NC7S14 TinyLogic HS Inverter with Schmitt Trigger Input
January 1996
Revised June 2000
NC7S14
TinyLogic
HS Inverter with Schmitt Trigger Input
General Description
The NC7S14 is a single high performance CMOS Inverter
with Schmitt Trigger input. The circuit design provides hys-
teresis between the positive-going and negative going
input thresholds thereby improving noise margins.
Advanced Silicon Gate CMOS fabrication assures high
speed and low power circuit operation over a broad V
CC
range. ESD protection diodes inherently guard both input
and output with respect to the V
CC
and GND rails.
Features
s
Space saving SOT23 or SC70 5-lead package
s
Schmitt input hysteresis:
>
1V typ
s
High speed: t
PD
4.5 ns typ
s
Low quiescent power: I
CC
<
1
µ
A
s
Balanced output drive: 2 mA I
OL
,
−
2 mA I
OH
s
Broad V
CC
operating range: 2V – 6V
s
Balanced propagation delays
s
Specified for 3V operation
Ordering Code:
Order Number
NC7S14M5
NC7S14M5X
NC7S14P5
NC7S14P5X
Package
Number
MA05B
MA05B
MAA05A
MAA05A
Product Code
Top Mark
7S14
7S14
S14
S14
Package Description
5-Lead SOT23, JEDEC MO-178, 1.6mm
5-Lead SOT23, JEDEC MO-178, 1.6mm
5-Lead SC70, EIAJ SC-88a, 1.25mm Wide
5-Lead SC70, EIAJ SC-88a, 1.25mm Wide
Supplied As
250 Units on Tape and Reel
3k Units on Tape and Reel
250 Units on Tape and Reel
3k Units on Tape and Reel
Logic Symbol
IEEE/IEC
Connection Diagram
(Top View)
Pin Descriptions
Pin Names
A
Y
NC
Description
Input
Output
No Connect
Function Table
Y
=
A
Input
A
L
H
H
=
HIGH Logic Level
L
=
LOW Logic Level
Output
Y
H
L
TinyLogic is a trademark of Fairchild Semiconductor Corporation.
© 2000 Fairchild Semiconductor Corporation
DS012135
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NC7S14
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
CC
)
DC Input Diode Current (I
IK
)
@V
IN
≤ −
0.5V
@V
IN
≥
V
CC
+
0.5V
DC Input Voltage (V
IN
)
DC Output Diode Current (I
OK
)
@V
OUT
< −
0.5V
@V
OUT
>
V
CC
+
0.5V
DC Output Voltage (V
OUT
)
DC Output Source or Sink
Current (I
OUT
)
DC V
CC
or Ground Current per
Output Pin (I
CC
or I
GND
)
Storage Temperature (T
STG
)
Junction Temperature (T
J
)
Lead Temperature (T
L
)
(Soldering, 10 seconds)
Power Dissipation (P
D
) @
+
85
°
C
SOT23-5
SC70-5
200 mW
150 mW
260
°
C
−
0.5V to
+
7.0V
−
20 mA
+
20 mA
−
0.5V to V
CC
+
0.5V
−
20 mA
+
20 mA
−
0.5V to V
CC
+
0.5V
±
12.5 mA
±
25 mA
−
65
°
C to
+
150
°
C
150
°
C
Recommended Operating
Conditions
(Note 2)
Supply Voltage (V
CC
)
Input Voltage (V
IN
)
Output Voltage (V
OUT
)
Operating Temperature (T
A
)
Thermal Resistance (
θ
JA
)
SOT23-5
SC70-5
300
°
C/W
425
°
C/W
2.0V to 6.0V
0V to V
CC
0V to V
CC
−
40
°
C to
+
85
°
C
Note 1:
Absolute maximum ratings are those values beyond which damage
to the device may occur. 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 loading variables. Fairchild does not
recommend operation of circuits outside the databook specifications.
Note 2:
Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
V
P
Parameter
Positive Threshold Voltage
V
CC
(V)
2.0
3.0
4.5
6.0
V
N
Negative Threshold Voltage
2.0
3.0
4.5
6.0
V
H
Hysteresis Voltage
2.0
3.0
4.5
6.0
V
OH
HIGH Level Output Voltage
2.0
3.0
4.5
6.0
3.0
4.5
6.0
V
OL
LOW Level Output Voltage
2.0
3.0
4.5
6.0
3.0
4.5
6.0
Min
1.0
1.5
2.3
3.0
0.3
0.6
1.13
1.5
0.3
0.4
0.6
0.8
1.90
2.90
4.40
5.90
2.68
4.18
5.68
T
A
= +25°C
Typ
1.29
1.90
2.73
3.56
0.70
1.05
1.66
2.24
0.59
0.85
1.08
1.31
2.0
3.0
4.5
6.0
2.87
4.37
5.86
0.0
0.0
0.0
0.0
0.1
0.1
0.1
0.10
0.10
0.10
0.10
0.26
0.26
0.26
Max
1.5
2.2
3.15
4.2
0.9
1.35
2.0
2.6
1.0
1.3
1.4
1.7
T
A
= −40°C
to
+85°C
Min
1.0
1.5
2.3
3.0
0.3
0.6
1.13
1.5
0.3
0.4
0.6
0.8
1.90
2.90
4.40
5.90
V
IN
=
V
IL
2.63
4.13
5.63
0.10
0.10
0.10
0.10
V
IN
=
V
IH
0.33
0.33
0.33
V
I
OL
=
1.3 mA
I
OL
=
2 mA
I
OL
=
2.6 mA
V
I
OH
=
20
µA
V
IN
=
V
IH
V
I
OH
= −1.3
mA
I
OH
= −2
mA
I
OH
= −2.6
mA
V
I
OH
= −20 µA
V
IN
=
V
IL
Max
1.6
2.2
3.15
4.2
0.9
1.35
2.0
2.6
1.0
1.3
1.4
1.7
V
V
V
Units
Conditions
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2
NC7S14
DC Electrical Characteristics
Symbol
I
IN
I
CC
Parameter
Input Leakage Current
Quiescent Supply Current
V
CC
(V)
6.0
6.0
(Continued)
T
A
= +25°C
T
A
= −40°C
to
+85°C
Max
±0.1
1.0
Min
Max
±1.0
10.0
µA
µA
V
IN
=
V
CC
, GND
V
IN
=
V
CC
, GND
Units
Conditions
Min
Typ
AC Electrical Characteristics
Symbol
t
PLH
t
PHL
Parameter
Propagation Delay
V
CC
(V)
5.0
2.0
3.0
4.5
6.0
t
TLH
t
THL
Output Transition Time
5.0
2.0
3.0
4.5
6.0
C
IN
C
PD
Input Capacitance
Power Dissipation Capacitance
Open
5.0
Min
T
A
= +25°C
Typ
4.5
20
12
8.5
7.5
3
25
16
11
9
2
7
Max
21
100
27
20
17
8
125
35
25
21
10
145
45
30
24
10
pF
pF
(Note 3)
Figure 2
ns
C
L
=
50 pF
Figures
1, 3
125
35
25
21
ns
C
L
=
15 pF
ns
C
L
=
50 pF
Figures
1, 3
T
A
= −40°C
to
+85°C
Min
Max
Units
ns
Conditions
C
L
=
15 pF
Fig. No.
Note 3:
C
PD
is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (I
CCD
) at no output
loading and operating at 50% duty cycle. (See Figure 2.) C
PD
is related to I
CCD
dynamic operating current by the expression:
I
CCD
=
(C
PD
) (V
CC
) (f
IN
)
+
(I
CC
static).
AC Loading and Waveforms
C
L
includes load and stray capacitance
Input PRR
=
1.0 MHz, t
w
=
500 ns
FIGURE 1. AC Test Circuit
FIGURE 3. AC Waveforms
Input
=
AC Waveforms;
PRR
=
variable; Duty Cycle
=
50%
FIGURE 2. I
CCD
Test Circuit
3
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