TECHNICAL DATA
IN74ACT533
Octal 3-State Inverting
Transparent Latch
High-Speed Silicon-Gate CMOS
The IN74ACT533 is identical in pinout to the LS/ALS533,
HC/HCT533. The IN74ACT533 may be used as a level converter for
interfacing TTL or NMOS outputs to High Speed CMOS inputs.
These latches appear transparent to data (i.e., the outputs change
asynchronously) when Latch Enable is high. The data appears as the
outputs in inverted form. When Latch Enable goes low, data meeting the
setup and hold time becomes latched.
The Output Enable input does not affect the state of the latches, but
when Output Enable is high, all device outputs are forced to the high-
impedance state. Thus, data may be latched even when the outputs are not
enabled.
•
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
•
3-State Outputs for Bus Interfacing
ORDERING INFORMATION
IN74ACT533N Plastic
IN74ACT533DW SOIC
T
A
= -40° to 85° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
Output
Enable
L
L
L
Latch
Enable
H
H
L
D
H
L
X
X
Output
Q
L
H
no
change
Z
H
X
X = don’t care
P Z = high impedance
IN 20=V
CC
PIN 10 = GND
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
