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Home >> Products >> Embedded Wireless Modules >> Embedded Bluetooth Modules >> AXB021

 AXB021 -- Bluetooth Low Energy Module with RTL8762AG and PCB Antenna

The AXB021 Bluetooth module, which built in a RTL8762AG Bluetooth chip, is an ultra-low power system on chip solution for Bluetooth low energy applications. The AXB021 combines the excellent performance of a leading RF transceiver with ARM Cortex M0, 256KB eflash, 80KB RAM, and rich powerful supporting features and peripherals. The AXB021 embeds IR transceiver, hardware keyscan, and Quad-decoder on the module.


  • Small overall dimension (25.2mm x 15.1 mm x 1.7mm)
  • Ultra low power consumption with intelligent PMU
  • Support the Bluetooth 4.2 core specification
  • Integrates MCU to execute Bluetooth protocol stack
  • Supports multiple level Low Energy states
  • Supports LE L2CAP Connection Oriented Channel
  • Supports LE low duty directed advertising
  • Supports LE data length extension feature
  • Supports OTA (Over-the-Air) programming mechanism for firmware upgrade
  • Supports internal 32KHz OSC or external 32KHz clock input for low power mode
  • Supports GAP, ATT/GATT, SMP, L2CAP
  • Generic Applications for GAP Central, Peripheral, Observer and Broadcaster Roles
  • ARM 32-bit Cortex-M0 CPU @ 53MHz
  • 256KB Flash, 80KB RAM
  • Supports AES128/192/256 encrypt/decrypt engine
  • 1 UART interface
  • 1 SPI interface
  • 1 I²C interface
  • 4 PWMs interfaces
  • 1 ADC (12-bit 39KHz Sigma-Delta)
  • Up to 16 GPIOs
  • Timer x 8
  • Three configurable LED pins
  • Hardware Keyscan and Quad-decoder
  • Embed IR transceiver
  • Real-time counters (RTC)
  • Supports Low power comparator
Target Applications:
  • Home healthcare devices
  • Beacon repeater
  • Barcode scanner
  • M2M connectivity
  • Industrial cable replacement
  • BLE to Wi-Fi gateway

 Block Diagram


 General Specification


 Selection Guide


Technical Documentation

 Product Brief, Product Introduction and Datasheet

AXB021 Brief267 KB2017-02-02
AXB021 Datasheet 411.3 KB2017-02-14
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AXB0xx BT Modules Product Introduction 900.2 KB2017-02-15

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