Arm® Cortex®-M0+|Kinetis® KW20Z 2.4 GHz 32-bit MCUs | NXP Semiconductors

Automotive

Industrial

Consumer

Technologies

Kinetis® KW20Z-2.4 GHz 802.15.4 Wireless Radio Microcontroller based on Arm® Cortex®-M0+

KW20Z Not Recommended for New Designs

Note: JN5189/88T is preferred for any new new Zigbee®, Thread design. No new software releases planned

The KW20Z is an ultra low-power, highly-integrated single-chip device that enables IEEE® 802.15.4-2011 RF connectivity for portable, extremely low-power embedded systems. Applications include portable health care devices, access control, security systems, smart energy and home area networks.

The KW20Z Wireless MCU integrates a 2.4 GHz transceiver supporting O-QPSK modulations, an Arm® Cortex®-M0+ CPU, 160 KB Flash and 20 KB SRAM, 802.15.4 packet processor, hardware security and peripherals optimized to meet the requirements of the target applications.

Block Diagram

Kinetis W Series KW20Z MCUs Block Diagram

Kinetis<sup>&#174;</sup> W Series KW20Z MCUs Block Diagram
Get diagram PDF

Features

802.15.4 Radio

  • IEEE Std. 802.15.4-2011 Standard Compliant
  • Typical Receiver Sensitivity = -102 dBm
  • Programmable Transmitter Output Power up to +5 dBm

Core and Memories

  • Up to 48 MHz Arm® Cortex®-M0+ core
  • On-chip 160 KB Flash memory
  • On-chip 20 KB SRAM

Low Power Consumption and Operating Voltage Ranges

  • Nine low-power modes to provide power optimization based on application requirements
  • Typical Rx/Tx Current (DC/DC Enabled): 6.5 mA / 8.4 mA
  • Bypass Voltage: 1.71V to 3.6V
  • DCDC Converter Buck Configuration: 2.1V to 4.2V
  • DCDC Converter Boost Configuration: 0.9V to 1.795V

Analog modules

  • 16-bit Analog-to-Digital Converter (ADC)
  • 12-bit Digital-to-Analog Converter (DAC)
  • 6-bit High Speed Analog Comparator (CMP)

Security

  • AES-128 Accelerator (AESA), True Random Number Generator (TRNG)

Supported Software

  • 802.15.4 MAC and SMAC
  • Kinetis® Software Development Kit (SDK)
  • The FreeRTOS kernel and a bare-metal non-preemptive task scheduler

Comparison Table

Kinetis KW40Z Family Recommended Solutions

Part Number Wireless Connectivity Protocol Package Size Hardware Development Tool
MKW40Z160VHT4 Bluetooth Low Energy and IEEE 802.15.4 7 mm x 7 mm x 1 mm 48-pin Laminate QFN


FRDM-KW40Z
USB-KW40Z
MKW30Z160VHM4 Bluetooth Low Energy 5 mm x 5 mm x 1 mm 32-pin Laminate QFN
MKW20Z160VHT4 IEEE 802.15.4 7 mm x 7 mm x 1 mm 48-pin Laminate QFN

Buy/Parametrics

‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌

‌
‌
‌
‌
‌
‌
‌
‌

‌
‌
‌
‌
‌
‌
‌
‌

‌
‌
‌
‌
‌
‌
‌
‌

‌
‌
‌
‌
‌
‌
‌
‌

‌
‌
‌
‌
‌
‌
‌
‌

‌
‌
‌
‌
‌
‌
‌
‌

‌
‌
‌
‌
‌
‌
‌
‌

‌
‌
‌
‌
‌
‌
‌
‌

‌
‌
‌
‌
‌
‌
‌
‌

‌
‌
‌
‌
‌
‌
N true 0 PSPKW20Zen 6 Application Note Application Note t789 1 Data Sheet Data Sheet t520 1 Fact Sheet Fact Sheet t523 1 Reference Manual Reference Manual t877 1 User Guide User Guide t792 2 en_US 1 1 0 English The Kinetis KW40Z/30Z/20Z (KW40Z) wireless MCU family is the first multi-mode radio in the Kinetis portfolio. Integrating a Bluetooth&#174; Low Energy v4.1 and IEEE&#174; 802.15.4-2006 complaint modem, it can support both standards and run in concurrent mode. The KW40Z integrates a buck-boost DC/DC converter, supporting a wide range of operating voltages from 0.9V to 4.2V, which reduces the peak current in both receive and transmit mode down to 6.2 mA. At the same time it delivers excellent link budget that 1434142687064714380101 PSP 142.2 KB None None documents None 1434142687064714380101 /docs/en/fact-sheet/KNTSKW40ZFS.pdf 142249 /docs/en/fact-sheet/KNTSKW40ZFS.pdf KNTSKW40ZFS N N 2016-10-31 Kinetis KW40Z/30Z/20Z Wireless MCUs Fact Sheet /docs/en/fact-sheet/KNTSKW40ZFS.pdf /docs/en/fact-sheet/KNTSKW40ZFS.pdf Fact Sheet N Y 736675474163315314 2022-12-07 pdf N en Jun 12, 2015 Fact Sheet t523 Fact Sheet Fact Sheet Y N Kinetis KW40Z/30Z/20Z Wireless MCUs Fact Sheet false en_US en Data Sheet Data Sheet 1 2 1.2 English A Bluetooth&#174; Low Energy and IEEE&#174; 802.15.4 System on a Chip (SoC) Supports the following: MKW40Z160VHT4, MKW30Z160VHM4,&#13;&#10;MKW20Z160VHT4 1444708580516733306654 PSP 960.2 KB None None documents None 1444708580516733306654 /docs/en/data-sheet/MKW40Z160.pdf 960154 /docs/en/data-sheet/MKW40Z160.pdf MKW40Z160 documents N N 2018-05-01 MKW40Z/30Z/20Z Data Sheet /docs/en/data-sheet/MKW40Z160.pdf /docs/en/data-sheet/MKW40Z160.pdf Data Sheet N 980000996212993340 2022-12-07 pdf N en May 1, 2018 980000996212993340 Data Sheet Y N MKW40Z/30Z/20Z Data Sheet Reference Manual Reference Manual 1 3 1.4.1 English Bluetooth Low Energy and IEEE 802.15.4 System on a Chip (SoC)&#13;&#10;Reference Manual 1444709099388721128789 PSP 8.8 MB Registration without Disclaimer None documents Extended 1444709099388721128789 /secured/assets/documents/en/reference-manual/MKW40Z160RM.pdf 8801591 /secured/assets/documents/en/reference-manual/MKW40Z160RM.pdf MKW40Z160RM documents Y N 2018-05-01 MKW40Z/30Z/20Z Reference Manual /webapp/Download?colCode=MKW40Z160RM /secured/assets/documents/en/reference-manual/MKW40Z160RM.pdf Reference Manual N 500633505221135046 2023-06-18 pdf Y en Sep 28, 2022 500633505221135046 Reference Manual Y N MKW40Z/30Z/20Z Reference Manual Application Note Application Note 1 4 4 Y Chinese This application note lists board layout and antenna basics to aid in selecting the correct antenna type for your applicatio and avoid the typical layout mistakes. Additionally, several popular antennas are presented as possible solutions for some of the 802.15.4 and Bluetooth low energy applications. 1086357131907736459761zh PSP 14.2 MB None None documents None 1086357131907736459761 /docs/zh/application-note/AN2731.pdf 14194642 /docs/zh/application-note/AN2731.pdf AN2731 documents N N 2016-10-31 Compact Planar Antennas for 2.4 GHz Communication /docs/zh/application-note/AN2731.pdf /docs/zh/application-note/AN2731.pdf Application Note N 645036621402383989 /bundle/AN2731/page/topics/introduction.html 2024-12-20 zh Nov 11, 2020 645036621402383989 Application Note Y N 用于2.4 GHz通信的紧凑型平面天线 5.0 Y English https://docs.nxp.com/bundle/AN2731/page/topics/introduction.html With the introduction of many applications into the 2.4 GHz band for commercial and consumer use, antenna design has become a stumbling point for many customers. 1086357131907736459761 PSP 14.2 MB None None documents None 1086357131907736459761 /docs/en/application-note/AN2731.pdf 14194642 /docs/zh/application-note/AN2731.pdf /docs/en/application-note/AN2731.pdf AN2731 documents N N Y 2016-10-31 Compact Planar Antennas for 2.4 GHz Communication https://docs.nxp.com/bundle/AN2731/page/topics/introduction.html /docs/en/application-note/AN2731.pdf Application Note N 645036621402383989 /bundle/AN2731/page/topics/introduction.html /docs/en/application-note/AN2731.pdf 2024-12-20 14.2 MB pdf N en Nov 14, 2024 645036621402383989 Application Note Y N Compact Planar Antennas for 2.4 GHz Communication User Guide User Guide 2 5 0 English This user&#8217;s guide describes porting of software from the MKW40Z-based platforms to MKW30Z- and MKW20Z-based platforms. 1452670077099727583024 PSP 706.0 KB Registration without Disclaimer None documents Extended 1452670077099727583024 /secured/assets/documents/en/user-guide/MKWSWPUG.pdf 705990 /secured/assets/documents/en/user-guide/MKWSWPUG.pdf MKWSWPUG documents Y N 2016-10-31 Software Porting From MKW40Z to MKW30Z and MKW20Z Wireless MCUs /webapp/Download?colCode=MKWSWPUG /secured/assets/documents/en/user-guide/MKWSWPUG.pdf User Guide N 132339537837198660 2023-06-18 pdf Y en Jan 12, 2016 132339537837198660 User Guide Y N Software Porting From MKW40Z to MKW30Z and MKW20Z Wireless MCUs 6 2 English This manual describes the hardware for the FRDM-KW40Z development board. 1434739740341723947335 PSP 2.2 MB Registration without Disclaimer None documents Extended 1434739740341723947335 /secured/assets/documents/en/user-guide/FRDMKW40ZUG.pdf 2246796 /secured/assets/documents/en/user-guide/FRDMKW40ZUG.pdf FRDMKW40ZUG documents Y N 2016-10-31 FRDM-KW40Z Freescale Freedom Development Board /webapp/Download?colCode=FRDMKW40ZUG /secured/assets/documents/en/user-guide/FRDMKW40ZUG.pdf User Guide N 132339537837198660 2023-06-18 pdf Y en Oct 12, 2015 132339537837198660 User Guide Y N FRDM-KW40Z Freescale Freedom Development Board false 0 KW20Z downloads en true 1 Y PSP Application Note 1 2016-10-31 /bundle/AN2731/page/topics/introduction.html Nov 14, 2024 Application Note With the introduction of many applications into the 2.4 GHz band for commercial and consumer use, antenna design has become a stumbling point for many customers. /docs/zh/application-note/AN2731.pdf /docs/en/application-note/AN2731.pdf Y documents Y 2024-12-20 https://docs.nxp.com/bundle/AN2731/page/topics/introduction.html 645036621402383989 en None /docs/en/application-note/AN2731.pdf pdf 14.2 MB N 14.2 MB AN2731 1086357131907736459761 /docs/en/application-note/AN2731.pdf https://docs.nxp.com/bundle/AN2731/page/topics/introduction.html 1086357131907736459761 PSP 4 None English 14194642 None 645036621402383989 N Compact Planar Antennas for 2.4 GHz Communication /docs/en/application-note/AN2731.pdf documents Application Note N Y 5.0 N Compact Planar Antennas for 2.4 GHz Communication N Data Sheet 1 2018-05-01 May 1, 2018 Data Sheet A Bluetooth&#174; Low Energy and IEEE&#174; 802.15.4 System on a Chip (SoC) Supports the following: MKW40Z160VHT4, MKW30Z160VHM4,&#13;&#10;MKW20Z160VHT4 /docs/en/data-sheet/MKW40Z160.pdf documents 2022-12-07 /docs/en/data-sheet/MKW40Z160.pdf 980000996212993340 en None pdf N 960.2 KB MKW40Z160 1444708580516733306654 /docs/en/data-sheet/MKW40Z160.pdf 1444708580516733306654 PSP 2 None English 960154 None 980000996212993340 N MKW40Z/30Z/20Z Data Sheet /docs/en/data-sheet/MKW40Z160.pdf documents Data Sheet N Y 1.2 N MKW40Z/30Z/20Z Data Sheet N Fact Sheet 1 /docs/en/fact-sheet/KNTSKW40ZFS.pdf 2016-10-31 1434142687064714380101 PSP 1 Jun 12, 2015 Fact Sheet Fact Sheet The Kinetis KW40Z/30Z/20Z (KW40Z) wireless MCU family is the first multi-mode radio in the Kinetis portfolio. Integrating a Bluetooth&#174; Low Energy v4.1 and IEEE&#174; 802.15.4-2006 complaint modem, it can support both standards and run in concurrent mode. The KW40Z integrates a buck-boost DC/DC converter, supporting a wide range of operating voltages from 0.9V to 4.2V, which reduces the peak current in both receive and transmit mode down to 6.2 mA. At the same time it delivers excellent link budget that None /docs/en/fact-sheet/KNTSKW40ZFS.pdf English 142249 None Fact Sheet 2022-12-07 N /docs/en/fact-sheet/KNTSKW40ZFS.pdf Kinetis KW40Z/30Z/20Z Wireless MCUs Fact Sheet /docs/en/fact-sheet/KNTSKW40ZFS.pdf documents 736675474163315314 Fact Sheet N Y en None Y t523 pdf 0 N N Kinetis KW40Z/30Z/20Z Wireless MCUs Fact Sheet 142.2 KB KNTSKW40ZFS N 1434142687064714380101 Reference Manual 1 2018-05-01 Sep 28, 2022 Reference Manual Bluetooth Low Energy and IEEE 802.15.4 System on a Chip (SoC)&#13;&#10;Reference Manual /secured/assets/documents/en/reference-manual/MKW40Z160RM.pdf documents 2023-06-18 /webapp/Download?colCode=MKW40Z160RM 500633505221135046 en Extended pdf N 8.8 MB MKW40Z160RM 1444709099388721128789 /secured/assets/documents/en/reference-manual/MKW40Z160RM.pdf 1444709099388721128789 PSP 3 Registration without Disclaimer English 8801591 None 500633505221135046 Y MKW40Z/30Z/20Z Reference Manual /secured/assets/documents/en/reference-manual/MKW40Z160RM.pdf documents Reference Manual N Y 1.4.1 Y MKW40Z/30Z/20Z Reference Manual N User Guide 2 2016-10-31 Jan 12, 2016 User Guide This user&#8217;s guide describes porting of software from the MKW40Z-based platforms to MKW30Z- and MKW20Z-based platforms. /secured/assets/documents/en/user-guide/MKWSWPUG.pdf documents 2023-06-18 /webapp/Download?colCode=MKWSWPUG 132339537837198660 en Extended pdf N 706.0 KB MKWSWPUG 1452670077099727583024 /secured/assets/documents/en/user-guide/MKWSWPUG.pdf 1452670077099727583024 PSP 5 Registration without Disclaimer English 705990 None 132339537837198660 Y Software Porting From MKW40Z to MKW30Z and MKW20Z Wireless MCUs /secured/assets/documents/en/user-guide/MKWSWPUG.pdf documents User Guide N Y 0 Y Software Porting From MKW40Z to MKW30Z and MKW20Z Wireless MCUs N 2016-10-31 Oct 12, 2015 User Guide This manual describes the hardware for the FRDM-KW40Z development board. /secured/assets/documents/en/user-guide/FRDMKW40ZUG.pdf documents 2023-06-18 /webapp/Download?colCode=FRDMKW40ZUG 132339537837198660 en Extended pdf N 2.2 MB FRDMKW40ZUG 1434739740341723947335 /secured/assets/documents/en/user-guide/FRDMKW40ZUG.pdf 1434739740341723947335 PSP 6 Registration without Disclaimer English 2246796 None 132339537837198660 Y FRDM-KW40Z Freescale Freedom Development Board /secured/assets/documents/en/user-guide/FRDMKW40ZUG.pdf documents User Guide N Y 2 Y FRDM-KW40Z Freescale Freedom Development Board N true Y Products

Documentation

Quick reference to our documentation types.

Filters

6 documents

Compact List

Application Note (1)
Data Sheet (1)
Fact Sheet (1)
Reference Manual (1)
User Guide (2)

Design Files

Quick reference to our design files types.
Filters

1 design file

  • Symbols and Footprints

    Kinetis® Symbols, Footprints and Models

    INTERNALRev 1.0Nov 27, 20171 KBCAD-SYMBOLFOOTPRINTS
    Download

Hardware

Quick reference to our board types.
Filters

1-5 of 8 hardware offerings

Show All

Software

Quick reference to our software types.

Filters

2 software files

Note: For better experience, software downloads are recommended on desktop.

Engineering Services

1-5 of 8 engineering services

Show All

To find additional partner offerings that support this product, visit our Partner Marketplace.

Training

Filters

1 training

To find additional partner offerings that support this product, visit our Partner Marketplace.