Ebyte E73 2G4M04S1B User Manual page 8

11 P0.31
12 DEC4
13 DCC
14 DEC1
GND
15
16 VCC
17 P0.02
18 P0.03
19 P0.04
P0.05
20
21 P0.06
22 P0.07
23 P0.08
24 P0.09
25 P0.10
26 P0.11
P0.12
27
28 P0.13
29 P0.14
30 P0.15
31 P0.16
P0.17
32
33 P0.18
34 P0.19
35 P0.20
36 P0.21
SWDCLK
37
38 SWDIO
39 P0.22
40 P0.23
41 P0.24
GND
42
43 GND
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Input/Output MCU GPIO
1.3 V Digital power supply decoupling controller
Input from DC/DC regulator
DC/DC DC regulator output
0.9 V Digital power supply decoupling controller
Input
MCU GPIO
Input Power supply 1.8 ~ 3.6V DC（Note: The voltage higher 3.6V is forbidden）
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output
MCU GPIO
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output
MCU GPIO
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output
MCU GPIO
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output/RST MCU GPIO
Input Serial Line Debugging / Clock Input Debugging and Programming
Input Serial line debugging and programming debugging
Input/Output MCU GPIO
Input/Output MCU GPIO
Input/Output MCU GPIO
Input
Ground electrode, connect to power reference ground
Input Ground electrode, connect to power reference ground
★ For more details, please refer to《nRF528XXDatasheet》in NORDIC ★
Output from1.3 V LDO
7