General Introduction; Main Parameter - Ebyte E78 Series User Manual

Chengdu Ebyte Electronic Technology Co., Ltd

1. General introduction

E78 series are RF transceiver module of various frequency bands designed
and manufactured by Chengdu Ebyte, with long communication distance and
extremely low power mode current consumption. It is a small-sized SMD type (pin
pitch 1.1mm).
E78-400M22S1A adopts ASR6505 chip from ASR Company. This chip is an
ultra-low-power LoRa integrated single-chip SoC. It uses Semtech advanced
low-power LoRa Transceiver SX1262 and integrates a STM8L152 low-power MCU,
Flash capacity 64kB, SRAM Capacity 4kB, EEPROM capacity 2K, small-sized, ultra-low power consumption, for
LoRaWAN, LinkWAN multiple protocol standards, applicable for a variety of IoT application scenarios, is currently the
best choice for LPWAN applications.
It is a hardware platform, cannot be used independently. Users need to conduct secondary development. (We can
customize standard LoRaWan, Ali linkWan nodes).

1.1 Main parameter

Model
No.
E78-400M22S1A 410-490MHz
Model
No.
E78-400M22S1A
Parameter category
Transmit
current(LoRa@2.4kb
ps)
Receiving
current(LoRa@2.4kb
ps)
Shutdown current
Transmit power
Receiving
sensitivity
TCXO crystal
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd.
Transmit
Frequency
power
21dBm
Core IC Size
ASR6505
26* 16*2.8 mm
Min
100
13
1.6
20.6
-139
32
Reference distance(stamp
hole/IPEX)
5.5km(Lora 1kbps)
working
Net weight temperatu
1.9g -40 ~ 85℃
Typ
110
14
2
20.8
-140
32
E78-400M22S1A User Manual
Package Antenna
SMD Stamp hole/IPEX
Working
temperatu
humidity
re
10% ~ 90% -40 ~ 125°C
Max Unit
120 mA
15 mA
2.6 uA
21 dBm
-140 dBm
32 MHz
Storage
re
2