Pin assignments

Pin functions

Module seen from top.

No	Name	Type	Description
P1	P1.11	Digital I/O	Low frequency signals only
P2	P1.10	Digital I/O	Low frequency signals only
P3	P1.12	Digital I/O	Low frequency signals only
P4	P1.13	Digital I/O	Low frequency signals only
P5	P1.14	Digital I/O	Low frequency signals only
P6	P1.15	Digital I/O	Low frequency signals only
P7	P0.03	Digital I/O, Analog Input	Low frequency signals only
P8	P0.02	Digital I/O, Analog Input	Low frequency signals only
P9	P0.28	Digital I/O, Analog Input	Low frequency signals only
P10	P0.29	Digital I/O, Analog Input	Low frequency signals only
P11	P0.31	Digital I/O, Analog Input	Low frequency signals only
P12	P0.30	Digital I/O, Analog Input	Low frequency signals only
P13	DCC1	Voltage Input	Do not connect
P14	P0.27	Digital I/O
P15	P0.04	Digital I/O, Analog Input
P16	P0.05	Digital I/O, Analog Input
P17	P0.06	Digital I/O
P18	P0.07	Digital I/O
P19	P0.08	Digital I/O
P20	P1.09	Digital I/O
P21	P0.12	Digital I/O
P22	P0.11	Digital I/O
P23	VBUS	Voltage Supply	5V supply if USB is used, else tie to ground
P24	P0.19	Digital I/O
P25	P0.21	Digital I/O
P26	D-	Digital I/O	USB data
P27	D+	Digital I/O	USB data
P28	P0.18	Digital I/O	nRESET
P29	P0.22	Digital I/O
P30	P0.23	Digital I/O
P31	P1.00	Digital I/O
P32	SWDIO	Digital I/O	Debug
P33	SWDCLK	Digital I/O	Debug
P34	P0.09 / NFC	Digital I/O	NFC
P35	P0.10 / NFC	Digital I/O	NFC
P36	VCC	Voltage Supply	Main voltage supply
P37	GND	GND
P38	GND	GND
P39	GND	GND

Note: Low frequency I/O is a signal with a frequency up to 10 kHz.
For detailed information about pin functionality, see the Nordic Semiconductor nRF52840 product specification document.