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ST Microelectronics - 8 CHANNEL MULTIPLEXER/REGISTER 3 STATE

Numéro de référence M74HC354
Description 8 CHANNEL MULTIPLEXER/REGISTER 3 STATE
Fabricant ST Microelectronics 
Logo ST Microelectronics 





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M74HC354 fiche technique
M54HC354
M74HC354
8 CHANNEL MULTIPLEXER/REGISTER (3 STATE)
. HIGH SPEED
tPD = 24 ns (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION
ICC = 4 µA (MAX.) AT TA = 25 °C
. HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
. OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 6 mA (MIN.)
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO 6 V
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS354
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M 54HC 35 4F 1R
M 74H C3 54 M1 R
M 74HC 35 4B 1R
M 74H C3 54 C1 R
DESCRIPTION
The M54/74HC354 is a high speed CMOS 8-CHAN-
NEL MULTIPLEXER/REGISTER (3-state) fabri-
cated in silicon gate C2MOS technology. It has the
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)
determined by the address data.
The information at the data inputs (D0 to D7) is
stored in the 8-bit latch at the negative pulse on DC
input. The information at the address 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 suit-
able for interfacing with bus lines in a bus organized
system.
The M54/74HC354 is similar in function to the
M54/74HC356, which has an 8-bit flip-flop as the
data register instead of an 8-bit latch. All inputs are
equipped with protection circuits against static dis-
charge and transient excess voltage.
April 1993
PIN CONNECTIONS (top view)
NC =
No Internal
Connection
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