TECHNICAL DATA
IN74HC27A
Triple 3-Input NOR Gate
The IN74HC27A is high-speed Si-gate CMOS device and are pin compatib...
TECHNICAL DATA
IN74HC27A
Triple 3-Input NOR Gate
The IN74HC27A is high-speed Si-gate CMOS device and are pin compatible with low power
Schottky TTL (LSTTL) . The device provide Triple 3-input NOR 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
ORDERING INFORMATION IN74HC27AN Plastic IN74HC27AD SOIC TA = -55° to 125° C for all packages
LOGIC DIAGRAM PIN ASSIGNMENT
A1 B1 C1 A2 B2 C2 A3 B3 C3 Y3
A
Y1
A1 B1 A2 B2 C2
1 2 3 4 5 6 7
14 13 12 11 10 9 8
V CC
C1 Y1 C3 B3 A3 Y3
GND
FUNCTION TABLE
Inputs B
L X H X
Output C
L H X X
Y = A + B + C
PIN 14 =VCC PIN 7 = GND
w w
w
a t a d .
e h s
4 t e
c . u
om
L X X H
H L L L
X = don’t care
1
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Y2
Y2
IN74HC27A
MAXIMUM RATINGS*
Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP** SOIC Package** Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) Value -0.5 to +7.0 -1.5 to VCC +1.5 -0.5 to VCC +0.5 ±20 ±25 ±50 750 500 -65 to +150 260 Unit V V V mA mA mA mW °C °C
*Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be rest...
