The QFN52 pin assignment figure and table describe the pinouts for this variant of the device.
Pins that can be used as clock signals are shown in as red in the figure. For more information about clock pins, see Clock pins.
| Pin | Clock pin | Name | Function | Description | Dedicated function |
|---|---|---|---|---|---|
| 1 | Yes |
P2.01 FLPR.0 QSPI.SCK SPIM00.SCK SPIS00.SCK |
Digital I/O Digital I/O Digital I/O Digital I/O Digital I/O |
General Purpose I/O General Purpose I/O QSPI SCK SPIM00 SCK SPIS00 SCK |
FLPR FLPR (QSPI) SPIM00 SPIS00 |
| 2 |
|
P2.02 FLPR.1 QSPI.D0 SPIM00.SDO SPIS00.SDO UARTE00.TXD |
Digital I/O Digital I/O Digital I/O Digital I/O Digital I/O Digital I/O |
General Purpose I/O General Purpose I/O QSPI D0 SPIM00 SDO SPIS00 SDO UARTE00 TXD |
FLPR FLPR(QSPI) SPIM00 SPIS00 UARTE00 |
| 3 |
|
P2.03 FLPR.3 QSPI.D2 |
Digital I/O Digital I/O Digital I/O |
General Purpose I/O QSPI D2 |
FLPR FLPR (QSPI) |
| 4 |
|
P2.04 FLPR.2 QSPI.D1 SPIM00.SDI SPIS00.SDI UARTE00.CTS |
Digital I/O Digital I/O Digital I/O Digital I/O Digital I/O Digital I/O |
General Purpose I/O General Purpose I/O QSPI D1 SPIM00 SDI SPIS00 SDI UARTE00 CTS |
FLPR FLPR(QSPI) SPIM00 SPIS00 UARTE00 |
| 5 |
|
P2.05 FLPR.5 QSPI.CSN SPIM00.CSN SPIS00.CSN UARTE00.RTS |
Digital I/O Digital I/O Digital I/O Digital I/O Digital I/O Digital I/O |
General Purpose I/O General Purpose I/O QSPI CSN SPIM00 CSN SPIS00 CSN UARTE00 RTS |
FLPR FLPR(QSPI) SPIM00 SPIS00 UARTE00 |
| 6 |
|
VDD |
Power |
1.7 V to 3.6 V, short to package/PCB VDD pin |
|
| 7 |
|
P1.29 AIN3 |
Digital I/O Analog input |
General Purpose I/O Analog input |
|
| 8 |
|
P1.30 AIN2 |
Digital I/O Analog input |
General Purpose I/O Analog input |
|
| 9 |
|
P1.31 AIN1 |
Digital I/O Analog input |
General Purpose I/O Analog input |
|
| 10 |
|
P1.00 AIN0 |
Digital I/O Analog input |
General Purpose I/O Analog input |
|
| 11 |
|
P1.01 NFC1 |
Digital I/O NFC input |
General Purpose I/O NFC antenna pin 1 |
NFC |
| 12 |
|
P1.02 NFC2 |
Digital I/O NFC input |
General Purpose I/O NFC antenna pin 2 |
NFC |
| 13 | Yes |
P1.03 AIN7 |
Digital I/O Analog input |
General Purpose I/O Analog input |
|
| 14 | Yes |
P1.04 AIN6 |
Digital I/O Analog input |
General Purpose I/O Analog input |
|
| 15 |
|
P1.05 AIN5 ASO[0] |
Digital I/O Analog input Digital I/O |
General Purpose I/O Analog input TAMPC active shield 0 output |
TAMPC
|
| 16 |
|
P1.06 AIN4 ASI[0] |
Digital I/O Analog input Digital I/O |
General Purpose I/O Analog input TAMPC active shield 0 input |
TAMPC
|
| 17 |
|
VBUS |
Power |
USB 5 V supply |
USB |
| 18 |
|
DECUSB |
Power |
USB regulator decoupling |
USB |
| 19 |
|
D+ |
Analog I/O |
USB D+ line |
USB |
| 20 |
|
D- |
Analog I/O |
USB D- line |
USB |
| 21 |
|
TXRTUNE |
Analog I/O |
USB TXRTUNE line |
USB |
| 22 | Yes |
P1.07
EXTREF |
Digital I/O Digital I/O Analog input |
General Purpose I/O GRTC CLKOUTFAST ADC external reference |
GRTC
|
| 23 |
|
P1.08 ASO[1] |
Digital I/O Digital I/O |
General Purpose I/O TAMPC active shield 1 output |
TAMPC |
| 24 |
|
P1.09 ASI[1] |
Digital I/O Digital I/O |
General Purpose I/O TAMPC active shield 1 input |
TAMPC
|
| 25 | Yes |
P0.03 |
Digital I/O Digital I/O |
General Purpose I/O GRTC PWM |
GRTC |
| 26 | Yes |
P0.04 |
Digital I/O Digital I/O |
General Purpose I/O GRTC CLKOUT32K |
GRTC |
| 27 | Yes |
P0.06 |
Digital I/O |
General Purpose I/O |
|
| 28 | Yes |
P0.07 |
Digital I/O |
General Purpose I/O |
|
| 29 |
|
P0.08 |
Digital I/O |
General Purpose I/O |
|
| 30 |
|
P0.09 |
Digital I/O |
General Purpose I/O |
|
| 31 |
|
SWDCLK |
Digital I/O |
Serial wire clock; input with pull-down |
|
| 32 |
|
SWDIO |
Digital I/O |
Serial wire data; bidirectional with high-drive and pull-up |
|
| 33 |
|
nRESET |
Reset |
Chip nReset input with pull-up |
|
| 34 |
|
ANT |
RF |
Single ended radio antenna connection |
|
| 35 |
|
VSS |
Power |
Ground |
|
| 36 |
|
DECRF |
Power |
0.9 V regulator supply decoupling for radio |
Must be connected to DECA |
| 37 |
|
XC1 |
Analog input |
Connection for 32 MHz crystal |
|
| 38 |
|
XC2 |
Analog input |
Connection for 32 MHz crystal |
|
| 39 |
|
P1.15 ASO[2] RADIO[0] |
Digital I/O Digital I/O Digital I/O |
General Purpose I/O TAMPC active shield 2 output Radio DFE GPIO |
TAMPC Radio
|
| 40 |
|
P1.16 ASI[2] RADIO[1] |
Digital I/O Digital I/O Digital I/O |
General Purpose I/O TAMPC active shield 2 input Radio DFE GPIO |
TAMPC Radio
|
| 41 | Yes |
P1.18 RADIO[3] |
Digital I/O Digital I/O |
General Purpose I/O Radio DFE GPIO |
Radio |
| 42 |
|
VDD |
Power |
VDD for DC/DC |
|
| 43 |
|
DCC |
Power |
DC/DC Regulator output |
|
| 44 |
|
DECD |
Power |
0.9 V regulator supply decoupling |
|
| 45 |
|
VSS |
Power |
Ground |
|
| 46 |
|
DECA |
Power |
0.9 V regulator supply decoupling |
|
| 47 |
|
P1.19 RADIO[4] |
Digital I/O Digital I/O |
General Purpose I/O Radio DFE GPIO |
Radio |
| 48 |
|
P1.20 RADIO[5] XL1 |
Digital I/O Digital I/O Analog input |
General Purpose I/O Radio DFE GPIO Connection for 32.768 kHz crystal |
Radio
|
| 49 |
|
P1.21 RADIO[6] XL2 |
Digital I/O Digital I/O Analog input |
General Purpose I/O Radio DFE GPIO Connection for 32.768 kHz crystal |
Radio
|
| 50 | Yes |
P1.24 |
Digital I/O |
General Purpose I/O |
|
| 51 |
|
VDD |
Power |
1.7 V to 3.6 V, short to package/PCB VDD pin |
|
| 52 |
|
P2.00 FLPR.4 QSPI.D3 SPIM00.DCX UARTE00.RXD |
Digital I/O Digital I/O Digital I/O Digital I/O Digital I/O |
General Purpose I/O General Purpose I/O QSPI D3 SPIM00 DCX UARTE00 RXD |
FLPR FLPR(QSPI) SPIM00 UARTE00 |
| 53 |
|
VSS |
Power |
Ground |
|