IN74HC21AN 查看數據表（PDF） - Integral Corp.
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IN74HC21AN Datasheet PDF : 5 Pages
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Dual 4-Input AND Gate
TECHNICAL DATA
IN74HC21A
The IN74HC21A is high-speed Si-gate CMOS device and is pin
compatible with pullup resistors 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: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
LOGIC DIAGRAM
ORDERING INFORMATION
IN74HC21AN
Plastic
IN74HC21AD
SOIC
IZ74HC21A Chip
TA = -55° to 125° C for all packages
A1
B1
C1
A2
B2
C2
D2
PIN 14 =VCC
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
Ñ
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
INTEGRAL
1
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