Chengdu Ebyte Electronic Technology Co., Ltd.
E73-2G4M04S1B User
manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd.
6
1
GND
Input
Ground electrode, connect to reference ground of power
2
GND
Input
Ground electrode, connect to reference ground of power
3
DEC2
-
1.3 V Digital power supply decoupling controller
4
DEC3
-
Power supply decoupling
5
P0.25
Input/Output
MCU GPIO
6
P0.26
Input/Output
MCU GPIO
7
P0.27
Input/Output
MCU GPIO
8
P0.28
Input/Output
MCU GPIO
9
P0.29
Input/Output
MCU GPIO
10
P0.30
Input/Output
MCU GPIO
11
P0.31
Input/Output
MCU GPIO
12
DEC4
-
1.3 V Digital power supply decoupling controller
Input from DC/DC regulator
Output from1.3 V LDO
13
DCC
-
DC/DC DC regulator output
14
DEC1
-
0.9 V Digital power supply decoupling controller
15
GND
Input
MCU GPIO
16
VCC
Input
Power supply 1.8 ~ 3.6V DC
（
Note: The voltage higher 3.6V is forbidden
）
17
P0.02
Input/Output
MCU GPIO
18
P0.03
Input/Output
MCU GPIO
19
P0.04
Input/Output
MCU GPIO
20
P0.05
Input/Output
MCU GPIO
21
P0.06
Input/Output
MCU GPIO
22
P0.07
Input/Output
MCU GPIO
23
P0.08
Input/Output
MCU GPIO
24
P0.09
Input/Output
MCU GPIO
25
P0.10
Input/Output
MCU GPIO
26
P0.11
Input/Output
MCU GPIO
27
P0.12
Input/Output
MCU GPIO
28
P0.13
Input/Output
MCU GPIO
29
P0.14
Input/Output
MCU GPIO
30
P0.15
Input/Output
MCU GPIO
31
P0.16
Input/Output
MCU GPIO
32
P0.17
Input/Output
MCU GPIO
33
P0.18
Input/Output
MCU GPIO
34
P0.19
Input/Output
MCU GPIO
