Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co., Ltd.
1
Version
Date
Description
Issued by
1.00
2017/12/06
Initial version
huaa
1.10
2017/12/06
Name changed
huaa
1.20
2018/05/23
Content added
Huaa
1.30
2018/08/01
E73(2G4M08S1C) added
Huaa
Brief Introduction
E73 series are wireless Bluetooth modules designed by Chengdu Ebyte which feature small size, low power consumption, built in PCB
antenna and IPX interface. E73 series adopt the originally imported RFIC nRF52832/ nRF52810/nRF52840 of NORDIC, supporting BLE 4.2
and BLE 5.0. The chip has high-performance ARM CORTEX-M4F kernel and other peripheral resources, such as UART, I2C, SPI, ADC, DMA,
PWM etc. The module led out all the IO port of nRF52832/nRF52810 and most IO Port of nRF52840 for multilateral development. For more
details, please refer to the datasheet of NORDIC. For E73 (2G4M04S1D), We used 16MHz high precision low temperature drift active
crystal oscillator and other model used 32MHz crystal oscillator, which ensure its industrial characteristics and stability performance
Compared with Bluetooth 4.2, Bluetooth 5 has the following advantages: 2x air data bandwidth(2Mbps), The broadcasting capacity is
increased(x8). Broadcasting extension makes the data length increase to 251 bytes which enables more effective data transmission in
beacon applications. 5210 applies S112 protocol stack which has been strictly tested and upgraded. It supports 196kB Flash/24kB RAM of
nRF52810 SoCs. S112 protocol stack only take 100kbB flash which means it saves enough space for massive low consumption Bluetooth
applications and provides reliable support for upgrade for OTA applications.
E73 series are hardware platform without firmware, so users need to conduct a secondary development. This series have maximized
the RF characteristics of chip. The built-in 32.768K real-time clock crystal oscillator can benefit users in programming(Note:
E73(2G4M08S1C) did not built in the crystal oscillator.)
Model
Frequency
Transmitting power
Distance(PCB/IPX)
Packing
Antenna
E73 (2G4M04S1B)
2.4GHz
4dBm
100m
SMD
PCB/IPX
E73 (2G4M04S1A)
2.4GHz
4dBm
110m
SMD
PCB/IPX
E73 (2G4M04S1D)
2.4GHz
4dBm
110m
SMD
PCB/IPX
E73(2G4M08S1C)
2.4GHz
8dBm
120m
SMD
Ceramic antenna
