TECHNICAL DATA
IN74HCT27A
Triple 3-Input NOR Gate
The IN74HCT27A is high-speed Si-gate CMOS device and is pin
compatible with low power Schottky TTL (LSTTL). The device provide
the Triple 3-input NOR 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
IN74HCT27AN
Plastic
IN74HCT27AD
SOIC
IZ74HCT27A
Chip
T
A
= -55° to 125° C for all packages
LOGIC DIAGRAM
A1
B1
C1
A2
B2
C2
A3
B3
C3
A
L
PIN 14 =V
CC
PIN 7 = GND
X
X
H
PIN ASSIGNMENT
Y1
A1
B1
A2
B2
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V CC
C1
Y1
C3
B3
A3
Y3
Y2
C2
Y2
GND
Y3
FUNCTION TABLE
Inputs
B
L
X
H
X
C
L
H
X
X
Output
Y
=
A
+
B
+
C
H
L
L
L
X = don’t care
INTEGRAL
1
INTEGRAL [ INTEGRAL CORP. ]
