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KK74ACT533 Datasheet, PDF (1/6 Pages) KODENSHI KOREA CORP. – Octal 3-State Inverting Transparent Latch High-Speed Silicon-Gate CMOS
TECHNICAL DATA
Octal 3-State Inverting
Transparent Latch
High-Speed Silicon-Gate CMOS
KK74ACT533
The KK74ACT533 is identical in pinout to the LS/ALS533,
HC/HCT533. The KK74ACT533 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
KK74ACT533N Plastic
KK74ACT533DW SOIC
TA = -40° to 85° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
IN 20=VCC
PIN 10 = GND
FUNCTION TABLE
Inputs
Output Latch D
Enable Enable
L
HH
L
HL
L
LX
H
XX
X = don’t care
P Z = high impedance
Output
Q
L
H
no
change
Z
1