Pin assignments
The pin assignment figures and tables describe the pinouts for the product variants of the chip.
The nRF52833 device provides flexibility regarding GPIO pin routing and configuration. However, some pins have limitations or recommendations for pin configurations and uses.
aQFN73 ball assignments
The ball assignment figure and table in the following section describe the assignments for this variant of the chip.
| Pin | Name | Function | Description | Recommended usage |
|---|---|---|---|---|
| A8 | P0.31 AIN7 | Digital I/O Analog input | General purpose I/O Analog input | Standard drive, low frequency I/O only |
| A10 | P0.29 AIN5 | Digital I/O Analog input | General purpose I/O Analog input | Standard drive, low frequency I/O only |
| A12 | P0.02 AIN0 | Digital I/O Analog input | General purpose I/O Analog input | Standard drive, low frequency I/O only |
| A14 | P0.19 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| A16 | P1.05 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| A18 | N.C. | |||
| A20 | P0.25 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| A22 | VDD | Power | Power supply | |
| A23 | XC2 | Analog input | Connection for 32 MHz crystal | |
| B1 | VDD | Power | Power supply | |
| B3 | DCC | Power | DC/DC converter output | |
| B5 | DEC4 | Power | 1.3 V regulator supply decoupling | Must be connected to DEC6 (pin E24) |
| B7 | VSS | Power | Ground | |
| B9 | P0.30 AIN6 | Digital I/O Analog input | General purpose I/O Analog input | Standard drive, low frequency I/O only |
| B11 | P0.28 AIN4 | Digital I/O Analog input | General purpose I/O Analog input | Standard drive, low frequency I/O only |
| B13 | P0.03 AIN1 | Digital I/O Analog input | General purpose I/O Analog input | Standard drive, low frequency I/O only |
| B15 | P1.03 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| B17 | P0.23 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| B19 | N.C. | |||
| B24 | XC1 | Analog input | Connection for 32 MHz crystal | |
| C1 | DEC1 | Power | 1.1 V regulator supply decoupling | |
| D2 | P0.00 XL1 | Digital I/O Analog input | General purpose I/O Connection for 32.768 kHz crystal | |
| D23 | DEC3 | Power | Power supply, decoupling | |
| E24 | DEC6 | Power | 1.3 V regulator supply decoupling | Must be connected to DEC4 (pin B5) |
| F2 | P0.01 XL2 | Digital I/O Analog input | General purpose I/O Connection for 32.768 kHz crystal | |
| F23 | VSS_PA | Power | Ground (radio supply) | |
| G1 | P0.26 | Digital I/O | General purpose I/O | |
| H2 | P0.27 | Digital I/O | General purpose I/O | |
| H23 | ANT | RF | Single-ended radio antenna connection | See Reference circuitry for guidelines on how to ensure good RF performance |
| J1 | P0.04 AIN2 | Digital I/O Analog input | General purpose I/O Analog input | |
| J24 | P0.10 NFC2 | Digital I/O NFC input | General purpose I/O NFC antenna connection | Standard drive, low frequency I/O only |
| K2 | P0.05 AIN3 | Digital I/O Analog input | General purpose I/O Analog input | |
| L1 | P0.06 | Digital I/O | General purpose I/O | |
| L24 | P0.09 NFC1 | Digital I/O NFC input | General purpose I/O NFC antenna connection | Standard drive, low frequency I/O only |
| M2 | P0.07 TRACECLK | Digital I/O Trace clock | General purpose I/O Trace buffer clock | |
| N1 | P0.08 | Digital I/O | General purpose I/O | |
| N24 | DEC5 Not connected | Power | 1.3 V regulator supply decoupling for build codes Axx and earlier. Not connected for build codes Bxx and later. | |
| P2 | P1.08 | Digital I/O | General purpose I/O | |
| P23 | P1.07 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| R1 | P1.09 TRACEDATA3 | Digital I/O Trace data | General purpose I/O Trace buffer TRACEDATA[3] | |
| R24 | P1.06 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| T2 | P0.11 TRACEDATA2 | Digital I/O Trace data | General purpose I/O Trace buffer TRACEDATA[2] | |
| T23 | N.C. | |||
| U1 | P0.12 TRACEDATA1 | Digital I/O Trace data | General purpose I/O Trace buffer TRACEDATA[1] | |
| U24 | P1.04 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| V23 | N.C. | |||
| W1 | VDD | Power | Power supply | |
| W24 | P1.02 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| Y2 | VDDH | Power | High voltage power supply | |
| Y23 | P1.01 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| AA24 | SWDCLK | Debug | Serial wire debug clock input for debug and programming | |
| AB2 | N.C. | |||
| AC5 | DECUSB | Power | USB 3.3 V regulator supply decoupling | |
| AC9 | P0.14 | Digital I/O | General purpose I/O | |
| AC11 | P0.16 | Digital I/O | General purpose I/O | |
| AC13 | P0.18 nRESET | Digital I/O | General purpose I/O Configurable as pin RESET | |
| AC15 | N.C. | |||
| AC17 | P0.21 | Digital I/O | General purpose I/O | |
| AC19 | N.C. | |||
| AC21 | N.C. | |||
| AC24 | SWDIO | Debug | Serial wire debug I/O for debug and programming | |
| AD2 | VBUS | Power | 5 V input for USB 3.3 V regulator | |
| AD4 | D- | USB | USB D- | |
| AD6 | D+ | USB | USB D+ | |
| AD8 | P0.13 | Digital I/O | General purpose I/O | |
| AD10 | P0.15 | Digital I/O | General purpose I/O | |
| AD12 | P0.17 | Digital I/O | General purpose I/O | |
| AD14 | VDD | Power | Power supply | |
| AD16 | P0.20 | Digital I/O | General purpose I/O | |
| AD18 | P0.22 | Digital I/O | General purpose I/O | |
| AD20 | P0.24 | Digital I/O | General purpose I/O | |
| AD22 | P1.00 TRACEDATA0 | Digital I/O Trace data | General purpose I/O Trace buffer TRACEDATA[0] Serial wire output (SWO) | |
| AD23 | VDD | Power | Power supply | |
| Die pad | VSS | Power | Ground pad | Exposed die pad must be connected to ground (VSS) for proper device operation |
QFN40 pin assignments
The pin assignment figure and table describe the assignments for this variant of the chip.
| Pin | Name | Function | Description | Recommended usage |
|---|---|---|---|---|
| Left side of the chip | ||||
| 1 | DEC1 | Power | 1.1 V Digital supply decoupling | |
| 2 | P0.00 XL1 | Digital I/O Analog input | General purpose I/O pin. Connection for 32.768 kHz crystal | |
| 3 | P0.01 XL2 | Digital I/O Analog input | General purpose I/O pin Connection for 32.768 kHz crystal | |
| 4 | P0.04 AIN2 | Digital I/O Analog input | General purpose I/O pin Analog input | |
| 5 | P0.05 AIN3 | Digital I/O Analog input | General purpose I/O pin Analog input | |
| 6 | P1.09 | Digital I/O | General purpose I/O pin | |
| 7 | P0.11 | Digital I/O | General purpose I/O pin | |
| 8 | VDD | Power | Power supply | |
| 9 | VDDH | Power | High voltage power supply | |
| 10 | VBUS | Power | 5 V input for USB 3.3 V regulator | |
| Bottom side of the chip | ||||
| 11 | DECUSB | Power | USB 3.3 V regulator supply decoupling | |
| 12 | D- | USB | USB D- | |
| 13 | D+ | USB | USB D+ | |
| 14 | P0.15 | Digital I/O | General purpose I/O | |
| 15 | P0.17 | Digital I/O | General purpose I/O | |
| 16 | P0.18 nRESET | Digital I/O | General purpose I/O Configurable as pin RESET | |
| 17 | P0.20 | Digital I/O | General purpose I/O | |
| 18 | VDD | Power | Power supply | |
| 19 | SWDIO | Debug | Serial wire debug I/O for debug and programming | |
| 20 | SWDCLK | Debug | Serial wire debug clock input for debug and programming | |
| Right side of the chip | ||||
| 21 | DEC5 Not connected | Power | 1.3 V regulator supply decoupling for build codes Axx and earlier. Not connected for build codes Bxx and later. | |
| 22 | P0.09 NFC1 | Digital I/O NFC input | General purpose I/O NFC antenna connection | Standard drive, low frequency I/O only |
| 23 | P0.10 NFC2 | Digital I/O NFC input | General purpose I/O NFC antenna connection | Standard drive, low frequency I/O only |
| 24 | ANT | RF | Single-ended radio antenna connection | See Reference circuitry for guidelines on how to ensure good RF performance |
| 25 | VSS_PA | Power | Ground (radio supply) | |
| 26 | DEC6 | Power | 1.3 V regulator supply decoupling | Must be connected to DEC4 (pin 38) |
| 27 | DEC3 | Power | Power supply, decoupling | |
| 28 | XC1 | Analog input | Connection for 32 MHz crystal | |
| 29 | XC2 | Analog input | Connection for 32 MHz crystal | |
| 30 | VDD | Power | Power supply | |
| Top side of the chip | ||||
| 31 | P0.03 AIN1 | Digital I/O Analog input | General purpose I/O pin Analog input | Standard drive, low frequency I/O only |
| 32 | P0.02 AIN0 | Digital I/O Analog input | General purpose I/O pin Analog input | Standard drive, low frequency I/O only |
| 33 | P0.28 AIN4 | Digital I/O Analog input | General purpose I/O pin Analog input | Standard drive, low frequency I/O only |
| 34 | P0.29 AIN5 | Digital I/O Analog input | General purpose I/O pin Analog input | Standard drive, low frequency I/O only |
| 35 | P0.30 AIN6 | Digital I/O Analog input | General purpose I/O pin Analog input | Standard drive, low frequency I/O only |
| 36 | P0.31 AIN7 | Digital I/O Analog input | General purpose I/O pin Analog input | |
| 37 | VSS | Power | Ground | |
| 38 | DEC4 | Power | 1.3 V regulator supply decoupling | Must be connected to DEC6 (pin 26) |
| 39 | DCC | Power | DC/DC converter output | |
| 40 | VDD | Power | Power supply | |
| Backside of the the chip | ||||
| Die pad | VSS | Power | Ground pad | Exposed die pad must be connected to ground (VSS) for proper device operation |
WLCSP ball assignments
The ball assignment figure and table describe the assignments for this variant of the chip.
| 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 | P0.25 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| A4 | P0.03 AIN1 | Digital I/O Analog input | General purpose I/O pin Analog input | Standard drive, low frequency I/O only |
| A5 | P0.29 AIN5 | Digital I/O Analog input | General purpose I/O pin Analog input | Standard drive, low frequency I/O only |
| A6 | DEC4 | Power | 1.3 V regulator supply decoupling | Must be connected to DEC6 (ball C2) |
| A7 | VSS | Power | Ground | |
| A8 | DCC | Power | DC/DC converter output | |
| A9 | VDD | Power | Power supply | |
| B3 | VDD | Power | Power supply | |
| B4 | P1.03 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| B5 | P0.30 AIN6 | Digital I/O Analog input | General purpose I/O pin Analog input | Standard drive, low frequency I/O only |
| B6 | P0.31 AIN7 | Digital I/O Analog input | General purpose I/O pin Analog input | Standard drive, low frequency I/O only |
| B7 | P0.01 XL2 | Digital I/O Analog input | General purpose I/O pin Connection for 32.768 kHz crystal | |
| B8 | P0.00 XL1 | Digital I/O Analog input | General purpose I/O pin. Connection for 32.768 kHz crystal | |
| B9 | DEC1 | Power | 1.1 V Digital supply decoupling | |
| C1 | VSS_PA | Power | Ground (radio supply) | |
| C2 | DEC6 | Power | 1.3 V regulator supply decoupling | Must be connected to DEC4 (ball A6) |
| C4 | P1.05 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| C5 | P0.19 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| C6 | P0.02 AIN0 | Digital I/O Analog input | General purpose I/O pin Analog input | Standard drive, low frequency I/O only |
| C7 | P0.28 AIN4 | Digital I/O Analog input | General purpose I/O pin Analog input | Standard drive, low frequency I/O only |
| C8 | P0.27 | Digital I/O | General purpose I/O | |
| C9 | P0.26 | Digital I/O | General purpose I/O | |
| D3 | VSS | Power | Ground | |
| D4 | VSS | Power | Ground | |
| D5 | VSS | Power | Ground | |
| D6 | VSS | Power | Ground | |
| D7 | P0.23 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| D8 | P0.04 AIN2 | Digital I/O Analog input | General purpose I/O pin Analog input | |
| D9 | P0.05 AIN3 | Digital I/O Analog input | General purpose I/O pin Analog input | |
| E1 | ANT | RF | Single-ended radio antenna connection | See Reference circuitry for guidelines on how to ensure good RF performance |
| E2 | P0.10 NFC2 | Digital I/O NFC input | General purpose I/O NFC antenna connection | Standard drive, low frequency I/O only |
| E3 | P1.06 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| E4 | VSS | Power | Ground | |
| E5 | VSS | Power | Ground | |
| E6 | VSS | Power | Ground | |
| E7 | P0.08 | Digital I/O | General purpose I/O | |
| E8 | P0.07 TRACECLK | Digital I/O Trace clock | General purpose I/O Trace buffer clock | |
| E9 | P0.06 | Digital I/O | General purpose I/O | |
| F1 | DEC5 Not connected | Power | 1.3 V regulator supply decoupling for build codes Axx and earlier. Not connected for build codes Bxx and later. | |
| F2 | P0.09 NFC1 | Digital I/O NFC input | General purpose I/O NFC antenna connection | Standard drive, low frequency I/O only |
| F3 | P1.01 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| F4 | VSS | Power | Ground | |
| F5 | VSS | Power | Ground | |
| F6 | VSS | Power | Ground | |
| F7 | P0.13 | Digital I/O | General purpose I/O | |
| F8 | P1.09 TRACEDATA3 | Digital I/O Trace data | General purpose I/O Trace buffer TRACEDATA[3] | |
| F9 | P1.08 | Digital I/O | General purpose I/O | |
| G1 | P1.07 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| G2 | P1.04 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| G3 | P0.24 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| G4 | P0.21 | Digital I/O | General purpose I/O | |
| G5 | P0.20 | Digital I/O | General purpose I/O | |
| G6 | P0.16 | Digital I/O | General purpose I/O | |
| G8 | P0.11 TRACEDATA2 | Digital I/O Trace data | General purpose I/O Trace buffer TRACEDATA[2] | |
| G9 | VDD | Power | Power supply | |
| H1 | P1.02 | Digital I/O | General purpose I/O | Standard drive, low frequency I/O only |
| H2 | SWDCLK | Debug | Serial wire debug clock input for debug and programming | |
| H3 | P1.00 TRACEDATA0 | Digital I/O Trace data | General purpose I/O Trace buffer TRACEDATA[0] Serial wire output (SWO) | |
| H4 | P0.18 nRESET | Digital I/O | General purpose I/O Configurable as pin RESET | |
| H5 | P0.15 | Digital I/O | General purpose I/O | |
| H6 | P0.12 TRACEDATA1 | Digital I/O Trace data | General purpose I/O Trace buffer TRACEDATA[1] | |
| H7 | D- | USB | USB D- | |
| H8 | VBUS | Power | 5 V input for USB 3.3 V regulator | |
| H9 | VDDH | Power | High voltage power supply | |
| J1 | VDD | Power | Power supply | |
| J2 | SWDIO | Debug | Serial wire debug I/O for debug and programming | |
| J3 | P0.22 | Digital I/O | General purpose I/O | |
| J4 | VDD | Power | Power supply | |
| J5 | P0.17 | Digital I/O | General purpose I/O | |
| J6 | P0.14 | Digital I/O | General purpose I/O | |
| J7 | D+ | USB | USB D+ | |
| J8 | DECUSB | Power | USB 3.3 V regulator supply decoupling | |
| J9 | VSS | Power | Ground |