NRF52840-dat
| Feature | nRF52805 | nRF52810 | nRF52811 | nRF52820 | nRF52832 | nRF52833 | nRF52840 | nRF5340 |
|---|---|---|---|---|---|---|---|---|
| Bluetooth 5.3 | X | X | X | X | X | X | X | X |
| Bluetooth 2 Mbps | X | X | X | X | X | X | X | X |
| Bluetooth Long Range | X | X | x | x | x | |||
| Bluetooth Direction Finding | X | X | X | x | ||||
| Bluetooth LE Audio | X | |||||||
| Bluetooth mesh | x | x | x | x | X | |||
| Thread | X | X | x | x | X | |||
| Zigbee | X | x | x | X | ||||
| Matter | X | X |
nRF52840 Features
- 32-bit ARM® Cortex®-M4F processor, 64 MHz
- 1 MB Flash, 256 KB RAM
- Bluetooth 5, Bluetooth mesh, Thread, Zigbee, 802.15.4, ANT, proprietary 2.4 GHz
- USB 2.0 full-speed (12 Mbps) device
- NFC-A tag support
- 48 programmable GPIOs
- SPI, I2C, UART, PWM, PDM, I2S, QSPI, and more
- 12-bit ADC, comparator, temperature sensor
- Crypto: AES, ECB, CCM, AAR, RNG, SHA-256
- On-chip DC-DC and LDO regulators
- Supply voltage: 1.7 V to 3.6 V
- Operating temperature: -40°C to +85°C
- Package: QFN73, 7x7 mm
- Arm TrustZone CryptoCell-310 security
- Flexible power management and low power consumption
- Direct Memory Access (DMA)
- Programmable Peripheral Interconnect (PPI)
- EasyDMA for peripherals
- 8/9/10/11/12-bit ADC, 200 ksps
- 4x 32-bit timers, RTC, watchdog, and more
SDK
drive
Pin Definitions
NRF52840 Pinout Table
| Pin Name | Default Func | Alt Func | Notes |
|---|---|---|---|
| P0.00 | GPIO | *XL1, ADC, NFC | |
| P0.01 | GPIO | *XL2, ADC, NFC | |
| P0.02 | GPIO | ADC, NFC | |
| P0.03 | GPIO | ADC, NFC | |
| P0.04 | GPIO | ADC, NFC | |
| P0.05 | GPIO | ADC, NFC | |
| P0.06 | GPIO | ADC, NFC | |
| P0.07 | GPIO | ADC, NFC | |
| P0.08 | GPIO | ||
| P0.09 | GPIO | NFC1 | NFC antenna option |
| P0.10 | GPIO | NFC2 | NFC antenna option |
| P0.11 | GPIO | ||
| P0.12 | GPIO | ||
| P0.13 | GPIO | ||
| P0.14 | GPIO | ||
| P0.15 | GPIO | ||
| P0.16 | GPIO | ||
| P0.17 | GPIO | ||
| P0.18 | RESET | GPIO | REST pin |
| P0.19 | GPIO | ||
| P0.20 | GPIO | ||
| P0.21 | GPIO | ||
| P0.22 | GPIO | ||
| P0.23 | GPIO | ||
| P0.24 | GPIO | ||
| P0.25 | GPIO | ||
| P0.26 | GPIO | ||
| P0.27 | GPIO | ||
| P0.28 | GPIO | ADC | |
| P0.29 | GPIO | ADC | |
| P0.30 | GPIO | ADC | |
| P0.31 | GPIO | ADC | |
| P1.00 | GPIO | ||
| P1.01 | GPIO | ||
| P1.02 | GPIO | ||
| P1.03 | GPIO | ||
| P1.04 | GPIO | ||
| P1.05 | GPIO | ||
| P1.06 | GPIO | ||
| P1.07 | GPIO | ||
| P1.08 | GPIO | ||
| P1.09 | GPIO | ||
| P1.10 | GPIO | Button | |
| P1.11 | GPIO | ||
| P1.12 | GPIO | ||
| P1.13 | GPIO | ||
| P1.14 | GPIO | ||
| P1.15 | GPIO |
The nRF52840 has two TWI (Two-Wire Interface/I2C) master instances: TWIM0 and TWIM1. You can configure them to use any pins through the Pin Selection Registers (PSEL). - I2C-dat
If you are using a development board, the software libraries (like Arduino or Zephyr) usually default to these:
nRF52840 Development Kit (PCA10056):
- SDA: P0.26
- SCL: P0.27
Adafruit Feather nRF52840:
- SDA: P0.25 (Physical Pin 25)
- SCL: P0.26 (Physical Pin 26)
solutions
NRF52840 SCH
- button == P1.10
REST == P0.18/RESET
I2C == P0.26 / P0.27
- BAT_ADC == P0.04
- SPI == P1.12 ~ P1.15
SCH2 Module
