs fabricated in

silicon gate C

They have the same high speed performance of

LSTTL combined with true CMOS low power

consumption.

The designer has a choise of select combination of

inverting and non-inverting outputs, symmetrical G

(active

low

output

control)

input,

and

complementary G and G inputs. Each control input

governs four BUS BUFFERs.

The HC7240, HC7241 and HC7244 have the same

pin configuration and function as the HC240, HC241

and

HC244

and

they

have

a

hysteresis

characteristics with each input so can be used as a

line receiver, etc.

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

HC7244

HC7241

HC7240

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