KK74HC373A Datasheet, PDF (1/6 Pages) KODENSHI KOREA CORP. – TECHNICAL DATA

TECHNICAL DATA
Octal 3-State Noninverting
Transparent Latch
High-Performance Silicon-Gate CMOS
KK74HC373A
The KK74HC373A is identical in pinout to the LS/ALS373. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
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.
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.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
KK74HC373AN Plastic
KK74HC373ADW SOIC
T_A = -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 20=V_CC
PIN 10 = GND
FUNCTION TABLE
Inputs
Output Latch D
Enable Enable
L
H
H
L
H
L
L
L
X
H
X
X
X = Don’t Care
Z = High Impedance
Output
Q
H
L
No Change
Z
1