1. General description
The 74LV14 is a low-voltage Si-g ate CMOS device that is pin and function comp atible with
74HC14 and 74HCT14.
The 74LV14 provides six inverting buffers with Schmitt-trigger input. It is cap able of
transforming slowly-changing input signals into sharply defined, jitter-free output signals.
The inputs switch at dif ferent points for positive and ne gative-going signals. The dif ference
between the po sit ive vo ltage VT+ and the negative voltage VT is defined as the input
hysteresis voltage VH.
2. Features and benefits
Wide operating voltage: 1.0 V to 5.5 V
Optimized for low voltage applications: 1.0 V to 3.6 V
Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
Typical output ground bounce < 0.8 V at VCC = 3.3 V and Tamb = 25 C
Typical HIGH-level output vo ltage (VOH) undershoot: > 2 V at VCC = 3.3 V and
Tamb = 25 C
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from 40 Cto+85C and from 40 Cto+125C
3. Applications
Wave and pulse shapers for hig hly noisy environments
Astable multivibrators
Monostable multivibrators
74LV14
Hex inverting Schmitt trigger
Rev. 7 — 9 December 2015 Product data sheet
© Nexperia B.V. 2017. All rights reserved
74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 2 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
4. Ordering information
5. Functional diagram
Tabl e 1. Ordering information
Type number Package
Tempe rature range Name Description Version
74LV14D 40 Cto+125C SO14 plastic small outline package; 14 leads;
body width 3.9 mm SOT108-1
74LV14DB 40 Cto+125C SSOP14 plastic shrink small ou tline package; 14 leads;
body width 5.3 mm SOT337-1
74LV14PW 40 Cto+125C TSSOP14 plastic thin shrink small outline package; 14 leads;
body width 4.4 mm SOT402-1
74LV14BQ 40 Cto+125C DHVQFN14 plastic dual in-line compatible thermal enhanced very
thin quad flat package; no leads; 14 terminals;
body 2.5 30.85 mm
SOT762-1
Fig 1. Logic symbol Fig 2. IEC logic symbol Fig 3. Logic diagram for one
Schmitt trigger
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© Nexperia B.V. 2017. All rights reserved
74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 3 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
6. Pinning information
6.1 Pinning
6.2 Pin description
(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 VCC.
Fig 4. Pin configuration SO14 and (T)SSOP14 Fig 5. Pin configuration DHVQFN14
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Table 2. Pin description
Symbol Pin Description
1A 1 data input
1Y 2 data output
2A 3 data input
2Y 4 data output
3A 5 data input
3Y 6 data output
GND 7 ground (0 V)
4Y 8 data output
4A 9 data input
5Y 10 data output
5A 11 data input
6Y 12 data output
6A 13 data input
VCC 14 supply voltage
© Nexperia B.V. 2017. All rights reserved
74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 4 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
7. Functional description
8. Limiting values
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2] Ptot derates linearly with 8 mW/K above 70 C.
[3] Ptot derates linearly with 5.5 mW/K above 60 C.
[4] Ptot derates linearly with 4.5 mW/K above 60 C.
9. Recommended operating conditions
[1] The static characteristics are guaranteed from VCC = 1.2 V to VCC = 5.5 V, but LV devices are guaranteed to function down to
VCC = 1.0 V (with input levels GND or VCC).
Table 3. Function table
H = HIGH voltage level; L = LOW voltage level.
Input nA Output nY
LH
HL
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions Min Max Unit
VCC supply voltage 0.5 +7.0 V
IIK input clamping current VI < 0.5 V or VI>V
CC +0.5V [1] -20 mA
IOK output clamping current VO<0.5 V or VO>V
CC +0.5V [1] -50 mA
IOoutput curren t VO = 0.5 V to (VCC +0.5V) - 25 mA
ICC supply current - 50 mA
IGND ground current 50 - mA
Tstg storage temperature 65 +150 C
Ptot total power dissipation Tamb = 40 C to +125 C
SO14 package [2] -500mW
(T)SSOP14 package [3] -500mW
DHVQFN14 package [4] -500mW
Table 5. Recommended operating conditions
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions Min Typ Max Unit
VCC supply voltage [1] 1.0 3.3 5.5 V
VIinput voltage 0 - VCC V
VOoutput voltage 0 - VCC V
Tamb ambient temperature 40 +25 +125 C
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74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 5 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
10. Static characteristics
[1] Typical values are measured at Tamb = 25 C.
Table 6. Static characteristics
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions Tamb = 40 C to +85 C Tamb = 40 C
to +125 CUnit
Min Typ[1] Max Min Max
VOH HIGH-level output voltage VI= VT+ or VT
IO = 100 A; VCC = 1.2 V - 1.2 - - - V
IO = 100 A; VCC = 2.0 V 1.8 2.0 - 1.8 - V
IO = 100 A; VCC = 2.7 V 2.5 2.7 - 2.5 - V
IO = 100 A; VCC = 3.0 V 2.8 3.0 - 2.8 - V
IO = 100 A; VCC = 4.5 V 4.3 4.5 - 4.3 - V
IO = 6 mA; VCC = 3.0 V 2.4 2.82 - 2.2 - V
IO = 12 mA; VCC = 4.5 V 3.6 4.2 - 3.5 - V
VOL LOW-level output voltage VI= VT+ or VT
IO = 100 A; VCC = 1.2 V - 0 - - - V
IO = 100 A; VCC = 2.0 V - 0 0.2 - 0.2 V
IO = 100 A; VCC = 2.7 V - 0 0.2 - 0.2 V
IO = 100 A; VCC = 3.0 V - 0 0.2 - 0.2 V
IO = 100 A; VCC = 4.5 V - 0 0.2 - 0.2 V
IO = 6 mA; VCC = 3.0 V - 0.25 0.40 - 0.50 V
IO = 12 mA; VCC = 4.5 V - 0.35 0.55 - 0.65 V
IIinput leakage current VI=V
CC or GND;
VCC =5.5V - - 1.0 - 1.0 A
ICC supply current VI = VCC or GND; IO = 0 A;
VCC =5.5V - - 20.0 - 40 A
ICC additional supply current per input; VI = VCC 0.6 V;
VCC = 2.7 V to 3.6 V --500-850A
CIinput capacitance - 3.5 - - - pF
© Nexperia B.V. 2017. All rights reserved
74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 6 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
11. Dynamic characteristics
[1] All typical values are measured at Tamb =25C.
[2] tpd is the same as tPLH and tPHL.
[3] Typical values are measured at nominal supply voltage (VCC = 3.3 V).
[4] CPD is used to determine the dynamic power dissipation (PDin W).
PD=C
PD VCC2fiN+(CLVCC2fo) where:
fi= input frequency in MHz, fo= output frequency in MHz
CL= output load capacitance in pF
VCC = supply voltage in V
N = number of inputs switching
(CLVCC2fo) = sum of the outputs.
12. Waveforms
Table 7. Dynamic characteristics
GND = 0 V; For test circuit see Figure 7.
Symbol Parameter Conditions Tamb = 40 C
to +85 CTamb = 40 C
to +125 CUnit
Min Typ[1] Max Min Max
tpd propagation delay nA to nY; see Figure 6 [2]
VCC = 1.2 V - 80 - - - ns
VCC = 2.0 V - 27 37 - 48 ns
VCC = 2.7 V - 20 28 - 35 ns
VCC = 3.0 V to 3.6 V; CL=15pF [3] -13- - -ns
VCC = 3.0 V to 3.6 V [3] - 15 22 - 28 ns
VCC = 4.5 V to 5.5 V - - 18 - 23 ns
CPD power dissipation
capacitance CL=50pF; f
i = 1 MHz;
VI=GNDtoV
CC
[4] -15- - -pF
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 6. The input (nA) to output (nY) propagation delays
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74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 7 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
13. Transfer characteristics
Table 8. Measurement points
Supply voltage Input Output
VCC VMVM
< 2.7 V 0.5VCC 0.5VCC
2.7 V to 3.6 V 1.5 V 1.5 V
4.5 V 0.5VCC 0.5VCC
Test data is given in Table 9.
Definitions test circuit:
RT = Termination resistance should be equal to output impedance Zo of the pulse generator.
RL = Load resistance.
CL = Load capacitance including jig and probe capacitance.
Fig 7. Test circuit for measuring switching times
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Table 9. Test data
Supply voltage Input
VCC VItr, tf
< 2.7 V VCC 2.5 ns
2.7 V to 3.6 V 2.7 V 2.5 ns
4.5 V VCC 2.5 ns
Table 10. Transfer characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V); see Figure 8 and Figure 9.
Symbol Parameter Conditions Tamb = 40 C
to +85 CTamb = 40 C
to +125 CUnit
Min Typ[1] Max Min Max
VT+ positive-going
threshold vo ltage VCC = 1.2 V - 0.70 - - - V
VCC = 2.0 V 0.8 1.10 1.4 0.8 1.4 V
VCC = 2.7 V 1.0 1.45 2.0 1.0 2.0 V
VCC = 3.0 V 1.2 1.60 2.2 1.2 2.2 V
VCC = 3.6 V 1.5 1.95 2.4 1.5 2.4 V
VCC = 4.5 V 1.7 2.50 3.15 1.7 3.15 V
VCC = 5.5 V 2.1 3.00 3.85 2.1 3.85 V
© Nexperia B.V. 2017. All rights reserved
74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 8 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
[1] All typical values are measured at Tamb =25C.
14. Waveforms transfer characteristics
VTnegative-going
threshold vo ltage VCC = 1.2 V - 0.34 - - - V
VCC = 2.0 V 0.3 0.65 0.9 0.3 0.9 V
VCC = 2.7 V 0.4 0.90 1.4 0.4 1.4 V
VCC = 3.0 V 0.6 1.05 1.5 0.6 1.5 V
VCC = 3.6 V 0.8 1.30 1.8 0.8 1.8 V
VCC = 4.5 V 0.9 1.60 2.0 0.9 2.0 V
VCC = 5.5 V 1.1 2.00 2.6 1.1 2.6 V
VHhysteresis voltage VCC = 1.2 V - 0.3 - - - V
VCC = 2.0 V 0.2 0.55 0.8 0.2 0.8 V
VCC = 2.7 V 0.3 0.60 1.1 0.3 1.1 V
VCC = 3.0 V 0.4 0.65 1.2 0.4 1.2 V
VCC = 3.6 V 0.4 0.70 1.2 0.4 1.2 V
VCC = 4.5 V 0.4 0.80 1.4 0.4 1.4 V
VCC = 5.5 V 0.6 1.00 1.5 0.6 1.5 V
Table 10. Transfer characteristics …continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V); see Figure 8 and Figure 9.
Symbol Parameter Conditions Tamb = 40 C
to +85 CTamb = 40 C
to +125 CUnit
Min Typ[1] Max Min Max
VT+ and VT limits at 70 % and 20 %.
Fig 8. Transfer characteristic Fig 9. Defin ition of VT+, VT and VH
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74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 9 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
VCC = 1.2 V. VCC = 2.0 V.
Fig 10. Typica l 74LV14 transfer characteristic s Fig 11. Typical 74LV14 transfer characteristics
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Fig 12. Typical 74LV14 tran sfer characteristics
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© Nexperia B.V. 2017. All rights reserved
74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 10 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
15. Application information
The slow input rise and fall times cause additional power dissipation, this can be
calculated using the following formula:
Padd =f
i(trICC(AV) +t
fICC(AV))VCC where:
Padd = additional power dissipation (W);
fi= input frequency (MHz);
tr=rise time (ns); 10%to90%;
tf= fall time (ns); 90 % to 10 %;
ICC(AV) = average additional supply current (A).
Average ICC(AV) differs with positive or negative input transitions, as shown in Figure 13.
An example of a relaxation circuit using the 74LV14 is shown in Figure 14.
(1) Positive-going edge.
(2) Negative-going edge.
Fig 13. Average additional supply current as a function of VCC
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© Nexperia B.V. 2017. All rights reserved
74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 11 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
16. Package outline
Fig 15. Package outline SOT108-1 (SO14)
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© Nexperia B.V. 2017. All rights reserved
74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 12 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
Fig 16. Package outline SOT337-1 (SSOP14)
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© Nexperia B.V. 2017. All rights reserved
74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 13 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
Fig 17. Package outline SOT402-1 (TSSOP14)
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© Nexperia B.V. 2017. All rights reserved
74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 14 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
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© Nexperia B.V. 2017. All rights reserved
74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 15 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
17. Abbreviations
18. Revision history
Table 11. Abbreviations
Acronym Description
CMOS Complementary Metal Oxide Semiconductor
DUT Device Under Test
ESD ElectroStatic Dis charge
HBM Human Body Model
MM Machine Model
TTL Transistor-Transistor Logic
Table 12. Revision history
Document ID Release date Data sheet status Change notice Supersedes
74LV14 v.7 20151209 Product data sheet - 74LV14 v.6
Modifications: •Type number 74LV14N (SOT27-1) removed.
74LV14 v.6 20111212 Product data sheet - 74LV14 v.5
Modifications: •Legal pages updated.
74LV14 v.5 20110105 Product data sheet - 74LV14 v.4
74LV14 v.4 20090702 Product data sheet - 74LV14 v.3
74LV14 v.3 20071220 Product data sheet - 74LV14 v.2
74LV14 v.2 19980420 Product specification - 74LV14 v.1
74LV14 v.1 19970203 Product specification - -
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74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 16 of 18
Nexperia 74LV14
Hex inverting Schmitt trigger
19. Legal information
19.1 Data sheet status
[1] Please consult the most recently issued document before initiating or completing a design.
[2] The term ‘short data sheet’ is explained in section “Definitions”.
[3] The product status of de vice(s) descr ibed in th is document m ay have cha nged since thi s document w as publish ed and may di ffe r in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.nexperia.com.
19.2 Definitions
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 liab ility 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 tit le. A short data sh eet is intended
for quick reference only and shou ld not b e relied u pon to cont ain det ailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local Nexperia sales
office. In case of any inconsistency or conflict with the short data sheet, the
full data sheet shall pre va il.
Product specificat io n — 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 off er functions and qualities beyond those described in the
Product data sheet.
19.3 Disclaimers
Limited warr a nty and liability — Information in this document is believed to
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representations or warrant ies, expressed or implied, as to the accuracy or
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Notwithstanding any damages that customer might incur for any reason
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Right to make changes — Nexperia reserves the right to make
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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 ope ration 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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Nexperia does not accept any liability related to any default,
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customer’s applications or products, or the application or use by custo mer’s
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the products or of the application or use by customer’s third p arty
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.
Terms and conditions of commercial sale — Nexperia
products are sold subject to the general terms and conditions of commercial
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applying the customer’s general terms and conditions with regard to the
purchase of Nexperia products by customer.
No offer to sell or license — Nothing i n this document may be interpreted or
construed as an of fer t o sell product s that is open for accept ance or the gr ant,
conveyance or implication of any license under any copyrights, patents or
other industrial or inte llectual property rights.
Document status[1][2] Product status[3] Definition
Objective [short] data sheet Development This document contain s data from the objective specification for product development.
Preliminary [short] dat a sheet Qualification This document contains data from the preliminary specification.
Product [short] data sheet Production This document contains the product specification.
© Nexperia B.V. 2017. All rights reserved
74LV14 All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 7 — 9 December 2015 17 of 18
Nexperia 74LV14
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.
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 i s neither qua lified nor tested
in accordance with automotive testing or application requirements. Nexperia
accepts no liability for inclusion and/or use of
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 automot ive specifications and standards, custome r
(a) shall use the product without Nexperia’s warranty of the
product for such au tomotive applications, use and specifications, and (b)
whenever customer uses the product for automotive applications beyond
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 custome r design and
use of the product for automotive applications beyond Nexperia’s
standard warranty and Nexperia’s product specifications.
Translations — A non-En glish (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.
19.4 Trademarks
Notice: All referenced b rands, produc t names, service names and trademarks
are the property of their respective ow ners.
20. Contact information
For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
Nexperia 74LV14
Hex inverting Schmitt trigger
21. Contents
1 General description. . . . . . . . . . . . . . . . . . . . . . 1
2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1
3 Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
4 Ordering information. . . . . . . . . . . . . . . . . . . . . 2
5 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2
6 Pinning information. . . . . . . . . . . . . . . . . . . . . . 3
6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3
7 Functional description . . . . . . . . . . . . . . . . . . . 4
8 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 4
9 Recommended operating conditions. . . . . . . . 4
10 Static characteristics. . . . . . . . . . . . . . . . . . . . . 5
11 Dynamic characteristics . . . . . . . . . . . . . . . . . . 6
12 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
13 Transfer characteristics . . . . . . . . . . . . . . . . . . 7
14 Waveforms transfer characteristics. . . . . . . . . 8
15 Application information. . . . . . . . . . . . . . . . . . 10
16 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 11
17 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 15
18 Revision history. . . . . . . . . . . . . . . . . . . . . . . . 15
19 Legal information. . . . . . . . . . . . . . . . . . . . . . . 16
19.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 16
19.2 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
19.3 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 16
19.4 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 17
20 Contact information. . . . . . . . . . . . . . . . . . . . . 17
21 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
© 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:
09 December 2015
