Kinetis® KW2xD-2.4 GHz 802.15.4 Wireless Radio Microcontroller (MCU) based on Arm® Cortex®-M4 Core

KW2xD

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

The Kinetis® KW2xD wireless MCU provides a low-power, compact device with integrated IEEE 802.15.4 radio, targeting control and monitoring applications for home and building automation including appliances, access control, climate control, energy management, lighting, safety and security. The KW2xD supports Thread, a lightweight, low latency IPv6 mesh networking stack, specifically designed to meet the requirements of next generation wireless networks. More information on Thread can be found here

  • Provides enough memory to run complicated protocol stacks and user applications on a single IC
  • Protects code and data from unauthorized access or modification
  • Enables a set of specialized operations to improve throughput of encryption/decryption operations
  • Significantly reduces power consumption and extends battery life

Product Details

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Block Diagram

Kinetis W Series KW2x MCUs Block Diagram

Kinetis W Series KW2x MCUs Block Diagram
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Features

Processing Performance

  • Up to 50 MHz Arm® Cortex®-M4 core with 16-channel-DMA

Memory

  • 512 KB Flash and 64 KB RAM or
  • 256 KB Flash and 32 KB RAM with:
    • 64K FlexNVM (MKW21D256 only) and
    • 4k bytes of enhanced EEPROM/FlexRAM

Connectivity

  • SPI (1)
  • UART (2)
  • I²C (2)
  • USB FS OTG (KW22 and KW24)

Mixed Signal

  • 8-channel 16-bit SAR ADC
  • 6-bit DA

Security and tamper detect

  • Cryptography Acceleration Unit (CAU)
  • AES encryption (FIPS 140)
  • External tamper detect
  • 32-bit CRC

RF Features

  • Highly integrated 2.4 GHz RF transceiver
  • 802.15.4 Packet processor
  • Supports single ended and diversity antennas
  • Dual PAN support
  • Programmable output power -30 to +8 dBm
  • Sensitivity -102 dBm
  • TX 17mA @ 0dBm (CPU sleep)
  • RX 19mA (CPU sleep)

Low Power operation

  • 1.8 to 3.6 volts
  • Low-voltage detection
  • Multiple low power modes

System

  • Real-Time Clock (RTC)
  • In-circuit debug and Flash programming
  • Up to 24 GPIO
  • Multiple KBI
  • Operating temperature of –40°C to 105°C

Documentation

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Design Resources

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Design Files

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4 design files

  • Printed Circuit Boards and Schematics

    TWR-KW21D256 Reference Design

    ZIPRev CJan 14, 2014 00:00:008.5 MBTWR-KW21D256_PCBRD
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  • Printed Circuit Boards and Schematics

    TWR-KW24D512 Reference Design

    ZIPRev CJan 14, 2014 00:00:008.4 MBTWR-KW24D512_PCBRD
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  • Printed Circuit Boards and Schematics

    USB-KW24D512 Reference Design

    ZIPRev BJul 17, 2014 00:00:003.7 MBUSB-KW24D512_PCBRD
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  • Symbols and Footprints

    Kinetis® Symbols, Footprints and Models

    INTERNALRev 1.0Nov 27, 2017 11:23:001 KBCAD-SYMBOLFOOTPRINTS
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Hardware

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Software

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

Engineering Services

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To find a complete list of our partners that support this product, please see our Partner Marketplace.

Training

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