STKNX

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Product overview

Description

The STKNX is a transceiver device for KNX TP communication. The small package and few external components enable very compact KNX node design.

The simple interface to the microcontroller allows easy replacement of physical layer discrete component implementations.

The STKNX device features two integrated voltage regulators for external use in the application: the selectable 3.3 V / 5 V - 20 mA linear regulator and the adjustable 1 V to 12 V - 150 mA high-efficiency DC/DC step down switching converter.

The integrated KNX bus power extractor supports bus current up to 30 mA to power external devices and the STKNX transceiver's own power needs, while limiting the bus current slew rate according to KNX specifications.

The STKNX ensures safe coupling to the bus and provides the bus monitoring warning for the loss of bus power.

All features
Very thin fine pitch 4 x 4 mm VQFNPN24 package

KNX certified, KNX TP1-256 supported

Easy interface to microcontroller

Very small system solution

Two integrated voltage regulators for external use in application

Selectable 3.3 V / 5 V - 20 mA linear regulator

Adjustable 1 V to 12 V - 150 mA high- efficiency DC/DC step down switching converter

KNX bus power extractor supporting bus current up to 30 mA

Adjustable KNX bus current slew rate dI/dt

No crystal required

Operating temperature range -40 °C to +85 °C
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	Part number	Status	Description	Type	Supplier
Worldwide,Asia,Europe,Africa,North America,South America,Oceania,Afghanistan,Bahrain,Bangladesh,Bhutan,Brunei,Burma (Myanmar),Cambodia,China,East Timor,India,Indonesia,Iraq,Japan,Jordan,Kazakhstan,Kuwait,Kyrgyzstan,Laos,Malaysia,Maldives,Mongolia,Nepal,Oman,Pakistan,Philippines,Qatar,Russian Federation,Saudi Arabia,Singapore,South Korea,Sri Lanka,Taiwan,Tajikistan,Thailand,Turkmenistan,United Arab Emirates,Uzbekistan,Vietnam,Yemen,Albania,Andorra,Armenia,Austria,Azerbaijan,Belarus,Belgium,Bosnia and Herzegovina,Bulgaria,Croatia,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Georgia,Germany,Greece,Hungary,Iceland,Ireland,Israel,Italy,Latvia,Liechtenstein,Lithuania,Luxembourg,Macedonia,Malta,Moldova,Monaco,Montenegro,Netherlands,Norway,Poland,Portugal,Romania,San Marino,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,Turkey,Ukraine,United Kingdom,Vatican City,Algeria,Angola,Benin,Botswana,Burkina,Burundi,Cameroon,Cape Verde,Central African Republic,Chad,Comoros,Democratic Republic of Congo,Djibouti,Egypt,Equatorial Guinea,Eritrea,Ethiopia,Gabon,Gambia,Ghana,Guinea,Guinea-Bissau,Ivory Coast,Kenya,Lesotho,Liberia,Libya,Madagascar,Malawi,Mali,Mauritania,Mauritius,Morocco,Mozambique,Namibia,Niger,Nigeria,Rwanda,Sao Tome and Principe,Senegal,Seychelles,Sierra Leone,Somalia,South Africa,Swaziland,Tanzania,Togo,Tunisia,Uganda,Zambia,Zimbabwe,Antigua and Barbuda,Bahamas,Barbados,Belize,Canada,Costa Rica,Dominica,Dominican Republic,El Salvador,Grenada,Guatemala,Haiti,Honduras,Jamaica,Mexico,Nicaragua,Panama,Saint Kitts and Nevis,Saint Lucia,Saint Vincent and the Grenadines,Trinidad and Tobago,United States,Argentina,Bolivia,Brazil,Chile,Colombia,Ecuador,Guyana,Paraguay,Peru,Suriname,Uruguay,Venezuela,Australia,Fiji,Kiribati,Marshall Islands,Micronesia,Nauru,New Zealand,Palau,Papua New Guinea,Samoa,Solomon Islands,Tonga,Tuvalu,Vanuatu	EVALKITSTKNX	Active	Miniature transceiver STKNX evaluation and development kit	Communication and Connectivity Solution Eval Boards	ST	EVALKITSTKNX Description: Miniature transceiver STKNX evaluation and development kit

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	Resource title	Version	Latest update

Product Specifications (1)

	Resource title	Version	Latest update
PDF	DS12399 Miniature KNX transceiver with voltage regulators and microcontroller support	3.0	31 May 2021	31 May 2021 DS12399 Miniature KNX transceiver with voltage regulators and microcontroller support 3.0

Application Notes (1)

	Resource title	Version	Latest update
PDF	AN5603 ST G3-PLC Hybrid solution	1.2	22 Feb 2022	22 Feb 2022 AN5603 ST G3-PLC Hybrid solution 1.2

User Manuals (1)

	Resource title	Version	Latest update
PDF	UM2409 Quick start guide STKNX evaluation board (EVALKITSTKNX)	2.0	10 Jun 2020	10 Jun 2020 UM2409 Quick start guide STKNX evaluation board (EVALKITSTKNX) 2.0

Application Notes for related Tools & Software (1)

	Resource title	Version	Latest update
PDF	AN5274 EVALKITSTKNX user guide and performances report	3.0	13 Dec 2022	13 Dec 2022 AN5274 EVALKITSTKNX user guide and performances report 3.0

Flyers (2)

	Resource title	Version	Latest update
PDF	ST8500 Hybrid power line communication & RF development ecosystem	1.0	09 Feb 2021	09 Feb 2021 ST8500 Hybrid power line communication & RF development ecosystem 1.0
PDF	Tiny, efficient KNX bit transceiver for home and building control	1.0	06 Feb 2019	06 Feb 2019 Tiny, efficient KNX bit transceiver for home and building control 1.0

Brochures (1)

	Resource title	Version	Latest update
PDF	Electric vehicle (EV) ecosystem	1.1	02 Nov 2022	02 Nov 2022 Electric vehicle (EV) ecosystem 1.1

EDA Symbols, Footprints and 3D Models

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	Resource title	Version	Latest update

Schematic Pack (1)

	Resource title	Version	Latest update
ZIP	STKNX Reference Design	1.0	14 Nov 2019	14 Nov 2019 STKNX Reference Design 1.0

Quality and Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade	Material Declaration**
STKNX	Active	QFN-24L	Industrial	Ecopack2	PDF XML
STKNXTR	Active	QFN-24L	Industrial	Ecopack2	PDF XML

STKNX

Package:

QFN-24L

Material Declaration**:

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STKNXTR

Package:

QFN-24L

Material Declaration**:

PDF XML

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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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STKNX

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EAR99

NEC

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STKNXTR

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EAR99

NEC

Tape and Reel

QFN-24L

PHILIPPINES

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STKNX Active

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QFN-24L

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EAR99

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STKNXTR Active

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QFN-24L

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EAR99

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No availability of distributors reported, please contact our sales office

Buy Direct at ST

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

Product overview

Description

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Solution Evaluation Tools

EVALKITSTKNX

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Product Specifications (1)

Application Notes (1)

User Manuals (1)

Application Notes for related Tools & Software (1)

Flyers (2)

Brochures (1)

EDA Symbols, Footprints and 3D Models

All resources

Schematic Pack (1)

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