74LCX02 Low Voltage Quad 2-Input NOR Gate with 5V Tolerant Inputs
March 1995
Revised January 2005
74LCX02
Low Voltage Quad 2-Input NOR Gate
with 5V Tolerant Inputs
General Description
The LCX02 contains four 2-input NOR gates. The inputs
tolerate voltages up to 7V allowing the interface of 5V sys-
tems to 3V systems.
The 74LCX02 is fabricated with advanced CMOS technol-
ogy to achieve high speed operation while maintaining
CMOS low power dissipation.
Features
s
5V tolerant inputs
s
2.3V–3.6V V
CC
specification provided
s
5.2 ns t
PD
max (V
CC
=
3.3V), 10
µ
A I
CC
max
s
Power down high impedance inputs and outputs
s
±
24 mA output drive (V
CC
=
3.0V)
s
Implements patented noise/EMI reduction circuitry
s
Latch-up performance exceeds 500 mA
s
ESD performance:
Human body model
>
2000V
Machine model
>
200V
Ordering Code:
Order Number
74LCX02M
74LCX02SJ
74LCX02MTC
74LCX02MTCX_NL
(Note 1)
Package
Number
M14A
M14D
MTC14
MTC14
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Pb-Free 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,
4.4mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Note 1:
“_NL” package available in Tape and Reel only.
Logic Symbol
IEEE/IEC
Connection Diagram
Pin Descriptions
Pin Names
A
n
, B
n
O
n
Description
Inputs
Outputs
© 2005 Fairchild Semiconductor Corporation
ds012409
www.fairchildsemi.com
74LCX02
Absolute Maximum Ratings
(Note 2)
Symbol
V
CC
V
I
V
O
I
IK
I
OK
I
O
I
CC
I
GND
T
STG
Parameter
Supply Voltage
DC Input Voltage
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Source/Sink Current
DC Supply Current per Supply Pin
DC Ground Current per Ground Pin
Storage Temperature
Value
Conditions
Units
V
V
Output in HIGH or LOW State (Note 3)
V
I
<
GND
V
O
<
GND
V
O
>
V
CC
V
mA
mA
mA
mA
mA
−
0.5 to
+
7.0
−
0.5 to
+
7.0
−
0.5 to V
CC
+
0.5
−
50
−
50
+
50
±
50
±
100
±
100
−
65 to
+
150
°
C
Recommended Operating Conditions
(Note 5)
Symbol
V
CC
V
I
V
O
I
OH
/I
OL
Supply Voltage
Input Voltage
Output Voltage
Output Current
HIGH or LOW State
V
CC
=
3.0V
−
3.6V
V
CC
=
2.7V
−
3.0V
V
CC
=
2.3V
−
2.7V
T
A
Free-Air Operating Temperature
Input Edge Rate, V
IN
=
0.8V–2.0V, V
CC
=
3.0V
Parameter
Operating
Data Retention
Min
2.0
1.5
0
0
Max
3.6
3.6
5.5
V
CC
Units
V
V
V
mA
±
24
±
12
±
8
−
40
0
85
10
°
C
ns/V
∆
t/
∆
V
Note 2:
The Absolute Maximum Ratings are those beyond which the safety of the device cannot be guaranteed. The device should not be operating at these
limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the Absolute Maximum Ratings. The “Recommended
Operating Conditions” table will define the conditions for actual device operation.
Note 3:
I
O
Absolute Maximum Rating must be observed.
Note 4:
Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
V
IH
V
IL
V
OH
Parameter
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage I
OH
= −100µA
I
OH
= -8 mA
I
OH
= −12
mA
I
OH
= −18
mA
I
OH
= −24
mA
V
OL
LOW Level Output Voltage
I
OL
=
100µA
I
OL
= 8mA
I
OL
=
12 mA
I
OL
=
16 mA
I
OL
=
24 mA
I
I
I
OFF
I
CC
∆I
CC
Input Leakage Current
Quiescent Supply Current
Increase in I
CC
per Input
0
≤
V
I
≤
5.5V
V
I
=
V
CC
or GND
3.6V
≤
V
I
≤
5.5V
V
IH
=
V
CC
−0.6V
Power-Off Leakage Current V
I
or V
O
=
5.5V
Conditions
V
CC
(V)
2.3
−
2.7
2.7
−
3.6
2.3
−
2.7
2.7
−
3.6
2.3
−
3.6
2.3
2.7
3.0
3.0
2.3
−
3.6
2.3
2.7
3.0
3.0
2.3
−
3.6
0
2.3
−
3.6
2.3
−
3.6
2.3
−
3.6
V
CC
- 0.2
1.8
2.2
2.4
2.2
0.2
0.6
0.4
0.4
0.55
±5.0
10
10
±10
500
µA
µA
µA
µA
V
V
T
A
= −40°C
to
+85°C
Min
1.7
2.0
0.7
0.8
Max
V
V
Units
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2
74LCX02
AC Electrical Characteristics
T
A
= −40°C
to
+85°C,
R
L
=
500
Ω
Symbol
Parameter
V
CC
=
3.3V
±
0.3V,
C
L
=
50 pF
Min
t
PHL
t
PLH
t
OSHL
t
OSLH
Output to Output Skew
(Note 5)
Propagation Delay Time
1.5
1.5
Max
5.2
5.2
1.0
1.0
V
CC
=
2.7V
C
L
=
50 pF
Min
1.5
1.5
Max
6.0
6.0
V
CC
=
2.5V
±
0.2V
C
L
=
30 pF
Min
1.5
1.5
Max
6.2
6.2
ns
ns
Units
Note 5:
Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The
specification applies to any outputs switching in the same direction, either HIGH-to-LOW (t
OSHL
) or LOW-to-HIGH (t
OSLH
).
Dynamic Switching Characteristics
Symbol
V
OLP
V
OLV
Parameter
Quiet Output Dynamic Peak V
OL
Quiet Output Dynamic Valley V
OL
Conditions
C
L
=
50 pF, V
IH
=
3.3V, V
IL
=
0V
C
L
=
30 pF, V
IH
=
2.5V, V
IL
=
0V
C
L
=
50 pF, V
IH
=
3.3V, V
IL
=
0V
C
L
=
30 pF, V
IH
=
2.5V, V
IL
=
0V
V
CC
(V)
3.3
2.5
3.3
2.5
T
A
=
25°C
Typical
0.8
0.6
−0.8
−0.6
Units
V
V
Capacitance
Symbol
C
IN
C
OUT
C
PD
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
Parameter
Conditions
V
CC
=
Open, V
I
=
0V or V
CC
V
CC
=
3.3V, V
I
=
0V or V
CC
V
CC
=
3.3V, V
I
=
0V or V
CC
, f
=
10 MHz
Typical
7
8
25
Units
pF
pF
pF
3
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74LCX02
AC Loading and Waveforms
Generic for LCX Family
FIGURE 1. AC Test Circuit
(C
L
includes probe and jig capacitance)
Test
t
PLH
, t
PHL
t
PZL
, t
PLZ
t
PZH
,t
PHZ
Switch
Open
6V at V
CC
=
3.3
±
0.3V
V
CC
x 2 at V
CC
=
2.5
±
0.2V
GND
Waveform for Inverting and Non-Inverting Functions
3-STATE Output Low Enable and
Disable Times for Logic
Propagation Delay, Pulse Width and t
rec
Waveforms
Setup Time, Hold TIme and Recovery TIme for Logic
3-STATE Output High Enable and
Disable TImes for Logic
FIGURE 2. Waveforms
(Input Pulse Characteristics; f=1MHz, t
r
=t
f
=3ns)
Symbol
V
mi
V
mo
V
x
V
y
V
CC
3.3V
±
0.3V
1.5V
1.5V
V
OL
+
0.3V
V
OH
−
0.3V
1.5V
1.5V
V
OL
+
0.3V
V
OH
−
0.3V
2.7V
t
rise
and t
fall
2.5V
±
0.2V
V
CC
/2
V
CC
/2
V
OL
+
0.15V
V
OH
−
0.15V
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4
74LCX02
Schematic Diagram
Generic for LCX Family
5
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