NXP Semiconductors MCU Kinetis W

L'MCU wireless Kinetis KW2x di Freescale espande l'apprezzata famiglia di MCU Kinetis basati sulla CPU primaria ARM Cortex-M4 CPU. Il Kinetis KW2x integra un ricetrasmettitore RF a 2,4 GHz leader di categoria, nucleo ARM Cortex-M4 e una robusta serie di funzionalità per una soluzione wireless IEEE 802.15.4 affidabile, sicura e a basso consumo energetico. Questi MCU wireless offrono fino a 512 KB di memoria flash, 64 KB di RAM e fino a 64 KB di FlexMemory. Il doppio supporto PAN consente al sistema di partecipare contemporaneamente a due reti ZigBee eliminando la necessità di molteplici radio. Stack di protocollo software, strumenti e IDE sono compatibili con gli MCU Kinetis. Il software del protocollo ZigBee è integrato in maniera trasparente negli strumenti di sviluppo software Kinetis per consentire di creare rapidamente sistemi embedded. Le applicazioni tipiche includono Home Area Network costituiti da contatori, gateway, display domestici ed elettrodomestici collegati, nonché applicazioni di domotica e controllo edifici con controllo dell'illuminazione, riscaldamento e aria condizionata (HVAC) e sicurezza.

Video

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Caratteristiche

  • 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

Applicazioni

  • 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

Schema a blocchi - NXP Semiconductors MCU Kinetis W
NXP Semiconductors MCU Kinetis W

​Additional Resources

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