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IC-Hersteller Microchip

Microchip AT86RF231

Low Power 2.4 GHz Transceiver for ZigBee, IEEE 802.15.4, 6LoWPAN, RF4CE, SP100, WirelessHART, and ISM Applications


TopologieDrahtlose Energieübertragung
IC-Revision8111C - 09/09


Feature rich, low-power 2.4GHz transceiver designed for industrial and consumer IEEE 802.15.4, ZigBee, RF4CE, SP100, WirelessHART™, ISM, and high data rate applications. It is a true SPI-to-antenna solution providing a complete radio transceiver interface between the antenna and the microcontroller. It comprises the analog radio transceiver and the digital demodulation including time and frequency synchronization, and data buffering. All RF-critical components are integrated on a single chip minimizing the number of required external components to the antenna, crystal and decoupling capacitors. The bidirectional differential antenna pins, used for transmission and reception, eliminate the need for an external antenna switch. An internal 128 byte RAM buffers transmit and receive data. Two on chip low dropout (LDO) voltage regulators provide the internal analog and digital 1.8V supply.


  • High Performance RF-CMOS 2.4 GHz Radio Transceiver Targeted for IEEE 802.15.4™,ZigBee®, 6LoWPAN, RF4CE, SP100, WirelessHART™ and ISM Applications
  • Industry Leading Link Budget (104 dB)– Receiver Sensitivity -101 dBm– Programmable Output Power from -17 dBm up to +3 dBm
  • Ultra-Low Current Consumption:– SLEEP = 0.02 μA– TRX_OFF = 0.4 mA– RX_ON = 12.3 mA– BUSY_TX = 14 mA (at max. Transmit Power of +3 dBm)
  • Ultra-Low Supply Voltage (1.8V to 3.6V) with Internal Regulator
  • Optimized for Low BoM Cost and Ease of Production:– Few External Components Necessary (Crystal, Capacitors and Antenna)– Excellent ESD Robustness
  • Easy to Use Interface:– Registers, Frame Buffer and AES Accessible through Fast SPI– Only Two Microcontroller GPIO Lines Necessary– One Interrupt Pin from Radio Transceiver– Clock Output with Prescaler from Radio Transceiver
  • Radio Transceiver Features:– 128-byte FIFO (SRAM) for Data Buffering– Programmable Clock Output, to Clock the Host Microcontroller or as TimerReference– Integrated RX/TX Switch– Fully Integrated, Fast Settling PLL to support Frequency Hopping– Battery Monitor– Fast Wake-Up Time < 0.4 msec
  • Special IEEE 802.15.4-2006 Hardware Support:– FCS Computation and Clear Channel Assessment– RSSI Measurement, Energy Detection and Link Quality Indication
  • MAC Hardware Accelerator:– Automated Acknowledgement, CSMA-CA and Retransmission– Automatic Address Filtering– Automated FCS Check
  • Extended Feature Set Hardware Support:– AES 128-bit Hardware Accelerator– RX/TX Indication (external RF Front-End Control)– RX Antenna Diversity– Supported PSDU data rates: 250 kb/s, 500 kb/s, 1 Mb/s and 2 Mb/s– True Random Number Generation for Security Application
  • Industrial and Extended Temperature Range:– -40°C to +85°C and -40°C to +125°C
  • I/O and Packages:– 32-pin Low-Profile QFN Package 5 x 5 x 0.9 mm³– RoHS/Fully Green
  • Compliant to IEEE 802.15.4-2006 and IEEE 802.15.4-2003
  • Compliant to EN 300 328/440, FCC-CFR-47 Part 15, ARIB STD-T66, RSS-210

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