NXP Semiconductors MCU Kinetis W

Los MCU inalámbricos Kinetis KW2x de Freescale amplían la exitosa familia de MCU Kinetis basada en el núcleo de CPU ARM Cortex-M4. El Kinetis KW2x integra un transceptor RF de 2,4 GHz líder de su clase, un núcleo ARM Cortex-M4 y un sólido conjunto de funciones para obtener una solución inalámbrica IEEE 802.15.4 fiable, segura y de bajo consumo. Estos MCU inalámbricos ofrecen hasta 512 KB de flash, 64 KB de RAM y hasta 64 KB de FlexMemory. La compatibilidad con PAN dual permite al sistema participar simultáneamente en dos redes ZigBee, lo que elimina la necesidad de varias radios. Las pilas de protocolos de software, herramientas e IDE son compatibles con los MCU Kinetis. El software del protocolo ZigBee se integra perfectamente en herramientas de desarrollo de software de Kinetis para una rápida creación de sistemas embebidos. Entre las aplicaciones típicas se incluyen redes de área local, compuestas de medidores, pasarelas, pantallas internas y aparatos conectados, y también aplicaciones de control de edificios y automatización de hogares con control de iluminación, sistemas de calefacción, refrigeración y aire acondicionado (HVAC) y seguridad.

Vídeos

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Características

  • KW0x Features
    • RF Transceiver
      • Supports 290-340MHz, 424-510MHz, and 862-1020MHz frequency bands
      • High sensitivity: down to -120dBm at 1.2kbps
      • High selectivity: 80dB blocking immunity
      • Low current: Rx = 16mA
      • Programmable output: -18 to +17dBm in 1dB steps
      • FSK bit rates up to 600kbps
      • FSK, GFSK, MSK, GMSK and OOK modulations
      • Packet engine with CRC, AES-128 encryption and 66-byte FIFO
      • Built-in temperature sensor and low battery indicator
    • MCU
      • Ultra-low-power 32-bit ARM® Cortex®-M0+ core. 2x more CoreMark/mA than the closest 8/16-bit architecture. Single-cycle fast I/O access port facilitates bit banging and software protocol emulation, maintaining an 8-bit "look and feel"
      • Multiple, flexible low-power modes including new compute mode which reduces dynamic power by placing peripherals in an asynchronous stop mode
      • I2C, ADC, DAC, LP timer and DMA support low-power mode operation without waking up the core
    • Memory
      • 128 KB flash with 64 byte flash cache
      • 16 KB RAM
    • Peripherals
      • 16-bit ADC with configurable resolution, sample time and conversion speed/power
      • High-speed comparator with internal 6-bit DAC
      • 12-bit DAC with DMA support
    • Interfaces
      • Capacitive touch sense interface supports external electrodes
      • GPIO with pin interrupt support, DMA request capability and other pin control options
      • One I2C with DMA support, up to 100Kbps and compatible with MBus V2 features
      • One LPUART and two UART with DMA support
    • Operating Voltage and Temperature Range
      • 1.8 to 3.6V operating voltage with on-chip voltage regulators
      • Temperature range of -40°C to +85°C
    • Software
      • Radio Test Tool
      • Run on PC connected through USB
      • Allow fast evaluation of the radio performance in a lab environment without need for writing software
      • Analysis of TX spectrum (output power, harmonics)
      • Modulation scheme impact (GFSK, BT, Mod index) on spectrum
      • Help on matching network tuning
      • Analysis of RX Sensitivity performance (RSSI, LNA input impedance, OOK threshold, AFC)
      • SMAC (Simple Media Access Controller)
      • Simple communication and test apps based on drivers/PHY utilities available as source code
      • Small footprint (<10KB)
      • Supports point-to-point and star networks with repeaters
      • Support for over-the-air programming
  • KW2x Features
    • Up to 50MHz Cortex-M4 with 16-channel-DMA
    • 512KB Flash and 64KB RAM or
    • 256KB Flash and 32KB RAM with:
      • 64K FlexNVM (MKW21D256 only) and
      • 4k bytes of enhanced EEPROM/FlexRAM
    • SPI (1)
    • UART (2)
    • I2C (2)
    • USB FS OTG (KW22 and KW24)
    • 8-channel 16-bit SAR ADC
    • 6-bit DA
    • Cryptography Acceleration Unit (CAU)
    • AES encryption (FIPS 140)
    • External tamper detect
    • 32-bit CRC
    • 1.8 to 3.6 volts
    • Low-voltage detection
    • Multiple low power modes
    • Operating temperature of -40°C to 105°C

Aplicaciones

  • In-home displays
  • Smart thermostat
  • Metering
  • Home energy gateways
  • Security and access control
  • Smart grid and smart metering
  • Building control and monitoring
  • Building HVAC control
  • Retail pricing management
  • Usage data collection
  • Water heater control
  • Home health care
  • Patient monitoring
  • Fitness monitoring

Block Diagrams

Diagrama de bloques - NXP Semiconductors MCU Kinetis W
NXP Semiconductors MCU Kinetis W

​Additional Resources

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