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IN74AC620

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

IK Semicon Co., Ltd 

TECHNICAL DATA

Octal 3-State Inverting

Bus Transceiver

High-Speed Silicon-Gate CMOS

IN74AC620

The IN74AC620 is identical in pinout to the LS/ALS620,

HC/HCT620. The device inputs are compatible with standard CMOS

outputs; with pullup resistors, they are compatible with LS/ALS outputs.

The IN74AC620 is a 3-state 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

IN74AC620N Plastic

IN74AC620DW 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 (inverted)

Data Transmitted

from Bus A to

Bus B (inverted)

Buses Isolated

(High Impedance

State)

Rev. 00

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