74AHC14
HEX INVERTERS WITH SCHMITT TRIGGER INPUTS
Description
The 74AHC14 provides provides six independent Schmitt trigger input
inverters with standard push-pull outputs. The device is designed for
operation with a power supply range of 2.0V to 5.5V. The inputs are
tolerant to 5.5V allowing this device to be used in a mixed voltage
environment.
Pin Assignments
( Top View )
1A
1Y
2A
2Y
3A
3Y
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Vcc
6A
6Y
5A
5Y
4A
4Y
NEW PRODUCT
The gates perform the Boolean function:
Y
=
A
Features
•
•
•
•
•
Wide Supply Voltage Range from 2.0V to 5.5 V
Outputs Sink or Source 8mA at V
CC
= 4.5V
CMOS Low Power Consumption
Schmitt Trigger Action at All Inputs
Typical hysteresis of 1V allows for transformation of slow
changing input signals to sharply defined, fast transition output
signals.
•
•
Inputs can be driven by 3.3V or 5.5V allowing for voltage
translation applications.
ESD Protection Exceeds JESD 22
200-V Machine Model (A115-A)
2000-V Human Body Model (A114-A)
Exceeds 1000-V Charged Device Model (C101C)
•
•
•
•
Latch-Up Exceeds 250mA per JESD 78, Class II
Range of Package Options SO-14 and TSSOP-14
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
SO-14 / TSSOP-14
Applications
•
•
General Purpose Logic
Wide array of products such as:
PCs, Networking, Notebooks, Netbooks
Computer Peripherals, Hard Drives, CD/DVD ROM
TV, DVD, DVR, Set Top Box
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Click here for ordering information, located at the end of datasheet
74AHC14
Document number: DS35342 Rev 3 - 2
1 of 8
www.diodes.com
January 2013
© Diodes Incorporated
74AHC14
Pin Descriptions
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Pin Name
1A
1Y
2A
2Y
3A
3Y
GND
4Y
4A
5Y
5A
6Y
6A
Vcc
Function
Data Input
Data Output
Data Input
Data Output
Data Input
Data Output
Ground
Data Output
Data Input
Data Output
Data Input
Data Output
Data Input
Supply Voltage
Logic Diagram
1A
2A
3A
1
3
5
2
4
6
1Y
2Y
3Y
NEW PRODUCT
4A
5A
6A
9
11
13
8
10
12
4Y
5Y
6Y
Function Table
Input
A
L
H
Output
Y
H
L
Absolute Maximum Ratings
(Note 4) (@T
A
= +25°C, unless otherwise specified.)
Symbol
ESD HBM
ESD CDM
ESD MM
V
CC
V
I
I
IK
I
OK
I
OK
I
O
I
CC
I
GND
T
J
T
STG
P
TOT
Note:
Description
Human Body Model ESD Protection
Charged Device Model ESD Protection
Machine Model ESD Protection
Supply Voltage Range
Input Voltage Range
Input Clamp Current
Output Clamp Current
Output Clamp Current
V
I
< -0.5V
V
O
< -0.5V
V
O
> V
CC
+0.5V
Rating
2
1
200
-0.5 to +7.0
-0.5 to +7.0
-20
-20
25
+/- 25
75
-75
-40 to +150
-65 to +150
500
Unit
KV
KV
V
V
V
mA
mA
mA
mA
mA
mA
°C
°C
mW
Continuous Output Current -0.5V < V
O
V
CC
+0.5V
Continuous Current Through V
CC
Continuous Current Through GND
Operating Junction Temperature
Storage Temperature
Total Power Dissipation
4. Stresses beyond the absolute maximum may result in immediate failure or reduced reliability. These are stress values and device operation should
be within recommend values. V
CC
to the extent the maximum clamp current is exceeded.
5. Unused inputs should be held at V
CC
or Ground.
74AHC14
Document number: DS35342 Rev 3 - 2
2 of 8
www.diodes.com
January 2013
© Diodes Incorporated
74AHC14
Recommended Operating Conditions
(Note 5) @T
A
= +25°C, unless otherwise specified.)
Symbol
V
CC
V
I
V
O
T
A
Note:
Parameter
Supply Voltage
Input Voltage
Output Voltage
Operating Free-Air Temperature
Conditions
Min
2.0
0
0
-40
Max
5.5
5.5
V
CC
+125
Unit
V
V
V
°C
5. Unused inputs should be held at V
CC
or Ground.
NEW PRODUCT
Electrical Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Symbol
Parameter
Positive-Going
Input Threshold
Voltage
Negative-Going
Input Threshold
Voltage
Hysteresis
(V
T+
- V
T-)
I
OH
= -50μA
V
OH
High Level Output
Voltage
I
OH
= -50μA
I
OH
= -50μA
I
OH
= -4mA
I
OH
= -8mA
I
OL
= 50μA
V
OL
Low-level Output
Voltage
I
OL
= 50μA
I
OL
= 50μA
I
OL
= 4mA
I
OL
= 8mA
I
I
I
CC
Input Current
Supply Current
V
I
= GND to 5.5V
V
I
= GND or V
CC,
I
O
= 0
Test Conditions
V
CC
3V
4.5V
5.5V
3V
4.5V
5.5V
3V
4.5V
5.5V
2.0V
3.0V
4.5V
3.0V
4.5V
2.0V
3.0V
4.5V
3.0V
4.5V
3.6V
3.6V
T
A
= -40°C to +85°C
Min
Max
2.2
3.15
3.85
0.9
1.35
1.65
0.3
1.2
0.4
1.4
0.5
1.6
1.9
2.9
4.4
2.48
3.80
0.1
0.1
0.1
0.44
0.44
±1
20
T
A
= -40°C to +125°C
Min
Max
2.2
3.15
3.85
0.9
1.35
1.65
0.25
1.2
0.35
1.4
0.45
1.6
1.9
2.9
4.4
2.40
3.70
0.1
0.1
0.1
0.55
0.55
±2
40
μA
μA
V
V
Unit
V
T+
V
V
T-
V
∆V
T
V
Operating Characteristics
Parameter
C
pd
C
i
Power Dissipation
Capacitance per Gate
Input Capacitance
Test
Conditions
f = 1MHz
V
i
= V
CC
– or GND
V
CC
= 2.0V
Typ
10.4
4.0
V
CC
= 3.3V
Typ
12.3
4.0
V
CC
= 5V
Typ
13
4.0
Unit
pF
pF
74AHC14
Document number: DS35342 Rev 3 - 2
3 of 8
www.diodes.com
January 2013
© Diodes Incorporated
74AHC14
Switching Characteristics
Symbol
Parameter
Test
Conditions
Figure 1
C
L
= 15pF
Figure 1
C
L
= 50pF
V
CC
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
T
A
= +25°C
Min
0.5
0.5
0.5
0.5
Typ
4.3
3.2
5.8
4.2
Max
12.8
8.6
16.3
10.6
-40°C to +85°C
Min
0.5
0.5
0.5
0.5
Max
15.0
10.0
18.0
12.0
-40°C to +125°C
Min
0.5
0.5
0.5
0.5
Max
16.0
11.0
20.5
13.5
Unit
t
PD
Propagation
Delay A
N
to Y
N
ns
NEW PRODUCT
Parameter Measurement Information
V
CC
3.3V -3.6V
4.5V to 5.5V
Inputs
V
I
V
CC
V
CC
t
r
/t
f
3ns
3ns
V
M
V
CC
/2
V
CC
/2
C
L
15pF, 50pF
15pF, 50pF
Voltage Waveform
Pulse Duration
Voltage Waveform
Propagation Delay Times
Inverting and Non Inverting Outputs
Figure 1 Load Circuit and Voltage Waveforms
Notes:
A . Includes test lead and test apparatus capacitance.
B. All pulses are supplied at pulse repetition rate
≤
1 MHz.
C. Inputs are measured separately one transition per measurement.
D. t
PLH
and t
PHL
are the same as t
PD.
74AHC14
Document number: DS35342 Rev 3 - 2
4 of 8
www.diodes.com
January 2013
© Diodes Incorporated
ST传感器与低功耗无线技术论坛
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
