74AHCT14A [NEXPERIA]
Hex inverting Schmitt trigger;
| 型号： | 74AHCT14A |
| 厂家： | 
Nexperia |
| 描述： | Hex inverting Schmitt trigger |
| 文件： | 总13页 (文件大小：748K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
74AHCT14A
Hex inverting Schmitt trigger
Rev. 2 — 26 October 2016
Product data sheet
1. General description
The 74AHCT14A is a hexadecimal inverter with Schmitt-trigger inputs, capable of
transforming slowly changing input signals into sharply defined, jitter-free output signals.
Designed to operate over a VCC range from 4.5 V to 5.5 V, the inputs are TTL compatible.
This range allows the device to be used to translate from 3.3 V to 5 V.
This device is fully specified for partial Power-down applications using IOFF
.
The IOFF circuitry disables the output, preventing the damaging backflow current through
the device when it is powered down.
2. Features and benefits
Direct interface with TTL levels
Supply voltage range from 4.5 V to 5.5 V
Typical tpd of 3.7 ns at 5 V
Typical VOL(p) < 0.8 V at VCC = 5 V, Tamb = 25 C
Typical VOH(v) > 2.3 V at VCC = 5 V, Tamb = 25 C
Supports mixed-mode voltage operation on all ports
IOFF circuitry provides partial Power-down mode operation
Latch-up performance exceeds 250 mA per JESD 78 Class II
ESD protection:
HBM ANSI/ESDA/JEDEC JS-001 Class 2 exceeds 3 kV
MM JESD22-A115-A exceeds 200 V
CDM JESD22-C101E exceeds 2 kV
Specified from 40 C to +85 C and from 40 C to +125 C
74AHCT14A
Nexperia
Hex inverting Schmitt trigger
3. Ordering information
Table 1.
Ordering information
Type number
Package
Temperature range Name
Description
Version
74AHCT14APW 40 C to +125 C
TSSOP14
plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
SOT402-1
4. Functional diagram
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Fig 1. Logic symbol
Fig 2. IEC logic symbol
Fig 3. Logic diagram
(one Schmitt-trigger)
5. Pinning information
5.1 Pinning
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Fig 4. Pin configuration TSSOP14
74AHCT14A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 26 October 2016
2 of 13
74AHCT14A
Nexperia
Hex inverting Schmitt trigger
5.2 Pin description
Table 2.
Symbol
Pin description
Pin
Description
1A, 2A, 3A, 4A, 5A, 6A
1, 3, 5, 9, 11, 13
data input
1Y, 2Y, 3Y, 4Y, 5Y, 6Y
2, 4, 6, 8, 10, 12
data output
ground (0 V)
supply voltage
GND
VCC
7
14
6. Functional description
Table 3.
Function table[1]
Input
nA
L
Output
nY
H
H
L
[1] H = HIGH voltage level;
L = LOW voltage level.
7. 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
VCC
VI
Parameter
Conditions
Min
0.5
0.5
0.5
0.5
20
20
-
Max
+7.0
+7.0
VCC + 0.5
+7.0
-
Unit
V
supply voltage
input voltage
output voltage
[1]
[2][3]
[2]
V
VO
output HIGH or LOW state
output power-down
VI < 0 V
V
V
IIK
input clamping current
output clamping current
output current
mA
mA
mA
mA
mA
C
IOK
IO
VO < 0 V
-
VO = 0 V to VCC
25
75
ICC
IGND
Tstg
Ptot
supply current
-
ground current
75
65
-
-
storage temperature
total power dissipation
+150
500
[4]
Tamb = 40 C to +125 C
mW
[1] If the input current ratings are observed, the minimum input voltage ratings may be exceeded.
[2] If the output current ratings are observed, the output voltage ratings may be exceeded.
[3] This value is limited to 7 V maximum.
[4] For TSSOP14 packages: above 75 C, the value of Ptot derates linearly at 7 mW/K.
74AHCT14A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 26 October 2016
3 of 13
74AHCT14A
Nexperia
Hex inverting Schmitt trigger
8. Recommended operating conditions
Table 5.
Recommended operating conditions
Voltages are referenced to GND (ground = 0 V).
Symbol
VCC
VI
Parameter
Conditions
Min
4.5
0
Typ
Max Unit
supply voltage
input voltage
output voltage
5.0
5.5
5.5
VCC
5.5
V
V
V
V
-
VO
output HIGH or LOW state
output power-down
0
-
0
-
+25
-
Tamb
ambient temperature
40
-
+125 C
ms/V
t/V
input transition rise and fall rate
VCC = 5.0 V 0.5 V
1
9. Static characteristics
Table 6.
Static characteristics
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions
25 C
40 C to +85 C 40 C to +125 C Unit
Min Typ Max
Min
Max
1.9
Min
Max
1.9
VT+
positive-going VCC = 4.5 V
-
-
-
-
1.9
2.1
-
-
-
-
V
V
threshold
VCC = 5.5 V
2.1
2.1
voltage
VT
negative-going VCC = 4.5 V
threshold
voltage
0.5
0.6
-
-
-
-
0.5
0.6
-
-
0.5
0.6
-
-
V
V
V
CC = 5.5 V
VH
hysteresis
voltage
VCC = 4.5 V
0.4
0.4
-
-
1.4
1.5
0.4
0.4
1.4
1.5
0.4
0.4
1.4
1.5
V
V
VCC = 5.5 V
VOH
HIGH-level
output voltage
VI = VIH or VIL; VCC = 4.5 V
IO = 50 A
4.4
4.5
-
-
-
4.4
3.8
-
-
4.4
3.7
-
-
V
V
IO = 8 mA
3.94
VOL
LOW-level
output voltage
VI = VIH or VIL; VCC = 4.5 V
IO = 50 A
-
-
-
0
-
0.1
0.36
0.5
-
-
-
0.1
0.44
5
-
-
-
0.1
0.55
5
V
IO = 8 mA
V
IOFF
power-off
leakage
current
VI or VO = GND to 5.5 V;
VCC = 0 V
-
A
II
input leakage VI = VCC or GND;
current CC = 0 V to 5.5 V
-
-
-
-
-
-
0.1
2
-
-
-
1
20
-
-
-
1
20
A
A
mA
V
ICC
ICC
supply current VI = VCC or GND; IO = 0 A;
VCC = 5.5 V
additional
per input pin; VI = 3.4 V;
1.35
1.5
1.5
supply current IO = 0 A; other pins at VCC or
GND; VCC = 5.5 V
74AHCT14A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 26 October 2016
4 of 13
74AHCT14A
Nexperia
Hex inverting Schmitt trigger
9.1 Transfer characteristics waveforms
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Fig 5. Transfer characteristics
Fig 6. Transfer characteristics definitions
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a. VCC = 4.5 V
b. VCC = 5.5 V
Fig 7. Typical transfer characteristics
74AHCT14A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 26 October 2016
5 of 13
74AHCT14A
Nexperia
Hex inverting Schmitt trigger
10. Dynamic characteristics
Table 7.
Dynamic characteristics
GND = 0 V. For test circuit, see Figure 9.
Symbol Parameter Conditions
25 C
40 C to +85 C 40 C to +125 C Unit
Min Typ[1] Max
Min
Max
Min
Max
[2]
tpd
propagation nA to nY; see Figure 8
delay
VCC = 4.5 V to 5.5 V
CL = 15 pF
CL = 50 pF
-
-
-
3.7
5
7.6
9.6
6
1
1
-
9
11
6
1
1
-
9.7
11.9
6
ns
ns
pF
CI
input
VI = VCC or GND;
2
capacitance VCC = 5 V
CO
CPD
output
capacitance VCC = 5 V
VO = VCC or GND;
-
-
5
-
-
-
-
-
-
-
-
-
-
pF
pF
[3]
power
per buffer;
10
dissipation
CL = 0 pF; f = 10 MHz;
capacitance VI = GND to VCC
[1] Typical values are measured at Tamb = 25 C and VCC = 5 V.
[2] tpd is the same as tPLH and tPHL
.
[3]
CPD is used to determine the dynamic power dissipation PD (W).
PD = CPD VCC2 fi + (CL VCC2 fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in Volts.
74AHCT14A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 26 October 2016
6 of 13
74AHCT14A
Nexperia
Hex inverting Schmitt trigger
Table 8.
Noise characteristics
GND = 0 V. For test circuit, see Figure 9.
Symbol Parameter
Conditions
Tamb = 25 C
Unit
Min
Typ
Max
VCC = 5 V; CL = 50 pF
VOL(p)
VOL(v)
VOH(v)
VIH(AC)
VIL(AC)
LOW-level output voltage (peak)
LOW-level output voltage (valley)
HIGH-level output voltage (valley)
AC HIGH-level input voltage
AC LOW-level input voltage
-
0.4
0.2
4.5
-
0.8
V
V
V
V
V
0.8
-
-
-
2
-
-
-
0.8
11. Waveforms
9
,
9
0
9
0
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W
W
3+/
3/+
9
2+
9
0
9
0
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9
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2/
Measurement points are given in Table 9.
OL and VOH are typical voltage output levels that occur with the output load.
V
Fig 8. Propagation delay input (nA) to output (nY)
Table 9.
Input
VM
Measurement points
Output
VM
1.5 V
0.5VCC
74AHCT14A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 26 October 2016
7 of 13
74AHCT14A
Nexperia
Hex inverting Schmitt trigger
W
:
9
,
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9
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9
0
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U
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7
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Test data is given in Table 10.
Definitions test circuit:
RT = Termination resistance should be equal to output impedance Zo of the pulse generator
CL = Load capacitance including jig and probe capacitance
S1 = Test selection switch
Fig 9. Test circuit for measuring switching times
Table 10. Test data
Input
Load
Test
VI
tr, tf
CL
GND to 3 V
3.0 ns
15 pF, 50 pF
tPLH, tPHL
74AHCT14A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 26 October 2016
8 of 13
74AHCT14A
Nexperia
Hex inverting Schmitt trigger
12. Package outline
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Fig 10. Package outline SOT402-1 (TSSOP14)
74AHCT14A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 26 October 2016
9 of 13
74AHCT14A
Nexperia
Hex inverting Schmitt trigger
13. Abbreviations
Table 11. Abbreviations
Acronym
CDM
DUT
Description
Charge Device Model
Device Under Test
ESD
ElectroStatic Discharge
Human Body Model
Machine Model
HBM
MM
TTL
Transistor-Transistor Logic
14. Revision history
Table 12. Revision history
Document ID
74AHCT14A v.2
Modifications:
74AHCT14A v.1
Release date
20161026
Data sheet status
Change notice
Supersedes
Product data sheet
-
74AHCT14A v.1
• Type numbers 74AHCT14AD and 74AHCT14ABQ removed.
20160614 Product data sheet
-
-
74AHCT14A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 26 October 2016
10 of 13
74AHCT14A
Nexperia
Hex inverting Schmitt trigger
15. Legal information
15.1 Data sheet status
Document status[1][2]
Product status[3]
Development
Definition
Objective [short] data sheet
This document contains data from the objective specification for product development.
This document contains data from the preliminary specification.
This document contains the product specification.
Preliminary [short] data sheet Qualification
Product [short] data sheet Production
[1]
[2]
[3]
Please consult the most recently issued document before initiating or completing a design.
The term ‘short data sheet’ is explained in section “Definitions”.
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.nexperia.com.
Suitability for use — Nexperia products are not designed,
15.2 Definitions
authorized or warranted to be suitable for use in life support, life-critical or
safety-critical systems or equipment, nor in applications where failure or
malfunction of a Nexperia product can reasonably be expected
to result in personal injury, death or severe property or environmental
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inclusion and/or use of Nexperia products in such equipment or
applications and therefore such inclusion and/or use is at the customer’s own
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Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. Nexperia does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences of
use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is intended
for quick reference only and should not be relied upon to contain detailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local Nexperia sales
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full data sheet shall prevail.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. Nexperia makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Customers are responsible for the design and operation of their applications
and products using Nexperia products, and Nexperia
accepts no liability for any assistance with applications or customer product
design. It is customer’s sole responsibility to determine whether the Nexperia
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Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
Nexperia and its customer, unless Nexperia and
customer have explicitly agreed otherwise in writing. In no event however,
shall an agreement be valid in which the Nexperia product is
deemed to offer functions and qualities beyond those described in the
Product data sheet.
Nexperia does not accept any liability related to any default,
damage, costs or problem which is based on any weakness or default in the
customer’s applications or products, or the application or use by customer’s
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15.3 Disclaimers
Limited warranty and liability — Information in this document is believed to
be accurate and reliable. However, Nexperia does not give any
representations or warranties, expressed or implied, as to the accuracy or
completeness of such information and shall have no liability for the
consequences of use of such information. Nexperia takes no
responsibility for the content in this document if provided by an information
source outside of Nexperia.
the products or of the application or use by customer’s third party
customer(s). Nexperia does not accept any liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those given in
the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
In no event shall Nexperia be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation - lost
profits, lost savings, business interruption, costs related to the removal or
replacement of any products or rework charges) whether or not such
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contract or any other legal theory.
Terms and conditions of commercial sale — Nexperia
products are sold subject to the general terms and conditions of commercial
sale, as published at http://www.nexperia.com/profile/terms, unless otherwise
agreed in a valid written individual agreement. In case an individual
agreement is concluded only the terms and conditions of the respective
agreement shall apply. Nexperia hereby expressly objects to
applying the customer’s general terms and conditions with regard to the
purchase of Nexperia products by customer.
Notwithstanding any damages that customer might incur for any reason
whatsoever, Nexperia’s aggregate and cumulative liability towards
customer for the products described herein shall be limited in accordance
with the Terms and conditions of commercial sale of Nexperia.
Right to make changes — Nexperia reserves the right to make
changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
No offer to sell or license — Nothing in this document may be interpreted or
construed as an offer to sell products that is open for acceptance or the grant,
conveyance or implication of any license under any copyrights, patents or
other industrial or intellectual property rights.
74AHCT14A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 26 October 2016
11 of 13
74AHCT14A
Nexperia
Hex inverting Schmitt trigger
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
Nexperia’s specifications such use shall be solely at customer’s
own risk, and (c) customer fully indemnifies Nexperia for any
liability, damages or failed product claims resulting from customer design and
use of the product for automotive applications beyond Nexperia’s
standard warranty and Nexperia’s product specifications.
Non-automotive qualified products — Unless this data sheet expressly
states that this specific Nexperia product is automotive qualified,
the product is not suitable for automotive use. It is neither qualified nor tested
in accordance with automotive testing or application requirements. Nexperia
accepts no liability for inclusion and/or use of
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
non-automotive qualified products in automotive equipment or applications.
In the event that customer uses the product for design-in and use in
automotive applications to automotive specifications and standards, customer
(a) shall use the product without Nexperia’s warranty of the
product for such automotive applications, use and specifications, and (b)
whenever customer uses the product for automotive applications beyond
15.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
16. Contact information
For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
74AHCT14A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 26 October 2016
12 of 13
74AHCT14A
Nexperia
Hex inverting Schmitt trigger
17. Contents
1
2
3
4
General description. . . . . . . . . . . . . . . . . . . . . . 1
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
Ordering information. . . . . . . . . . . . . . . . . . . . . 2
Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2
5
5.1
5.2
Pinning information. . . . . . . . . . . . . . . . . . . . . . 2
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3
6
Functional description . . . . . . . . . . . . . . . . . . . 3
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 3
Recommended operating conditions. . . . . . . . 4
Static characteristics. . . . . . . . . . . . . . . . . . . . . 4
Transfer characteristics waveforms . . . . . . . . . 5
Dynamic characteristics . . . . . . . . . . . . . . . . . . 6
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Package outline . . . . . . . . . . . . . . . . . . . . . . . . . 9
Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 10
Revision history. . . . . . . . . . . . . . . . . . . . . . . . 10
7
8
9
9.1
10
11
12
13
14
15
Legal information. . . . . . . . . . . . . . . . . . . . . . . 11
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 11
Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 12
15.1
15.2
15.3
15.4
16
17
Contact information. . . . . . . . . . . . . . . . . . . . . 12
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
© Nexperia B.V. 2017. All rights reserved
For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
Date of release: 26 October 2016
相关型号：
74AHCT14BQ-G
Hex inverting Schmitt trigger - Description: Hex Inverter Schmitt-Trigger; TTL Enabled ; Logic switching levels: TTL ; Number of pins: 14 ; Output drive capability: +/- 8 mA ; Power dissipation considerations: Low Power ; Propagation delay: 4.0 ns; Voltage: 4.5-5.5 V
NXP
74AHCT14BQ-Q100
AHCT/VHCT/VT SERIES, HEX 1-INPUT INVERT GATE, PQCC14, 2.50 X 3 MM, 0.85 MM HEIGHT, PLASTIC, MO-241, SOT762-1, DHVQFN-14
NXP
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