74HC14; 74HCT14
Hex inverting Schmitt trigger
Rev. 7 — 19 November 2015
Product data sheet
1. General description
The 74HC14; 74HCT14 is a hex inverter with Schmitt-trigger inputs. This device features
reduced input threshold levels to allow interfacing to TTL logic levels. Inputs also include
clamp diodes, this enables the use of current limiting resistors to interface inputs to
voltages in excess of V
CC
. Schmitt trigger inputs transform slowly changing input signals
into sharply defined jitter-free output signals.
2. Features and benefits
Complies with JEDEC standard no. 7A
Low-power dissipation
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from
40 C
to +85
C
and from
40 C
to +125
C
3. Applications
Wave and pulse shapers
Astable multivibrators
Monostable multivibrators
NXP Semiconductors
74HC14; 74HCT14
Hex inverting Schmitt trigger
4. Ordering information
Table 1.
Ordering information
Package
Temperature range
74HC14D
74HCT14D
74HC14DB
74HCT14DB
74HC14PW
74HCT14PW
74HC14BQ
74HCT14BQ
40 C
to +125
C
DHVQFN14
40 C
to +125
C
TSSOP14
40 C
to +125
C
SSOP14
40 C
to +125
C
Name
SO14
Description
plastic small outline package; 14 leads; body width
3.9 mm
plastic shrink small outline package; 14 leads; body
width 5.3 mm
plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
Version
SOT108-1
SOT337-1
SOT402-1
Type number
plastic dual in-line compatible thermal enhanced very SOT762-1
thin quad flat package; no leads; 14 terminals;
body 2.5
3
0.85 mm
5. Functional diagram
Fig 1.
Logic symbol
Fig 2.
IEC logic symbol
Fig 3.
Logic diagram
(one Schmitt trigger)
74HC_HCT14
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 7 — 19 November 2015
2 of 20
NXP Semiconductors
74HC14; 74HCT14
Hex inverting Schmitt trigger
6. Pinning information
6.1 Pinning
(1) This is not a supply pin. The substrate is attached to this
pad using conductive die attach material. There is no
electrical or mechanical requirement to solder this pad.
However, if it is soldered, the solder land should remain
floating or be connected to GND.
Fig 4.
Pin configuration SO14 and (T)SSOP14
Fig 5.
Pin configuration DHVQFN14
6.2 Pin description
Table 2.
Symbol
1A to 6A
1Y to 6Y
GND
V
CC
Pin description
Pin
1, 3, 5, 9, 11, 13
2, 4, 6, 8, 10, 12
7
14
Description
data input 1
data output 1
ground (0 V)
supply voltage
7. Functional description
Table 3.
Input
nA
L
H
[1]
H = HIGH voltage level;
L = LOW voltage level.
Function table
[1]
Output
nY
H
L
74HC_HCT14
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 7 — 19 November 2015
3 of 20
NXP Semiconductors
74HC14; 74HCT14
Hex inverting Schmitt trigger
8. Limiting values
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
V
CC
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
P
tot
Parameter
supply voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
SO14, (T)SSOP14 and DHVQFN14
packages
[2]
Conditions
V
I
<
0.5
V or V
I
> V
CC
+ 0.5 V
V
O
<
0.5
V or V
O
> V
CC
+ 0.5 V
0.5
V < V
O
< V
CC
+ 0.5 V
[1]
[1]
Min
0.5
-
-
-
-
50
65
-
Max
+7
20
20
25
50
-
+150
500
Unit
V
mA
mA
mA
mA
mA
C
mW
[1]
[2]
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
For SO14 package: P
tot
derates linearly with 8 mW/K above 70
C.
For (T)SSOP14 packages: P
tot
derates linearly with 5.5 mW/K above 60
C.
For DHVQFN14 packages: P
tot
derates linearly with 4.5 mW/K above 60
C.
9. Recommended operating conditions
Table 5.
Recommended operating conditions
Voltages are referenced to GND (ground = 0 V)
Symbol Parameter
V
CC
V
I
V
O
T
amb
supply voltage
input voltage
output voltage
ambient temperature
Conditions
Min
2.0
0
0
40
74HC14
Typ
5.0
-
-
+25
Max
6.0
V
CC
V
CC
+125
Min
4.5
0
0
40
74HCT14
Typ
5.0
-
-
+25
Max
5.5
V
CC
V
CC
+125
V
V
V
C
Unit
74HC_HCT14
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 7 — 19 November 2015
4 of 20
NXP Semiconductors
74HC14; 74HCT14
Hex inverting Schmitt trigger
10. Static characteristics
Table 6.
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
T
amb
= 25
C
Min
74HC14
V
OH
HIGH-level
output voltage
V
I
= V
T+
or V
T
I
O
=
20 A;
V
CC
= 2.0 V
I
O
=
20 A;
V
CC
= 4.5 V
I
O
=
20 A;
V
CC
= 6.0 V
I
O
=
4.0
mA; V
CC
= 4.5 V
I
O
=
5.2
mA; V
CC
= 6.0 V
V
OL
LOW-level
output voltage
V
I
= V
T+
or V
T
I
O
= 20
A;
V
CC
= 2.0 V
I
O
= 20
A;
V
CC
= 4.5 V
I
O
= 20
A;
V
CC
= 6.0 V
I
O
= 4.0 mA; V
CC
= 4.5 V
I
O
= 5.2 mA; V
CC
= 6.0 V
I
I
I
CC
C
I
74HCT14
V
OH
HIGH-level
output voltage
V
I
= V
T+
or V
T
; V
CC
= 4.5 V
I
O
=
20 A
I
O
=
4.0
mA
V
OL
LOW-level
output voltage
V
I
= V
T+
or V
T
; V
CC
= 4.5 V
I
O
= 20
A;
I
O
= 4.0 mA;
I
I
I
CC
I
CC
input leakage
current
supply current
additional
supply current
V
I
= V
CC
or GND; V
CC
= 5.5 V
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 5.5 V
per input pin;
V
I
= V
CC
2.1 V; other pins
at V
CC
or GND; I
O
= 0 A;
V
CC
= 4.5 V to 5.5 V
-
-
-
-
-
0
0.15
-
-
30
0.1
0.26
±0.1
2.0
108
-
-
-
-
-
0.1
0.33
±1.0
20
135
-
-
-
-
-
0.1
0.4
±1.0
40
147
V
V
A
A
A
4.4
3.98
4.5
4.32
-
-
4.4
3.84
-
-
4.4
3.7
-
-
V
V
input leakage
current
supply current
input
capacitance
V
I
= V
CC
or GND; V
CC
= 6.0 V
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 6.0 V
-
-
-
-
-
-
-
-
0
0
0
0.15
0.16
-
-
3.5
0.1
0.1
0.1
0.26
0.26
±0.1
2.0
-
-
-
-
-
-
-
-
-
0.1
0.1
0.1
0.33
0.33
±1.0
20
-
-
-
-
-
-
-
-
-
0.1
0.1
0.1
0.4
0.4
±1.0
40
-
V
V
V
V
V
A
A
pF
1.9
4.4
5.9
3.98
5.48
2.0
4.5
6.0
4.32
5.81
-
-
-
-
-
1.9
4.4
5.9
3.84
5.34
-
-
-
-
-
1.9
4.4
5.9
3.7
5.2
-
-
-
-
-
V
V
V
V
V
Typ
Max
T
amb
=
40 C
to +85
C
Min
Max
T
amb
=
40 C
to +125
C
Min
Max
Unit
C
I
input
capacitance
-
3.5
-
-
-
-
-
pF
74HC_HCT14
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 7 — 19 November 2015
5 of 20
嵌入式系统
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