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

KW20Z

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
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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

MCUXpresso Software and Tools

MCUXpresso Config Tools – A comprehensive suite of system configuration tools, including pins, clocks, SDK builder and more.

MCUXpresso SDK – An open-source software development kit (SDK) built specifically for your processor and evaluation board selections.

MCUXpresso IDE – An easy-to-use integrated development environment (IDE) for creating, building, debugging, and optimizing your application.

Protocol Stacks

Connectivity Software

Kinetis Connectivity Software Version 1.0.1 includes the following components:

  • KW40Z Bluetooth® low energy v4.2 stack, v1.1.4
  • KW40Z IEEE® 802.15.4-2006/2011 MAC/PHY implementation v5.2.4
  • KW40Z Simple Media Access Controller (SMAC) v3.2.4
  • KW40Z-enabled Connectivity Framework

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    Kinetis® Symbols, Footprints and Models

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