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KK74HC20A Datasheet, PDF (1/5 Pages) KODENSHI KOREA CORP. – Dual 4-Input NAND Gate High-Performance Silicon-Gate CMOS
TECHNICAL DATA
Dual 4-Input NAND Gate
High-Performance Silicon-Gate CMOS
KK74HC20A
The KK74HC20A is identical in pinout to the LS/ALS20. The device
inputs are compatible with standard CMOS outputs; with pullup resistors,
they are compatible with LS/ALSTTL outputs.
• 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
KK74HC20AN Plastic
KK74HC20AD SOIC
TA = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 14 =VCC
PIN 7 = GND
PINS 3,11 = NO CONNECTION
NC = NO CONNECTION
FUNCTION TABLE
Inputs
ABC
LXX
XLX
XXL
XXX
HHH
X = don’t care
Output
D
Y
X
H
X
H
X
H
L
H
H
L
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