nRF52840
Product Specification
v1.1
4413_417 v1.1 / 2019-02-28
Downloaded from
Arrow.com.
Feature list
Features:
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Bluetooth
5, IEEE 802.15.4-2006, 2.4 GHz transceiver
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-95 dBm sensitivity in 1 Mbps
Bluetooth
low energy mode
-103 dBm sensitivity in 125 kbps
Bluetooth
low energy mode (long range)
-20 to +8 dBm TX power, configurable in 4 dB steps
On-air compatible with nRF52, nRF51, nRF24L, and nRF24AP Series
Supported data rates:
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Bluetooth
5: 2 Mbps, 1 Mbps, 500 kbps, and 125 kbps
IEEE 802.15.4-2006: 250 kbps
Proprietary 2.4 GHz: 2 Mbps, 1 Mbps
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Flexible power management
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1.7 V to 5.5 V supply voltage range
On-chip DC/DC and LDO regulators with automated low
current modes
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1.8 V to 3.3 V regulated supply for external components
Automated peripheral power management
Fast wake-up using 64 MHz internal oscillator
0.4 µA at 3 V in System OFF mode, no RAM retention
1.5 µA at 3 V in System ON mode, no RAM retention, wake on
RTC
1 MB flash and 256 kB RAM
Advanced on-chip interfaces
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USB 2.0 full speed (12 Mbps) controller
QSPI 32 MHz interface
High-speed 32 MHz SPI
Type 2 near field communication (NFC-A) tag with wake-on
field
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Touch-to-pair support
Single-ended antenna output (on-chip balun)
128-bit AES/ECB/CCM/AAR co-processor (on-the-fly packet encryption)
4.8 mA peak current in TX (0 dBm)
4.6 mA peak current in RX
RSSI (1 dB resolution)
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ARM Cortex -M4 32-bit processor with FPU, 64 MHz
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212 EEMBC CoreMark score running from flash memory
52 µA/MHz running CoreMark from flash memory
Watchpoint and trace debug modules (DWT, ETM, and ITM)
Serial wire debug (SWD)
Programmable peripheral interconnect (PPI)
48 general purpose I/O pins
EasyDMA automated data transfer between memory and
peripherals
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Rich set of security features
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ARM TrustZone Cryptocell 310 security subsystem
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NIST SP800-90A and SP800-90B compliant random number generator
AES-128: ECB, CBC, CMAC/CBC-MAC, CTR, CCM/CCM*
Chacha20/Poly1305 AEAD supporting 128- and 256-bit key size
SHA-1, SHA-2 up to 256 bits
Keyed-hash message authentication code (HMAC)
RSA up to 2048-bit key size
SRP up to 3072-bit key size
ECC support for most used curves, among others P-256 (secp256r1) and •
Ed25519/Curve25519
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Application key management using derived key model
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Nordic SoftDevice ready with support for concurrent multi-
protocol
12-bit, 200 ksps ADC - 8 configurable channels with programmable
gain
64 level comparator
15 level low-power comparator with wake-up from System OFF
mode
Temperature sensor
4x 4-channel pulse width modulator (PWM) unit with EasyDMA
Audio peripherals: I2S, digital microphone interface (PDM)
5x 32-bit timer with counter mode
Up to 4x SPI master/3x SPI slave with EasyDMA
Up to 2x I2C compatible 2-wire master/slave
2x UART (CTS/RTS) with EasyDMA
Quadrature decoder (QDEC)
3x real-time counter (RTC)
Single crystal operation
Package variants
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aQFN 73 package, 7 x 7 mm
WLCSP93 package, 3.544 x 3.607 mm
™
Secure boot ready
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Flash access control list (ACL)
Root-of-trust (RoT)
Debug control and configuration
Access port protection (CTRL-AP)
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Secure erase
4413_417 v1.1
Downloaded from
Arrow.com.
ii
Feature list
Applications:
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Advanced computer peripherals and I/O devices
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Mouse
Keyboard
Multi-touch trackpad
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Internet of things (IoT)
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Smart home sensors and controllers
Industrial IoT sensors and controllers
Interactive entertainment devices
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Remote controls
Gaming controllers
Advanced wearables
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Health/fitness sensor and monitor devices
Wireless payment enabled devices
4413_417 v1.1
Downloaded from
Arrow.com.
iii
Contents
Feature list
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ii
1
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Revision history
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About this document
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2.1 Document naming and status
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2.2 Peripheral naming and abbreviations
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2.3 Register tables
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2.3.1 Fields and values
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2.4 Registers
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2.4.1 DUMMY
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3
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Block diagram
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Core components
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4.1 CPU
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4.1.1 Floating point interrupt
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4.1.2 CPU and support module configuration
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4.1.3 Electrical specification
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4.2 Memory
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4.2.1 RAM - Random access memory
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4.2.2 Flash - Non-volatile memory
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4.2.3 Memory map
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4.2.4 Instantiation
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4.3 NVMC — Non-volatile memory controller
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4.3.1 Writing to flash
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4.3.2 Erasing a page in flash
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4.3.3 Writing to user information configuration registers (UICR)
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4.3.4 Erasing user information configuration registers (UICR)
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4.3.5 Erase all
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4.3.6 Access port protection behavior
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4.3.7 Partial erase of a page in flash
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4.3.8 Cache
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4.3.9 Registers
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4.3.10 Electrical specification
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4.4 FICR — Factory information configuration registers
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4.4.1 Registers
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4.5 UICR — User information configuration registers
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4.5.1 Registers
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4.6 EasyDMA
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4.6.1 EasyDMA error handling
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4.6.2 EasyDMA array list
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4.7 AHB multilayer
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4.8 Debug and trace
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4.8.1 DAP - Debug access port
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4.8.2 CTRL-AP - Control access port
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4.8.3 Debug interface mode
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4.8.4 Real-time debug
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4.8.5 Trace
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4413_417 v1.1
Downloaded from
Arrow.com.
iv
5
Power and clock management
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5.1 Power management unit (PMU)
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5.2 Current consumption
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5.2.1 Electrical specification
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5.3 POWER — Power supply
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5.3.1 Main supply
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5.3.2 USB supply
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5.3.3 System OFF mode
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5.3.4 System ON mode
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5.3.5 RAM power control
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5.3.6 Reset
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5.3.7 Registers
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5.3.8 Electrical specification
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5.4 CLOCK — Clock control
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5.4.1 HFCLK controller
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5.4.2 LFCLK controller
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5.4.3 Registers
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5.4.4 Electrical specification
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Peripherals
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107
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6.1 Peripheral interface
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6.1.1 Peripheral ID
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6.1.2 Peripherals with shared ID
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6.1.3 Peripheral registers
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6.1.4 Bit set and clear
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6.1.5 Tasks
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6.1.6 Events
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6.1.7 Shortcuts
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6.1.8 Interrupts
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6.2 AAR — Accelerated address resolver
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6.2.1 EasyDMA
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6.2.2 Resolving a resolvable address
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6.2.3 Use case example for chaining RADIO packet reception with address resolution using AAR
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6.2.4 IRK data structure
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6.2.5 Registers
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6.2.6 Electrical specification
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6.3 ACL — Access control lists
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6.3.1 Registers
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6.4 CCM — AES CCM mode encryption
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6.4.1 Key-steam generation
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6.4.2 Encryption
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6.4.3 Decryption
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6.4.4 AES CCM and RADIO concurrent operation
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6.4.5 Encrypting packets on-the-fly in radio transmit mode
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6.4.6 Decrypting packets on-the-fly in radio receive mode
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6.4.7 CCM data structure
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6.4.8 EasyDMA and ERROR event
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6.4.9 Registers
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6.4.10 Electrical specification
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6.5 COMP — Comparator
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6.5.1 Differential mode
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6.5.2 Single-ended mode
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6.5.3 Registers
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6.5.4 Electrical specification
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4413_417 v1.1
Downloaded from
Arrow.com.
v
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