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.
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Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0 mA
High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
IN74HCT27AN
IN74HCT27AD
IZ74HCT27A
Plastic
SOIC
Chip
TA = -55° to 125° C for all packages
LOGIC DIAGRAM
A1
PIN ASSIGNMENT
Y1
Y2
Y3
B1
C1
V
A1
B1
A2
B2
1
2
3
4
5
6
7
14
13
12
CC
C1
Y1
A2
B2
11 C3
10 B3
C2
A3
Y3
9
8
Y2
C2
A3
B3
C3
GND
FUNCTION TABLE
Inputs
Output
A
L
B
L
C
L
Y = A + B + C
H
L
L
L
X
X
H
X
H
X
H
X
X
PIN 14 =VCC
PIN 7 = GND
X = don’t care
INTEGRAL
1
INTEGRAL [ INTEGRAL CORP. ]
