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KK74HC623A Datasheet

  • KK74HC623A

  • Octal 3-State Noninverting Bus Transceiver High-Performance ...

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TECHNICAL DATA
KK74HC623A
Octal 3-State Noninverting
Bus Transceiver
High-Performance Silicon-Gate CMOS
The KK74HC623A is identical in pinout to the LS/ALS623. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
The KK74HC623A is a 3-state noninverting transceiver that is used for
2-way communication between data buses. Two separate enables are
available. The enable for bus A to B is active-high, the enable for bus B
to A is active-low.
鈥?/div>
Outputs Directly Interface to CMOS, NMOS, and TTL
鈥?/div>
Operating Voltage Range: 2.0 to 6.0 V
鈥?/div>
Low Input Current: 1.0
碌A(chǔ)
鈥?/div>
High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
KK74HC623AN Plastic
KK74HC623ADW SOIC
T
A
= -55擄 to 125擄 C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Control Inputs
PIN 20=V
CC
PIN 10 = GND
Output
Enable
L
Direction
L
Operation
Data Transmitted
from Bus B to
Bus A
Data Transmitted
from Bus A to
Bus B
Buses Isolated
(High Impedance
State)
L
H
H
L
L
H
1

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