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IN74AC623

Octal 3-State Noninverting Bus Transceiver High-Speed Silicon-Gate CMOS

IK Semicon Co., Ltd 

TECHNICAL DATA

Octal 3-State Noninverting

Bus Transceiver

High-Speed Silicon-Gate CMOS

IN74AC623

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

ORDERING INFORMATION

IN74AC623N Plastic

IN74AC623DW SOIC

TA = -40° to 85° C for all packages

LOGIC DIAGRAM

PIN ASSIGNMENT

PIN 20=VCC

PIN 10 = GND

FUNCTION TABLE

Control Inputs

Output Direction

Enable

L

L

H

H

H

L

L

H

Operation

Data Transmitted

from Bus B to

Bus A

Data Transmitted

from Bus A to

Bus B

Buses Isolated

(High Impedance

State)

Rev. 00

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