M54HC356

M74HC356

January 1993

WITH LATCHES (3-STATE)

8 CHANNEL MULTIPLEXER/REGISTER

B1R

(Plastic Package)

ORDER CODES :

M54HC356F1R

M74HC356M1R

M74HC356B1R

M74HC356C1R

F1R

(Ceramic Package)

M1R

(Micro Package)

C1R

(Chip Carrier)

PIN CONNECTIONS (top view)

NC =

No Internal

Connection

DESCRIPTION

.

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

54/74LS356

The M54/74HC356 is a high speed CMOS 8-CHAN-

NEL MULTIPLEXER/REGISTER (3-State) fabri-

cated in silicon gate C

same high speed performance of LSTTL combined

with true CMOS low consumption.

This device contains an 8 channel digital multiplexer

with an 8-bit input data register and a 3-bit address

input register with 3-state outputs. The one of eight

input data will be provided on the Y output pin (non-

inverted output) and W output pin (inverted output)

is determineted by the address data.

The information at the data inputs (D0 to D7) is

stored in the 8-bit flip-flop at the positive going edge

of clock input (CLOCK). The information at the ad-

dress inputs (S0 to S2) is stored in the 3-bit latch at

the negative pulse on SC input. These outputs are

disabled to be high-impedance when input G1 is

held high, input G2 is held high or input G3 is held

low. This device is suitable for interfacing with bus

lines in a bus organized system. The M54/74HC356

is similar in function to the M54/74HC354, which has

an 8-bit latch as the data register instead of an 8-bit

flip-flop. All inputs are equipped with protection cir-

cuits against static discharge and transient excess

voltage.

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