Chengdu Ebyte Electronic Technology Co.,Ltd
E30-900M20S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
6
3 Size and Pin definition
Pin No.
Item
Direction
Description
1
GND
Ground wire, connected to the power reference ground
2
GND
Ground wire, connected to the power reference ground
3
GND
Ground wire, connected to the power reference ground
4
GND
Ground wire, connected to the power reference ground
5
GND
Ground wire, connected to the power reference ground
6
GPIO_2
Output
Configurable universal GPIO port (see SI4463manual for details)
7
GPIO_3
Output
Configurable universal GPIO port (see SI4463manual for details)
8
GPIO_1
Output
Configurable universal GPIO port (see SI4463manual for details)
9
VCC
Power supply, 2.5~3.6V, 3.3V is recommended (It is also recommended to add
external ceramic filter capacitor)
10
GND
Ground wire, connected to the power reference ground
11
GND
Ground wire, connected to the power reference ground
12
GND
Ground wire, connected to the power reference ground
13
GPIO_0
Output
Configurable universal GPIO port (see SI4463manual for details)
14
IRQ
Output
SPI interrupt request
15
SDN
Shutdown Input Pin. It is low level when working
(See SI4463 manual for more details)
