BLE 5, Thread, Zigbee Modules,BT840X/XE
Ver 1.11 April 2019
4
1. Introduction
BluNor BT840X Series are powerful, highly flexible, ultra low power wireless modules using Nordic nRF52840
SoCs. With an ARMCortex
TM
M4F MCU, 1MB flash, 256KB RAM, embedded 2.4GHz multi-protocol
transceiver, and an integrated antenna, it allows faster time to market with reduced development cost.
The following is a block diagram of BT840X. Antenna circuit and main clock are integrated. All 48 GPIOs of
nRF52840 can be accessed from main board. For lower power consumption at idle state, a 32.768 kHz crystal
can be added on the host board.
BT840X Block Diagram
BlurNor BT840X is a sister module of BT832F. The physical size is the same. There are 21 additional LGA pins
for additional GPIOs provided by nRF52840.
There are 2 modules in the BT840X Series.
BT840X
•
Uses an nRF52840 QIAA with Cortex M4F MCU
•
1MB flash, 256 KB RAM
•
integrated SKY66112 power amplifier
•
Integrated 32.768 KHz sleep crystal
•
Integrated PCB trace antenna
