TL/F/11515
74VHC02
Quad
2-Input
NOR
Gate
October 1995
74VHC02
Quad 2-Input NOR Gate
General Description
The ’VHC02 is an advanced high-speed CMOS 2-Input NOR
Gate fabricated with silicon gate CMOS technology. It
achieves the high-speed operation similar to equivalent Bi-
polar Schottky TTL while maintaining the CMOS low power
dissipation. The internal circuit is composed of 3 stages,
including buffer output, which provide high noise immunity
and stable output. An input protection circuit insures that 0V
to 7V can be applied to the input pins without regard to the
supply voltage. This device can be used to interface 5V to
3V systems and two supply systems such as battery back-
up. This circuit prevents device destruction due to mis-
matched supply and input voltages.
Features
Y
Low power dissipation:
I
CC
e
2 mA (max) at T
A
e
25
§
C
Y
High noise immunity: V
NIH
e
V
NIL
e
28% V
CC
(min)
Y
All inputs are equipped with a power down protection
function
Y
Balanced propagation delays: t
PLH
j
t
PHL
Y
Low noise: V
OLP
e
0.8V (max)
Y
Pin and function compatible with 74HC02
Commercial
Package
Package Description
Number
74VHC02M
M14A
14-Lead Molded JEDEC SOIC
74VHC02SJ
M14D
14-Lead Molded EIAJ SOIC
74VHC02MSC
MSC14
14-Lead Molded EIAJ Type 1 SSOP
74VHC02MTC
MTC14
14-Lead Molded JEDEC Type 1 TSSOP
74VHC02N
N14A
14-Lead Molded DIP
Note:
Surface mount packages are also available on Tape and Reel. Specify by appending
the suffix letter ‘‘X’’ to the ordering code.
EIAJ Type 1 SSOP available on tape and reel only, order MSCX.
Logic Symbol
IEEE/IEC
TL/F/11515 – 1
Pin Description
Pin Names
Description
An, Bn
Inputs
On
Outputs
Connection Diagram
Pin Assignment for
DIP, SSOP, TSSOP and SOIC
TL/F/11515 – 2
Truth Table
A
B
O
L
L
H
L
H
L
H
L
L
H
H
L
C1995 National Semiconductor Corporation
RRD-B30M125/Printed in U. S. A.
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
CC
)
b
0.5V to
a
7.0V
DC Input Voltage (V
IN
)
b
0.5V to
a
7.0V
DC Output Voltage (V
OUT
)
b
0.5V to V
CC
a
0.5V
Input Diode Current (I
IK
)
b
20 mA
Output Diode Current (I
OK
)
g
20 mA
DC Output Current (I
OUT
)
g
25 mA
DC V
CC
/GND Current (I
CC
)
g
50 mA
Storage Temperature (T
STG
)
b
65
§
C to
a
150
§
C
Lead Temperature (T
L
)
(Soldering, 10 seconds)
260
§
C
Note 1:
Absolute Maximum Ratings are values beyond
which the device may be damaged or have its useful life
impaired. The databook specifications should be met, with-
out exception, to ensure that the system design is reliable
over its power supply, temperature, and output/input load-
ing variables. National does not recommend operation out-
side databook specifications.
Recommended Operating
Conditions
Supply Voltage (V
CC
)
2.0V to
a
5.5V
Input Voltage (V
IN
)
0V to
a
5.5V
Output Voltage (V
OUT
)
0V to V
CC
Operating Temperature (T
OPR
)
b
40
§
C to
a
85
§
C
Input Rise and Fall Time (t
r
, t
f
)
V
CC
e
3.3V
g
0.3V
0 E 100 ns/V
V
CC
e
5.0V
g
0.5V
0 E 20 ns/V
DC Characteristics for ’VHC Family Devices
Symbol
Parameter
V
CC
(V)
74VHC
Units
Conditions
T
A
e
25
§
C
T
A
e b
40
§
C
to
a
85
§
C
Min
Typ
Max
Min
Max
V
IH
High Level Input
2.0
1.50
1.50
V
Voltage
3.0 – 5.5
0.7 V
CC
0.7 V
CC
V
IL
Low Level Input
2.0
0.50
0.50
V
Voltage
3.0 – 5.5
0.3 V
CC
0.3 V
CC
V
OH
High Level Output
2.0
1.9
2.0
1.9
V
IN
e
V
IH
I
OH
e b
50 mA
Voltage
3.0
2.9
3.0
2.9
V
or V
IL
4.5
4.4
4.5
4.4
3.0
2.58
2.48
V
I
OH
e b
4 mA
4.5
3.94
3.80
I
OH
e b
8 mA
V
OL
Low Level Output
2.0
0.0
0.1
0.1
V
IN
e
V
IH
I
OL
e
50 mA
Voltage
3.0
0.0
0.1
0.1
V
or V
IL
4.5
0.0
0.1
0.1
3.0
0.36
0.44
V
I
OL
e
4 mA
4.5
0.36
0.44
I
OL
e
8 mA
I
IN
Input Leakage
0 – 5.5
g
0.1
g
1.0
m
A
V
IN
e
5.5V or GND
Current
I
CC
Quiescent Supply
5.5
2.0
20.0
m
A
V
IN
e
V
CC
or GND
Current
2
DC Characteristics for ’VHC Family Devices
Symbol
Parameter
V
CC
(V)
74VHC
Units
Conditions
T
A
e
25
§
C
Typ
Limits
V
OLP
*
Quiet Output Maximum
5.0
0.3
0.8
V
C
L
e
50 pF
Dynamic V
OL
V
OLV
*
Quiet Output Minimum
5.0
b
0.3
b
0.8
V
C
L
e
50 pF
Dynamic V
OL
V
IHD
*
Minimum High Level
5.0
3.5
V
C
L
e
50 pF
Dynamic Input Voltage
V
ILD
*
Maximum Low Level
5.0
1.5
V
C
L
e
50 pF
Dynamic Input Voltage
*Parameter guaranteed by design.
AC Electrical Characteristics
Symbol
Parameter
V
CC
(V)
74VHC
Units
Conditions
T
A
e
25
§
C
T
A
e b
40
§
C
to
a
85
§
C
Min
Typ
Max
Min
Max
t
PHL
,
Propagation Delay
3.3
g
0.3
5.6
7.9
1.0
9.5
ns
C
L
e
15 pF
t
PLH
8.1
11.4
1.0
13.0
C
L
e
50 pF
5.0
g
0.5
3.6
5.5
1.0
6.5
ns
C
L
e
15 pF
5.1
7.5
1.0
8.5
C
L
e
50 pF
C
IN
Input Capacitance
4
10
10
pF
V
CC
e
Open
C
PD
Power Dissipation
15
pF
(Note 1)
Capacitance
Note 1:
C
PD
is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average
operating current can be obtained by the equation: I
CC
(opr.) e C
PD
* V
CC
* f
IN
a
I
CC
/4 (per gate).
Ordering Information
The device number is used to form part of a simplified purchasing code, where the package type and temperature range are
defined as follows:
TL/F/11515 – 3
3
Physical Dimensions
inches (millimeters)
14-Lead Small Outline Integrated CircuitÐJEDEC SOIC (M)
NS Package Number M14A
14-Lead Plastic EIAJ SOIC (SJ)
NS Package Number M14D
4
Physical Dimensions
inches (millimeters) (Continued)
14-Lead Plastic EIAJ SSOP Type 1 (MSC)
NS Package Number MSC14
14-Lead Molded JEDEC Type I TSSOP
NS Package MTC14
5
74VHC02
Quad
2-Input
NOR
Gate
Physical Dimensions
inches (millimeters) (Continued)
14-Lead (0.300
×
Wide) Molded Dual-In-Line Package
NS Package Number N14A
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
2. A critical component is any component of a life
systems which, (a) are intended for surgical implant
support device or system whose failure to perform can
into the body, or (b) support or sustain life, and whose
be reasonably expected to cause the failure of the life
failure to perform, when properly used in accordance
support device or system, or to affect its safety or
with instructions for use provided in the labeling, can
effectiveness.
be reasonably expected to result in a significant injury
to the user.
National Semiconductor
National Semiconductor
National Semiconductor
National Semiconductor
Corporation
Europe
Hong Kong Ltd.
Japan Ltd.
1111 West Bardin Road
Fax: (
a
49) 0-180-530 85 86
13th Floor, Straight Block,
Tel: 81-043-299-2309
Arlington, TX 76017
Email: cnjwge
@
tevm2.nsc.com
Ocean Centre, 5 Canton Rd.
Fax: 81-043-299-2408
Tel: 1(800) 272-9959
Deutsch Tel: (
a
49) 0-180-530 85 85
Tsimshatsui, Kowloon
Fax: 1(800) 737-7018
English
Tel: (
a
49) 0-180-532 78 32
Hong Kong
Fran
3ais Tel: (
a
49) 0-180-532 93 58
Tel: (852) 2737-1600
Italiano
Tel: (
a
49) 0-180-534 16 80
Fax: (852) 2736-9960
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.