74AHC1G14; 74AHCT1G14
Inverting Schmitt trigger
Rev. 7 — 18 November 2014
Product data sheet
1. General description
74AHC1G14 and 74AHCT1G14 are high-speed Si-gate CMOS devices. They provide an
inverting buffer function with Schmitt trigger action. These devices are capable of
transforming slowly changing input signals into sharply defined, jitter-free output signals.
The AHC device has CMOS input switching levels and supply voltage range 2 V to 5.5 V.
The AHCT device has TTL input switching levels and supply voltage range 4.5 V to 5.5 V.
2. Features and benefits
Symmetrical output impedance
High noise immunity
ESD protection:
HBM JESD22-A114E: exceeds 2000 V
MM JESD22-A115-A: exceeds 200 V
CDM JESD22-C101C: exceeds 1000 V
Low power dissipation
Balanced propagation delays
SOT353-1 and SOT753 package options
Specified from
40 C
to +125
C
3. Applications
Wave and pulse shapers
Astable multivibrators
Monostable multivibrators
4. Ordering information
Table 1.
Ordering information
Package
Temperature range
74AHC1G14GW
74AHCT1G14GW
74AHC1G14GV
74AHCT1G14GV
40 C
to +125
C
SC-74A
40 C
to +125
C
Name
TSSOP5
Description
plastic thin shrink small outline package; 5 leads;
body width 1.25 mm
plastic surface-mounted package; 5 leads
Version
SOT353-1
SOT753
Type number
NXP Semiconductors
74AHC1G14; 74AHCT1G14
Inverting Schmitt trigger
5. Marking
Table 2.
Marking codes
Marking code
[1]
AF
CF
A14
C14
Type number
74AHC1G14GW
74AHCT1G14GW
74AHC1G14GV
74AHCT1G14GV
[1]
The pin 1 indicator is located on the lower left corner of the device, below the marking code.
6. Functional diagram
Fig 1.
Logic symbol
Fig 2.
IEC logic symbol
Fig 3.
Logic diagram
7. Pinning information
7.1 Pinning
Fig 4.
Pin configuration
7.2 Pin description
Table 3.
Symbol
n.c.
A
GND
Y
V
CC
Pin description
Pin
1
2
3
4
5
Description
not connected
data input
ground (0 V)
data output
supply voltage
74AHC_AHCT1G14
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet
Rev. 7 — 18 November 2014
2 of 16
NXP Semiconductors
74AHC1G14; 74AHCT1G14
Inverting Schmitt trigger
8. Functional description
Table 4.
Function table
H = HIGH voltage level; L = LOW voltage level
Input
A
L
H
Output
Y
H
L
9. Limiting values
Table 5.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
V
CC
V
I
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
P
tot
[1]
[2]
Parameter
supply voltage
input voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
Conditions
Min
0.5
0.5
Max
+7.0
+7.0
-
20
25
75
-
+150
250
Unit
V
V
mA
mA
mA
mA
mA
C
mW
V
I
<
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]
20
-
-
-
75
65
T
amb
=
40 C
to +125
C
[2]
-
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
For both TSSOP5 and SC-74A packages: above 87.5
C
the value of P
tot
derates linearly with 4.0 mW/K.
10. Recommended operating conditions
Table 6.
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
74AHC1G14
Typ
5.0
-
-
+25
Max
5.5
5.5
V
CC
+125
4.5
0
0
40
74AHCT1G14
Min
Typ
5.0
-
-
+25
Max
5.5
5.5
V
CC
+125
V
V
V
C
Unit
74AHC_AHCT1G14
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet
Rev. 7 — 18 November 2014
3 of 16
NXP Semiconductors
74AHC1G14; 74AHCT1G14
Inverting Schmitt trigger
11. Static characteristics
Table 7.
Static characteristics
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
For type 74AHC1G14
V
OH
HIGH-level
V
I
= V
T+
or V
T
output voltage
I
O
=
50 A;
V
CC
= 2.0 V
I
O
=
50 A;
V
CC
= 3.0 V
I
O
=
50 A;
V
CC
= 4.5 V
I
O
=
4.0
mA; V
CC
= 3.0 V
I
O
=
8.0
mA; V
CC
= 4.5 V
V
OL
LOW-level
V
I
= V
T+
or V
T
output voltage
I
O
= 50
A;
V
CC
= 2.0 V
I
O
= 50
A;
V
CC
= 3.0 V
I
O
= 50
A;
V
CC
= 4.5 V
I
O
= 4.0 mA; V
CC
= 3.0 V
I
O
= 8.0 mA; V
CC
= 4.5 V
I
I
I
CC
C
I
input leakage
current
V
I
= 5.5 V or GND;
V
CC
= 0 V to 5.5 V
1.9
2.9
4.4
2.58
3.94
-
-
-
-
-
-
-
-
2.0
3.0
4.5
-
-
0
0
0
-
-
-
-
1.5
-
-
-
-
-
0.1
0.1
0.1
0.36
0.36
0.1
1.0
10
1.9
2.9
4.4
2.48
3.8
-
-
-
-
-
-
-
-
-
-
-
-
-
0.1
0.1
0.1
0.44
0.44
1.0
10
10
1.9
2.9
4.4
2.40
3.70
-
-
-
-
-
-
-
-
-
-
-
-
-
0.1
0.1
0.1
0.55
0.55
2.0
40
10
V
V
V
V
V
V
V
V
V
V
A
A
pF
Conditions
Min
25
C
Typ
Max
40 C
to +85
C 40 C
to +125
C
Unit
Min
Max
Min
Max
supply current V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 5.5 V
input
capacitance
HIGH-level
V
I
= V
T+
or V
T
; V
CC
= 4.5 V
output voltage
I
O
=
50 A
I
O
=
8.0
mA
LOW-level
V
I
= V
T+
or V
T
; V
CC
= 4.5 V
output voltage
I
O
= 50
A
I
O
= 8.0 mA
input leakage
current
V
I
= 5.5 V or GND;
V
CC
= 0 V to 5.5 V
For type 74AHCT1G14
V
OH
4.4
3.94
-
-
-
-
-
4.5
-
0
-
-
-
-
-
-
0.1
0.36
0.1
1.0
1.35
4.4
3.8
-
-
-
-
-
-
-
0.1
0.44
1.0
10
1.5
4.4
3.70
-
-
-
-
-
-
-
0.1
0.55
2.0
40
1.5
V
V
V
V
A
A
mA
V
OL
I
I
I
CC
I
CC
supply current V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 5.5 V
additional
per input pin; V
I
= 3.4 V;
supply current other inputs at V
CC
or GND;
I
O
= 0 A; V
CC
= 5.5 V
input
capacitance
C
I
-
1.5
10
-
10
-
10
pF
74AHC_AHCT1G14
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet
Rev. 7 — 18 November 2014
4 of 16
NXP Semiconductors
74AHC1G14; 74AHCT1G14
Inverting Schmitt trigger
11.1 Transfer characteristics
Table 8.
Transfer characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V). See
Figure 7
and
Figure 8.
Symbol Parameter
For type 74AHC1G14
V
T+
positive-going
threshold
voltage
negative-going
threshold
voltage
hysteresis
voltage
V
CC
= 3.0 V
V
CC
= 4.5 V
V
CC
= 5.5 V
V
CC
= 3.0 V
V
CC
= 4.5 V
V
CC
= 5.5 V
V
CC
= 3.0 V
V
CC
= 4.5 V
V
CC
= 5.5 V
For type 74AHCT1G14
V
T+
positive-going
threshold
voltage
negative-going
threshold
voltage
hysteresis
voltage
V
CC
= 4.5 V
V
CC
= 5.5 V
V
CC
= 4.5 V
V
CC
= 5.5 V
V
CC
= 4.5 V
V
CC
= 5.5 V
-
-
0.5
0.6
0.4
0.4
-
-
-
-
-
-
2.0
2.0
-
-
1.4
1.6
-
-
0.5
0.6
0.4
0.4
2.0
2.0
-
-
1.4
1.6
-
-
0.5
0.6
0.35
0.35
2.0
2.0
-
-
1.4
1.6
V
V
V
V
V
V
-
-
-
0.9
1.35
1.65
0.3
0.4
0.5
-
-
-
-
-
-
-
-
-
2.2
3.15
3.85
-
-
-
1.2
1.4
1.6
-
-
-
0.9
1.35
1.65
0.3
0.4
0.5
2.2
3.15
3.85
-
-
-
1.2
1.4
1.6
-
-
-
0.9
1.35
1.65
0.25
0.35
0.45
2.2
3.15
3.85
-
-
-
1.2
1.4
1.6
V
V
V
V
V
V
V
V
V
Conditions
Min
25
C
Typ
Max
40 C
to +85
C 40 C
to +125
C
Unit
Min
Max
Min
Max
V
T
V
H
V
T
V
H
74AHC_AHCT1G14
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet
Rev. 7 — 18 November 2014
5 of 16
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