KK74HCT21A Datasheet, PDF (1/5 Pages) KODENSHI KOREA CORP. – Dual 4-Input AND Gate

Dual 4-Input AND Gate
TECHNICAL DATA
KK74HCT21A
The KK74HCT21A is high-speed Si-gate CMOS device and is pin
compatible with low power Schottky TTL (LSTTL) . The device provide
the Dual 4-input AND function.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
KK74HCT21AN Plastic
KK74HCT21AD SOIC
T_A = -55° to 125° C for all packages
LOGIC DIAGRAM
A1
B1
C1
A2
B2
C2
D2
PIN 14 =V_CC
PIN 7 = GND
PIN ASSIGNMENT
A1 1
14 V _CC
Y1
B1 2
13 D2
3
12 ^C2
C1 4
11
D1 ₅
10 B2
Y1 6
9 ^A2
GND 7
8 Y2
Y2
FUNCTION TABLE
Inputs
A
B
С
L
X
X
X
L
X
X
X
L
X
X
X
H
H
H
X = don’t care
Output
D
Y
X
L
X
L
X
L
L
L
H
H
1