Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co., Ltd.
10
2.3.2 Pin definition
No.
Pin item
Pin direction
Application
No.
1
P1.11
-
Common I/O
-
2
P1.10
-
Common I/O
Low frequency I/O, standard drive
3
P0.03
P0.03/AIN1
Common I/O
Analog input 1, low frequency I/O, standard drive
4
AI4
P0.28/AIN4
Common I/O
Analog input 4
5
GND
-
-
Single ground line，connect to the power reference ground
6
P1.13
-
Common I/O
Low frequency I/O, standard drive
7
AI0
P0.02/AIN0
Common I/O
Analog input 0, low frequency I/O, standard drive
8
AI5
P0.29/AIN5
Common I/O
Analog input 5, low frequency I/O, standard drive
9
AI7
P0.31/AIN7
Common I/O
Analog input 7, low frequency I/O, standard drive
10
AI6
P0.30/AIN6
Common I/O
Analog input 6, low frequency I/O, standard drive
11
XL1
P0.00/XL1
Common I/O
Connect to 32.768 kHz crystal
12
P0.26
-
Common I/O
-
13
XL2
P0.01/XL2
Common I/O
Connect to 32.768 kHz crystal
14
P0.06
-
Common I/O
-
15
AI3
P0.05/AIN3
Common I/O
Analog input 3
16
P0.08
-
Common I/O
-
17
P1.09
-
Common I/O
-
18
AI2
P0.04/AIN2
Common I/O
Analog input 2
19
VDD
-
-
Power supply
20
P12
P0.12
Common I/O
-
21
GND
-
-
ground line，connect to the power reference ground
22
P0.07
-
Common I/O
-
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，5V input，used to USB3.3V voltage regulator
28
P15
P0.15
Common I/O
-
29
D-
-
-
USB D-
30
P17
P0.17
Common I/O
-
31
D+
-
-
USB D+
32
P0.20
-
Common I/O
-
33
P0.13
-
Common I/O
-
34
P0.22
-
Common I/O
QSPI
35
P0.24
-
Common I/O
QSPI
36
P1.00
-
Common I/O
-
37
SWD
SWDIO
-
Serial debug programming port data
38
P1.02
-
Common I/O
-
39
SWC
SWDCLK
-
Serial debug programming port clock
40
P1.04
-
Common I/O
Low frequency I/O, standard drive
41
NF1
P0.09/NFC1
Common I/O
NFC input
42
P1.06
-
Common I/O
Low frequency I/O, standard drive
43
NF2
P0.10/NFC2
Common I/O
NFC input
★ For more details, please refer to《nRF52840Datasheet》in NORDIC ★
