Arm® Cortex®-M4|Kinetis KW2xD 2.4 GHz 32-bit MCUs | NXP Semiconductors

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

KW2xD Not Recommended for New Designs

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
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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

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Buy/Parametrics

4 results

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Part

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CAD Model

Core Type

Operating Frequency [Max] (MHz)

SRAM (kB)

Flash (kB)

UART

SPI

I2C

GPIO

Supply Voltage [Min to Max] (V)

MKW21D256VHA5
Data Sheet

Replacement part(s): JN5189HN

1 x Arm Cortex-M4

50

32

256

3

1

2

29

1.8 to 3.6

MKW21D512VHA5
Data Sheet

Replacement part(s): JN5189HN

1 x Arm Cortex-M4

50

64

512

3

1

2

29

1.8 to 3.6

MKW22D512VHA5
Data Sheet

Replacement part(s): JN5189HN

1 x Arm Cortex-M4

50

64

512

3

1

2

25

1.8 to 3.6

MKW24D512VHA5
Data Sheet

Replacement part(s): JN5189HN

1 x Arm Cortex-M4

50

64

512

3

1

2

25

1.8 to 3.6

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Application Note (16)
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Note: For better experience, software downloads are recommended on desktop.

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