IN74ACT373
OCTAL 3-STATE NONINVERTING
TRANSPARENT LATCH
High-Speed Silicon-Gate CMOS
The IN74ACT373 is identical in pinout to the LS/ALS373,
HC/HCT373. The IN74ACT373 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. When Latch
Enable goes low, data meeting the setup and hold time becomes
latched.
• 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
ORDERING INFORMATION
• Outputs Source/Sink 24 mA
IN74ACT373N Plastic
IN74ACT373DW SOIC
TA = -40° to 85° C for all
packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 20=VCC
PIN 10 = GND
FUNCTION TABLE
Inputs
Latch
Output
Q
Output
D
Enable Enable
L
L
L
H
H
L
H
L
H
L
No
X
Change
Z
H
X
X
X = Don’t Care
Z = High Impedance
1
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