©2001 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LCX27 Rev. 1.3.0 3
74LCX27 — Low Voltage Triple 3-Input NOR Gate with 5V Tolerant Inputs
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Note:
1. I
O
Absolute Maximum Rating must be observed.
Recommended Operating Conditions
(2)
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to absolute maximum ratings.
Note:
2. Unused inputs must be held HIGH or LOW. They may not float.
Symbol Parameter Rating
V
CC
Supply Voltage –0.5V to +7.0V
V
I
DC Input Voltage –0.5V to +7.0V
V
O
DC Output Voltage, Output in HIGH or LOW State
(1)
–0.5V to V
CC
+ 0.5V
I
IK
DC Input Diode Current, V
I
<
GND –50mA
I
OK
DC Output Diode Current
V
O
<
GND –50mA
V
O
>
V
CC
+50mA
I
O
DC Output Source/Sink Current ±50mA
I
CC
DC Supply Current per Supply Pin ±100mA
I
GND
DC Ground Current per Ground Pin ±100mA
T
STG
Storage Temperature –65°C to +150°C
Symbol Parameter Min. Max. Units
V
CC
Supply Voltage
Operating 2.0 3.6 V
Data Retention 1.5 3.6
V
I
Input Voltage 0 5.5 V
V
O
Output Voltage, HIGH or LOW State 0 V
CC
V
I
OH
/
I
OL
Output Current
V
CC
=
3.0V–3.6V ±24 mA
V
CC
=
2.7V–3.0V ±12
V
CC
=
2.3V–2.7V ±8
T
A
Free-Air Operating Temperature –40 85 °C
∆
t
/
∆
V Input Edge Rate, V
IN
=
0.8V–2.0V, V
CC
=
3.0V 0 10 ns
/
V
