WLCSP pin assignments

nRF5340 Product Specification

This section describes the pin assignments for both the CLAA and CMAA pacakge variants.

Figure 2. WLCSP pin assignments, top view


Table 3. WLCSP pin assignments
Pin Name Function Description Recommended usage
A1 XC1 Analog input Connection for 32 MHz crystal
A2 XC2 Analog input Connection for 32 MHz crystal
A3 VDD Power Power supply
A5 VSS Power Ground
A7 DECD Power Regulator supply decoupling
A9 DCCD Power DC/DC converter output
A11 D- USB USB D-
A12 D+ USB USB D+
B1 DECRF Power RADIO power supply decoupling
B2 VSS Power Ground
B4 DECR Power Regulator supply decoupling
B5 DECN Power Regulator supply decoupling
B6 DCC Power DC/DC converter output
B7 VDD Power Power supply
B8 DECA Power Regulator supply decoupling
B9 VSS Power Ground
B10 VDD Power Power supply
B11 VBUS Power Power
B12 VDDH Power Power supply
C2 VSS Power Ground
C4 P0.30 Digital I/O General purpose I/O
C5 P0.31 Digital I/O General purpose I/O
C6 P1.11 Digital I/O General purpose I/O
C7 P1.12 Digital I/O General purpose I/O
C8 P1.13 Digital I/O General purpose I/O
C9 P1.14 Digital I/O General purpose I/O
C10 P1.15 Digital I/O General purpose I/O
C11 DECUSB Power USB 3.3 V regulator supply decoupling
D1 ANT RF Single-ended antenna connection
D2 VDD Power Power supply
D10 P1.00 Digital I/O General purpose I/O
D11 DCCH Power DC/DC converter output
D12 VSS Power Ground
E2 P0.29 Digital I/O General purpose I/O
E3

P0.28
AIN7

Digital I/O
Analog input

General purpose I/O
Analog input
E4 P1.10 Digital I/O General purpose I/O
E5 VSS Power Ground
E6 VSS Power Ground
E7 VSS Power Ground
E8 VSS Power Ground
E10 P1.01 Digital I/O General purpose I/O
E11 VDD Power Power supply
F1 SWDIO Debug Serial wire debug I/O for debug and programming
F2 SWDCLK Debug Serial wire debug clock input for debug and programming
F3 P1.08 Digital I/O General purpose I/O
F5 VSS Power Ground
F6 VSS Power Ground
F7 VSS Power Ground
F8 VSS Power Ground
F10

P0.05
AIN1

Digital I/O
Analog input

General purpose I/O
Analog input
F11

P0.00
XL1

Digital I/O
Analog input

General purpose I/O
Connection for 32 kHz crystal
F12

P0.01
XL2

Digital I/O
Analog input

General purpose I/O
Connection for 32 kHz crystal
G2 nRESET Reset Pin RESET with internal pull-up resistor
G3 P1.07 Digital I/O General purpose I/O
G5 AVSS Power Ground
G6 VSS Power Ground
G7 VSS Power Ground
G8 VSS Power Ground
G10

P0.04
AIN0

Digital I/O
Analog input

General purpose I/O
Analog input
G11

P0.02
NFC1

Digital I/O
NFC input

General purpose I/O
NFC antenna connection
H1

P0.27
AIN6

Digital I/O
Analog input

General purpose I/O
Analog input
H2 P1.09 Digital I/O General purpose I/O
H3 P0.23 Digital I/O General purpose I/O
H10

P0.06
AIN2

Digital I/O
Analog input

General purpose I/O
Analog input
H11 VDD Power Power supply
H12

P0.03
NFC2

Digital I/O
NFC input

General purpose I/O
NFC antenna connection
J2

P0.26
AIN5

Digital I/O
Analog input

General purpose I/O
Analog input
J3 P1.06 Digital I/O General purpose I/O
J4 P0.21 Digital I/O General purpose I/O
J5 P0.19 Digital I/O General purpose I/O
J6

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
J7

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
J8

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
J9

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
J10

P0.07
AIN3

Digital I/O
Analog input

General purpose I/O
Analog input
J11

P1.02
TWI

Digital I/O
TWI 1 Mbps

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

 TWI
K1 VDD Power Power supply
K2 P0.24 Digital I/O General purpose I/O
K3 P1.04 Digital I/O General purpose I/O
K4 P0.22 Digital I/O General purpose I/O
K5 P0.20 Digital I/O General purpose I/O
K6 AVSS Power Ground
K7

P0.18
CSN

Digital I/O
CSN for QSPI

General purpose I/O
Dedicated pin for Quad SPI

 QSPI
K8

P0.16
IO3

Digital I/O
IO3 for QSPI

General purpose I/O
Dedicated pin for Quad SPI

 QSPI
K9

P0.14
IO1

Digital I/O
IO1 for QSPI

General purpose I/O
Dedicated pin for Quad SPI

 QSPI
K10

P0.13
IO0

Digital I/O
IO0 for QSPI

General purpose I/O
Dedicated pin for Quad SPI

 QSPI
K11 AVSS Power Ground
K12

P1.03
TWI

Digital I/O
TWI 1 Mbps

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

 TWI
L1

P0.25
AIN4

Digital I/O
Analog input

General purpose I/O
Analog input
L3 P1.05 Digital I/O General purpose I/O
L5 VDD Power Power supply
L7

P0.17
SCK

Digital I/O
SCK for QSPI

General purpose I/O
Dedicated pin for Quad SPI

 QSPI
L9

P0.15
IO2

Digital I/O
IO2 for QSPI

General purpose I/O
Dedicated pin for Quad SPI

 QSPI
L11 VDD Power Power supply
L12

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