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Part Number MM74C14

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TL F 5879
MM54C14MM74C14
Hex
Schmitt
Trigger
February 1988
MM54C14 MM74C14 Hex Schmitt Trigger
General Description
The MM54C14 MM74C14 Hex Schmitt Trigger is a mono-
lithic complementary MOS (CMOS) integrated circuit con-
structed with N- and P-channel enhancement transistors
The positive and negative going threshold voltages V
Ta
and V
Tb
show low variation with respect to temperature
(typ
0 0005V C
at
V
CC
e
10V)
and
hysteresis
V
Ta
b
V
Tb
t
0 2 V
CC
is guaranteed
All inputs are protected from damage due to static dis-
charge by diode clamps to V
CC
and GND
Features
Y
Wide supply voltage range
3 0V to 15V
Y
High noise immunity
0 70 V
CC
(typ )
Y
Low power
0 4 V
CC
(typ )
TTL compatibility
0 2 V
CC
guaranteed
Y
Hysteresis
0 4 V
CC
(typ )
0 2 V
CC
guaranteed
Connection Diagram
Dual-In-Line Package
TL F 5879 ­ 1
Top View
Order Number MM54C14 or MM74C14
C1995 National Semiconductor Corporation
RRD-B30M105 Printed in U S A
Absolute Maximum Ratings
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Voltage at Any Pin
b
0 3V to V
CC
a
0 3V
Operating Temperature Range
MM54C14
b
55 C to
a
125 C
MM74C14
b
40 C to
a
85 C
Storage Temperature Range
b
65 C to
a
150 C
Power Dissipation
Dual-In-Line
700 mW
Small Outline
500 mW
Operating V
CC
Range
3 0V to 15V
Absolute Maximum V
CC
18V
Lead Temperature
(Soldering 10 seconds)
260 C
DC Electrical Characteristics
Min Max limits apply across the guaranteed temperature range unless otherwise noted
Symbol
Parameter
Conditions
Min
Typ
Max
Units
CMOS TO CMOS
V
Ta
Positive Going Threshold Voltage
V
CC
e
5V
3 0
3 6
4 3
V
V
CC
e
10V
6 0
6 8
8 6
V
V
CC
e
15V
9 0
10 0
12 9
V
V
Tb
Negative Going Threshold Voltage
V
CC
e
5V
0 7
1 4
2 0
V
V
CC
e
10V
1 4
3 2
4 0
V
V
CC
e
15V
2 1
5 0
6 0
V
V
Ta
­ V
Tb
Hysteresis
V
CC
e
5V
1 0
2 2
3 6
V
V
CC
e
10V
2 0
3 6
7 2
V
V
CC
e
15V
3 0
5 0
10 8
V
V
OUT(1)
Logical ``1'' Output Voltage
V
CC
e
5V I
O
e b
10 mA
4 5
V
V
CC
e
10V I
O
e b
10 mA
9 0
V
V
OUT(0)
Logical ``0'' Output Voltage
V
CC
e
5V I
O
e
10 mA
0 5
V
V
CC
e
10V I
O
e
10 mA
1 0
V
I
IN(1)
Logical ``1'' Input Current
V
CC
e
15V V
IN
e
15V
0 005
1 0
m
A
I
IN(0)
Logical ``0'' Input Current
V
CC
e
15V V
IN
e
0V
b
1 0
b
0 005
m
A
I
CC
Supply Current
V
CC
e
15V V
IN
e
0V 15V
0 05
15
m
A
V
CC
e
5V V
IN
e
2 5V (Note 4)
20
m
A
V
CC
e
10V V
IN
e
5V (Note 4)
200
m
A
V
CC
e
15V V
IN
e
7 5V (Note 4)
600
m
A
CMOS LPTTL INTERFACE
V
IN(1)
Logical ``1'' Input Voltage
V
CC
e
5V
4 3
V
V
IN(0)
Logical ``0'' Input Voltage
V
CC
e
5V
0 7
V
V
OUT(1)
Logical ``1'' Output Voltage
54C V
CC
e
4 5V I
O
e b
360 mA
2 4
V
74C V
CC
e
4 75V I
O
e b
360 mA
2 4
V
V
OUT(0)
Logical ``0'' Output Voltage
54C V
CC
e
4 5V I
O
e
360 mA
0 4
V
74C V
CC
e
4 75V I
O
e
360 mA
0 4
V
OUTPUT DRIVE (see 54C 74C Family Characteristics Data Sheet) T
A
e
25 C (Short Circuit Current)
I
SOURCE
Output Source Current
V
CC
e
5V V
OUT
e
0V
b
1 75
b
3 3
mA
(P-Channel)
I
SOURCE
Output Source Current
V
CC
e
10V V
OUT
e
0V
b
8 0
b
15
mA
(P-Channel)
I
SINK
Output Sink Current
V
CC
e
5V V
OUT
e
V
CC
1 75
3 6
mA
(N-Channel)
I
SINK
Output Sink Current
V
CC
e
10V V
OUT
e
V
CC
8 0
16
mA
(N-Channel)
2
AC Electrical Characteristics
T
A
e
25 C C
L
e
50 pF unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Units
t
PD0
t
PD1
Propagation Delay from Input
V
CC
e
5V
220
400
ns
to Output
V
CC
e
10V
80
200
ns
C
IN
Input Capacitance
Any Input (Note 2)
5 0
pF
C
PD
Power Dissipation Capacitance
(Note 3) Per Gate
20
pF
AC Parameters are guaranteed by DC correlated testing
Note 1
``Absolute Maximum Ratings'' are those values beyond which the safety of the device cannot be guaranteed Except for ``Operating Temperature Range''
they are not meant to imply that the devices should be operated at these limits The table of ``Electrical Characteristics'' provides conditions for actual device
operation
Note 2
Capacitance is guaranteed by periodic testing
Note 3
C
PD
determines the no load AC power consumption of any CMOS device For complete explanation see 54C 74C Family Characteristics Application
Note
AN-90
Note 4
Only one of the six inputs is at
V
CC
the others are either at V
CC
or GND
Typical Applications
Low Power Oscillator
TL F 5879 ­ 2
t
1
RC fin
V
T
a
V
T
b
t
1
RC fin
V
CC
b
V
T
b
V
CC
b
V
T
a
f
1
RC fin
V
T
a
(V
CC
b
V
T
b
)
V
T
b
(V
CC
b
V
T
a
)
1
1 7 RC
Note
The equations assume t
1
a
t
2
n
t
pd0
a
t
pd1
TL F 5879 ­ 3
3
Typical Performance Characteristics
Typical Transfer Characteristics
TL F 5879 ­ 4
Guaranteed Trip Point Range
TL F 5879 ­ 5
TL F 5879 ­ 6
Note
For more information on output drive characteristics power dissipation and propagation delays see AN-90
4
Physical Dimensions
inches (millimeters)
Ceramic Dual-In-Line Package (J)
Order Number MM54C14J or MM74C14J
NS Package Number J14A
5
MM54C14MM74C14
Hex
Schmitt
Trigger
Physical Dimensions
inches (millimeters) (Continued)
Molded Dual-In-Line Package (N)
Order Number MM54C14N or MM74C14N
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
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