Chengdu Ebyte Electronic Technology Co.,Ltd.
E73-2G4M08S1CX User Manual
Copyright ©2012–2021
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
8
11
XL1
P0.00/XL1
Common I/O
Connect to 32.768 kHz crystal
12
P0.26
P0.26
Common I/O
See details about nrf52840 datasheet on Nordic
website
13
XL2
P0.01/XL2
Common I/O
Connect to 32.768 kHz crystal
14
P0.06
P0.06
Common I/O
See details about nrf52840 datasheet on Nordic
website
15
AI3
P0.05/AIN3
Common I/O
Analog input 3
16
P0.08
P0.08
Common I/O
See details about nrf52840 datasheet on Nordic
website
17
P1.09
P1.09
Common I/O
See details about nrf52840 datasheet on Nordic
website
18
AI2
P0.04/AIN2
Common I/O
Analog input 2
19
VCC
-
-
Power supply
20
P12
P0.12
Common I/O
See details about nrf52840 datasheet on Nordic
website
21
GND
-
-
Ground line, connect to the power reference ground
22
P0.07
P0.07
Common I/O
See details about nrf52840 datasheet on Nordic
website
23
VDH
VDDH
-
High voltage power supply
24
GND
-
-
Ground line, connect to the power reference ground
25
DCH
DCCH
-
DC/DC converter output
26
RST
P0.18/RESET
Common I/O
QSPI/CSN/external reset
27
VBS
VBUS
-
USB power supply, 5W input, used to USB33V
voltage regulator
28
P15
P0.15
Common I/O
See details about nrf52840 datasheet on Nordic
website
29
D-
D-
-
USB D-
30
P17
P0.17
Common I/O
See details about nrf52840 datasheet on Nordic
website
31
D+
D+
-
USB D+
32
P0.20
P0.20
Common I/O
See details about nrf52840 datasheet on Nordic
website
33
P0.13
P0.13
Common I/O
See details about nrf52840 datasheet on Nordic
website
34
P0.22
P0.22
Common I/O
QSPI
35
P0.24
P0.24
Common I/O
36
P1.00
P1.00
Common I/O
See details about nrf52840 datasheet on Nordic
website
37
SWD
SWDIO
-
Serial debug programming port clock
38
P1.02
P1.02
Common I/O
See details about nrf52840 datasheet on Nordic
website
39
SWC
SWDCLK
-
Serial debug programming port clock
40
P1.04
P1.04
Common I/O
Low frequency I/O, standard drive
