Chengdu Ebyte Electronic Technology Co.,Ltd.
E220-900M30S User Manual
Copyright ©2012–2021
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Chengdu Ebyte Electronic Technology Co.,Ltd.
7
3 Size and pin definition
Pin No.
Item
Direction
Description
1
GND
Ground, connect to power reference ground
2
GND
Ground, connect to power reference ground
3
GND
Ground, connect to power reference ground
4
GND
Ground, connect to power reference ground
5
GND
Ground, connect to power reference ground
6
RXEN
Input
RF switch receive control pin, connect external MCU IO, high level
effective
7
TXEN
Input
RF switch emission control pin, connected to external MCU IO or dio2,
high level effective
8
DIO2
Input / output
Configurable universal IO port (see llcc68 manual for details)
9
VCC
Power supply, range 3V ~ 5.5V (it is recommended to add ceramic filter
capacitor externally)
10
VCC
Power supply, range 3V ~ 5.5V (it is recommended to add ceramic filter
capacitor externally)
11
GND
Ground, connect to power reference ground
12
GND
Ground, connect to power reference ground