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CyFi™ Low-Power RF

CyFi (CYRF7936) is a 2.4 GHz ISM radio transceiver, capable of supporting data rates upto 1 Mbps. It features a 1-Mbps GFSK radio front-end, packet data buffering, packet framer, DSSS baseband controller, and RSSI.

CyFi allows implementation of mixed-rate systems in which different devices use different data rates. It also allows the implementation of dynamic data rate systems that use high data rates at shorter distances.

The CYRF7936 IC has a power management unit (PMU), which allows direct connection of the device to any battery voltage in the range 1.8 V to 3.6 V.

CyFi features the CyFi Star Network Protocol Stack that maximizes reliability and power-efficiency in a wireless networkby having up to 250 wireless nodes.

Key Features

  • Multi- Channel& Node Capacity:
    98 discrete 1-MHz Channels supported, capacity of 250 nodes per hub
  • Data Rates:
    125 kbps, 250 kbps and 1Mbps
  • Connectivity:
    4 MHz SPI interface
  • Power Consumption:
    Operating current 21mA, sleep current 1uA, optimized for coin-cell, low impedance batteries and wall-powered devices
  • Package:
    Available in 40 QFN 6x6 mm


  • Wireless Sensor Networks
  • Wireless Actuator Control
  • Home Automation
  • White Goods
  • Commercial Building Automation
  • Automatic Meter Readers
  • Precision Agriculture
  • Remote Controls
  • Consumer Electronics
  • Personal Health and Fitness
  • Toys

Sunset Owner: CFB; Secondary Owner: YMT;