TECHNICAL DATA
Octal 3-State Noninverting
Bus Transceiver
High-Speed Silicon-Gate CMOS
The IN74AC623 is identical in pinout to the LS/ALS623,
HC/HCT623. The device inputs are compatible with standard CMOS
outputs; with pullup resistors, they are compatible with LS/ALS outputs.
The IN74AC623 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.
•
Outputs Directly Interface to CMOS, NMOS, and TTL
•
Operating Voltage Range: 2.0 to 6.0 V
•
Low Input Current: 1.0
μA;
0.1
μA
@ 25°C
•
High Noise Immunity Characteristic of CMOS Devices
•
Outputs Source/Sink 24 mA
IN74AC623
ORDERING INFORMATION
IN74AC623N Plastic
IN74AC623DW SOIC
T
A
= -40° to 85° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Control Inputs
Output
Enable
PIN 20=V
CC
PIN 10 = GND
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)
H
H
H
L
L
H
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
