42.2 Features

2.4 GHz RF Transceiver

  • Integrated 2.4 GHz Ultra Low Power RF Transceiver shared between Bluetooth and Zigbee Modems and Link (MAC) Controllers
  • Integrated 16 MHz ±20 ppm Crystal Oscillator (External Low Cost Crystal)
  • Two PA Design Architecture (LPA (+4 dBm) and MPA (+12 dBm)) to improve TX power efficiency
  • Low RBOM Two-port TRX RFFE Architecture
    • Integrated balun (single-ended RF output) and TRX Switch
  • Hardware Radio Arbiter with programmable QoS:
    • Resolution: up to per packet level
    • Time-division coexistence between Bluetooth and 802.15.4
    • Based on shared transceiver and antenna
    • Maintains connections of 802.15.4 and Bluetooth simultaneously

Bluetooth

  • Bluetooth Low Energy 5.2 Certified
  • Up to +12 dBm Programmable Transmit Output Power
  • Typical Receiver Power Sensitivity:
    • -97 dBm for Bluetooth Low Energy 1 Mbps
    • -93 dBm for Bluetooth Low Energy 2 Mbps
    • -104 dBm for Bluetooth Low Energy 125 Kbps
    • -101 dBm for Bluetooth Low Energy 500 Kbps
    • Digital RSSI indicator (-90 dBm ~ -50 dBm)
  • Bluetooth Supported Features:
    • 2M uncoded PHY
    • Long range (Coded PHY)
    • Channel selection algorithm #2
    • Advertising extensions, offloads CPU with hardware-based scheduler
    • High duty cycle non-connectible advertising
    • Data length extensions
    • Secure connections
    • Privacy upgrades (with hardware white-list support)
  • ECDH P256 Hardware Engine for Link Key Generation when Bluetooth Pairing
  • AES128 Hardware Module for Real-Time Bluetooth Payload Data Encryption
  • HCI Interface via UART
  • Bluetooth Low Energy Profiles:
    • Bluetooth Low Energy peripheral and central roles
    • Bluetooth Low Energy APIs for application layer to implement standard or customize GATT based profiles/services
    • Microchip Transparent UART Service
    • Battery Service
    • Device Information Service
    • Multi-link and multi-role
  • Bluetooth Low Energy Services:
    • Provisioning
    • Over-the-Air (OTA) update (also known as DFU)
    • Advertisement/Beacon
    • Personalized configuration
    • Alert notification service

802.15.4/Zigbee

  • 802.15.4/Zigbee PSDU data rate: 250 Kbps
  • Programmable RX Mode:
    • -103 dBm RX sensitivity in the Continuous mode
    • -98 dBm sensitivity in the RPC mode
    • RPC mode provides lower power consumption in RX mode to support California Green Energy Specification at the system level
  • Hardware Assisted MAC:

    • Auto acknowledge

    • Auto retry

    • Channel access back-off

  • SFD Detection, Spreading, De-spreading, Framing, CRC-16 Computation

  • Independent TX/RX Buffers for improved CPU Offloading while Handling Zigbee Data:

    • 128-byte TX and 128-byte RX frame buffer

  • Hardware Security:

    • Advanced Encryption Standard (AES)

    • True Random Number Generator (TRNG)

  • Zigbee Stack Support:
    • Zigbee 3.0 ready
    • Zigbee Pro 2015
    • Zigbee green power support (proxy, sink and multi-sensor)
Proprietary(1)
  • 500 kbps and 1 Mbps are 2.4 GHz Proprietary with DSSS
  • 2 Mpbs are 2.4 GHz Proprietary without DSSS
  • TX Output Power up to +12 dBm
  • Receiver Sensitivity up to -96 dBm
  • Hardware Assisted MAC:
    • Auto acknowledge
    • Auto retry
    • Channel access back-off
  • SFD Detection, Spreading, De-spreading, Framing, CRC-16 Computation
  • Independent TX/RX Buffers for improved CPU Offloading while Handling Zigbee Data:
    • 128-byte TX and 128-byte RX frame buffer
  • Hardware Security:
    • Advanced Encryption Standard (AES)
    • True Random Number Generator (TRNG)
Note:
  1. Proprietary modes are compatible to AT86RF233 modes of similar data rate.