Miniature KNX transceiver with voltage regulators

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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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Related Applications

Industrial

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      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

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STKNX

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Quality and Reliability

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

STKNX

Package:

QFN-24L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

QFN-24L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STKNXTR

Package:

QFN-24L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

QFN-24L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
STKNX Available at 1 distributors

Distributor availability ofSTKNX

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2 1 Order Now

Distributor reported inventory date: 2021-09-27

Distributor Name

MOUSER

Stock

2

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-09-27

Buy Direct
Active
EAR99 NEC Tray QFN-24L - - PHILIPPINES 2.2064 / 1k
STKNXTR Available at 2 distributors

Distributor availability ofSTKNXTR

Distributor Name
Region Stock Min. Order Third party link
Newark Element14 AMERICA 414 0 Order Now
Farnell Element14 EUROPE 326 1 Order Now

Distributor reported inventory date: 2021-09-27

Distributor Name

Newark Element14

Stock

414

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

326

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-27

Active
EAR99 NEC Tape And Reel QFN-24L - - PHILIPPINES 2.2064 / 1k

STKNX

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.2064 / 1k

Distributor availability ofSTKNX

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2 1 Order Now

Distributor reported inventory date: 2021-09-27

Distributor Name

MOUSER

Stock

2

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-09-27

ECCN (EU)

NEC

Packing Type

Tray

Package

QFN-24L

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

2.2064 / 1k

Country of Origin

PHILIPPINES

STKNXTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.2064 / 1k

Distributor availability ofSTKNXTR

Distributor Name
Region Stock Min. Order Third party link
Newark Element14 AMERICA 414 0 Order Now
Farnell Element14 EUROPE 326 1 Order Now

Distributor reported inventory date: 2021-09-27

Distributor Name

Newark Element14

Stock

414

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

326

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-27

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

QFN-24L

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

2.2064 / 1k

Country of Origin

PHILIPPINES

(*) 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