aQFN94 pin assignments

nRF5340 Product Specification

The aQFN94 package has 94 pins in addition to four corner pads and a die pad.

Some pins are named N.C. (not connected). These pins can be left unconnected, or used as recommended in the pin assignments table.

Figure 1. aQFN™ pin assignments, top view. Corner and die pad is not illustrated.


Table 2. aQFN™ pin assignments
Pin Name Function Description Recommended usage
A5 VBUS Power 5 V input for USB 3.3 V regulator
A13 DECA Power Analog regulator supply decoupling
A15 DECD Power Digital regulator supply decoupling
A17 P1.13 Digital I/O General purpose I/O
A19 VDD Power Power supply
A21 DCC Power DC/DC converter output
A23 DECN Power Regulator supply decoupling
A25 N.C. Connect to VSS
A27 DECR Power Regulator supply decoupling
B2 D+ USB USB D+
B4 D- USB USB D-
B6 DECUSB Power USB 3.3 V regulator supply decoupling
B8 VDD Power Power supply
B10 DCCD Power DC/DC converter output
B12 N.C. Connect to VSS
B14 P1.15 Digital I/O General purpose I/O
B16 P1.14 Digital I/O General purpose I/O
B18 P1.12 Digital I/O General purpose I/O
B20 P1.11 Digital I/O General purpose I/O
B22 P0.31 Digital I/O General purpose I/O
B24 P0.30 Digital I/O General purpose I/O
B26 N.C. Connect to VSS
B28 VDD Power Power supply
B30 XC2 Analog input Connection for 32 MHz crystal
C1 VDD Power Power supply
C31 XC1 Analog input Connection for 32 MHz crystal
D2 N.C.
E1 VDDH Power Power supply
E31 VDD Power Power supply
F2 N.C.
G1 N.C. Connect to VSS
G31 DECRF Power RADIO power supply decoupling
H2 N.C. Connect to VSS
J1 DCCH Power DC/DC converter output
J31 N.C. Connect to VSS
K2 N.C.
L1 VDD Power Power supply
L31 ANT RF Single-ended antenna connection
M2 P1.00 Digital I/O General purpose I/O
N1

P0.00
XL1

Digital I/O
Analog input

General purpose I/O
Connection for 32 kHz crystal
N31 VDD Power Power supply
P2 P1.01 Digital I/O General purpose I/O
R1

P0.01
XL2

Digital I/O
Analog input

General purpose I/O
Connection for 32 kHz crystal
R31 P1.10 Digital I/O General purpose I/O
T2 N.C.
U1 VDD Power Power supply
U31 P0.29 Digital I/O General purpose I/O
V2

P0.04
AIN0

Digital I/O
Analog input

General purpose I/O
Analog input
W1

P0.02
NFC1

Digital I/O
NFC input

General purpose I/O
NFC antenna connection
W31 SWDCLK Debug Serial wire debug clock input for debug and programming
Y2

P0.05
AIN1

Digital I/O
Analog input

General purpose I/O
Analog input
AA1

P0.03
NFC2

Digital I/O
NFC input

General purpose I/O
NFC antenna connection
AA31 SWDIO Debug Serial wire debug I/O for debug and programming
AB2

P0.06
AIN2

Digital I/O
Analog input

General purpose I/O
Analog input
AC1 VDD Power Power supply
AC31 nRESET Reset Pin RESET with internal pull-up resistor
AD2

P0.07
AIN3

Digital I/O
Analog input

General purpose I/O
Analog input
AE1

P1.02
TWI

Digital I/O
TWI 1 Mbps

General purpose I/O
High-speed pin for 1 Mbps TWI

 TWI
AE31

P0.28
AIN7

Digital I/O
Analog input

General purpose I/O
Analog input
AF2

P1.03
TWI

Digital I/O
TWI 1 Mbps

General purpose I/O
High-speed pin for 1 Mbps TWI

 TWI
AG1 VDD Power Power supply
AG31 N.C.
AH2

P0.08
TRACEDATA3
SCK

Digital I/O
Trace data
SCK for SPIM4

General purpose I/O
Trace buffer TRACEDATA[3]
Dedicated pin for high-speed SPI

 Trace, SPIM4
AJ1

P0.09
TRACEDATA2
MOSI

Digital I/O
Trace data
MOSI for SPIM4

General purpose I/O
Trace buffer TRACEDATA[2]
Dedicated pin for high-speed SPI

 Trace, SPIM4
AJ31 VDD Power Power supply
AK2

P0.10
TRACEDATA1
MISO

Digital I/O
Trace data
MISO for SPIM4

General purpose I/O
Trace buffer TRACEDATA[1]
Dedicated pin for high-speed SPI

 Trace, SPIM4
AK4

P0.11
TRACEDATA0
CSN

Digital I/O
Trace data
CSN for SPIM4

General purpose I/O
Trace buffer TRACEDATA[0]
Dedicated pin for high-speed SPI

 Trace, SPIM4
AK6

P0.12
TRACECLK
DCX

Digital I/O
Trace clock
DCX for SPIM4

General purpose I/O
Trace buffer clock
Dedicated pin for high-speed SPI

 Trace, SPIM4
AK8

P0.14
IO1

Digital I/O
IO1 for QSPI

General purpose I/O
Dedicated pin for Quad SPI

 QSPI
AK10

P0.15
IO2

Digital I/O
IO2 for QSPI

General purpose I/O
Dedicated pin for Quad SPI

 QSPI
AK12

P0.17
SCK

Digital I/O
SCK for QSPI

General purpose I/O
Dedicated pin for Quad SPI

 QSPI
AK14

P0.18
CSN

Digital I/O
CSN for QSPI

General purpose I/O
Dedicated pin for Quad SPI

 QSPI
AK16 P0.20 Digital I/O General purpose I/O
AK18 P0.22 Digital I/O General purpose I/O
AK20 P0.23 Digital I/O General purpose I/O
AK22 P1.05 Digital I/O General purpose I/O
AK24 P1.07 Digital I/O General purpose I/O
AK26 P1.09 Digital I/O General purpose I/O
AK28

P0.25
AIN4

Digital I/O
Analog input

General purpose I/O
Analog input
AK30

P0.27
AIN6

Digital I/O
Analog input

General purpose I/O
Analog input
AL3 VDD Power Power supply
AL5

P0.13
IO0

Digital I/O
IO0 for QSPI

General purpose I/O
Dedicated pin for Quad SPI

 QSPI
AL7 VDD Power Power supply
AL9

P0.16
IO3

Digital I/O
IO3 for QSPI

General purpose I/O
Dedicated pin for Quad SPI

 QSPI
AL11 VDD Power Power supply
AL13 P0.19 Digital I/O General purpose I/O
AL15 P0.21 Digital I/O General purpose I/O
AL17 VDD Power Power supply
AL19 P1.04 Digital I/O General purpose I/O
AL21 P1.06 Digital I/O General purpose I/O
AL23 P1.08 Digital I/O General purpose I/O
AL25 VDD Power Power supply
AL27 P0.24 Digital I/O General purpose I/O
AL29

P0.26
AIN5

Digital I/O
Analog input

General purpose I/O
Analog input
Corner pads
A1 N.C.
A31 N.C.
AL1 N.C.
AL31 N.C.
Bottom of chip
Die pad VSS Power Ground pad. Exposed die pad must be connected to ground (VSS) for proper device operation.