TECHNICAL DATA
IN74ACT620
Octal 3-State Inverting
Bus Transceiver
High-Speed Silicon-Gate CMOS
The IN74ACT620 is identical in pinout to the LS/ALS620,
HC/HCT620. The IN74ACT620 may be used as a level converter for
interfacing TTL or NMOS outputs to High Speed CMOS inputs.
The IN74ACT620 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.
•
TTL/NMOS Compatible Input Levels
•
Outputs Directly Interface to CMOS, NMOS, and TTL
•
Operating Voltage Range: 4.5 to 5.5 V
•
Low Input Current: 1.0
µA;
0.1
µA
@ 25°C
•
Outputs Source/Sink 24 mA
ORDERING INFORMATION
IN74ACT620N Plastic
IN74ACT620DW SOIC
T
A
= -40° to 85° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Control Inputs
Output
Enable
L
PIN 20=V
CC
PIN 10 = GND
H
H
Direction
L
Operation
Data Transmitted
from Bus B to
Bus A (inverted)
Data Transmitted
from Bus A to
Bus B (inverted)
Buses Isolated
(High Impedance
State)
H
L
L
H
Rev. 00