Chengdu Ebyte Electronic Technology Co., Ltd. E19 -868M20S User Manual
Copyright ©2012–2018
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
3
2.Specification and parameter
2.1 Limit parameter
Main parameter
Performance
Remark
Min.
Max.
Power supply
（
V
）
0
3.6
Voltage over 3.6V will cause permanent damage to module
Blocking power
（
dBm
）
-
10
Chances of burn is slim when modules are used in short distance
Operating temperature
（
℃
）
-40
85
-
2.2 Operating parameter
Main parameter
Performance
Remark
Min.
Typ.
Max.
Operating voltage
（
V
）
1.8
3.3
3.6
≥3.3V ensures output power
Communication level
（
V
）
-
3.3
-
For 5V TTL, it may be at risk of burning down
Operating temperature
（
℃
）
-40
-
85
Industrial design
Operating frequency
（
M Hz
）
862
868
893
Support ISM band
Power
consumpti
on
TX current
（
mA
）
-
630
-
Instant power consumption
RX current
（
mA
）
-
14
-
-
Sleep current
（
μA
）
-
1.0
-
Software is shut down
M ax Tx power
（
dBm
）
19
20
21
-
Receiving sensitivity
（
dBm
）
-145
-147
-148
Sensitivity test conditions
：
air data rate: 0.3 kbps, Coding rate 4/5, Spread Spectrum
Factor 12.
Air data rate
（
bps
）
1.2
-
300
Kbps
FSK
0.018
-
37.5
Kbps
Lora
TM
Main parameter
Description
Remark
Distance for reference
5000m
Test condition
：
clear and open area, antenna gain: 5dBi
，
antenna
height: 2.5m
，
air data rate: 0.3kbps
FIFO
256Byte
M ax length transmitted each time
Crystal frequency
32M Hz
-
M odulation
LoRa
TM
(recommended)
FSK/GFSK/MSK/GMSK/OOK
Package
SM D
-
Connector
1.27mm
-
Communication interface
SPI
0-10M bps
Size
17.6*25.2 mm
-
Antenna
Stamp hole
50 ohm impedance
