nRF51822 Product Brief Version 2.5
The Nordic protocol stacks are known as SoftDevices
and complement the nRF51 Series SoCs. All nRF51
Series are programmable with software stacks
available from Nordic Semiconductor. This brings
maximum flexibility to application development and
allows the latest stack version to be programmed
into the nRF51 Series SoC.
SPECIFICATIONS
RELATED PRODUCTS
Frequency band 2.4GHz ISM ( 2.40000 – 2.4835GHz)
On-air data rate 250 kbps, 1 Mbps or 2 Mbps
Modulation GFSK
Output power Programmable: +4 to -20dBm in 4dB steps
Sensitivity -93dBm Bluetooth low energy
-96dBm at 250kb
-90dBm at 1Mbs
-85dBm at 2Mbs
Radio current con-
sumption LDO at 1.8V
16mA – TX at +4dBM output power
10.5mA – TX at 0dBm output power
13mA – RX at 1Mbs
Radio current
consumption
DC-DC at 3V
10.5mA – TX at +4dBm output power
8.06mA – TX at 0dBm output power
9.7mA – RX at 1Mbs
Microcontroller 32-bit ARM Cortex M0
Program Memory 256kB/128kB Flash
RAM 32kB/16kB
Oscillators 16MHz crystal oscillator
16MHz RC oscillator
32kHz crystal oscillator
32kHz RC oscillator (±250 ppm)
System current
consumption
0.6µA – No RAM retention
1.2µA - 8k RAM retention
2.6µA – All peripherals in IDLE mode
Hardware Security 128-bit AES ECB/CCM/AAR co-processor
GPIO 31 configurable
Digital I/O X2 Hardware SPI master
2X 2-wire master
UART
Quadrature demodulator
Peripherals 10-bit ADC
RNG
Temperature sensor
RTC
PPI 16-channel
Voltage regulator LDO (1.8 to 3.6V),
LDO bypass (1.75 to 1.95V)
Buck DC/DC (2.1 to 3.6V)
Timers/counters 2 x 16 bit, 1 x 24bit, 2 x 24bit, RTC
Package options RoHS compliant 48-pin 6x6 QFN / 3 Ultra-compact
Wafer Level Chip Scale Package options (WLCSP),
Thin-CSP
nRF51 DK Development kit for Bluetooth low energy,
ANT and 2.4GHz applications
nRF51 Dongle Bluetooth low energy/ANT/2.4GHz development dongle
nRF51422 ANT/Bluetooth low energy multiprotocol SoC
Easy, fast and safe code development
The nRF51822 offers developers a clean separation between
application code development and embedded protocol stacks. This
means compile, link and run-time dependencies with the embedded
stack and associated de-bugging challenges are removed. The
Bluetooth low energy stack is a pre-compiled binary available from
Nordic Semiconductor, leaving application code to be compiled
stand-alone. The embedded stack interface uses an asynchronous
and event-driven model removing the need for RTOS frameworks.
OTA DFU
The nRF51822 is supported by a Over The Air Device Firmware
Upgrade (OTA-DFU) feature. This allows for in the field updates
of application software and SoftDevices.
Maximum re-use and easy migration
The devices in the nRF51 Series are pin compatible enabling
migration between technologies such as Bluetooth low energy
and ANT with no layout changes. The common HW architecture
ensures that one codebase can be re-used effortlessly between
nRF51 Series devices. Variants in the nRF51 Series enable simple
choices tailoring device selection to desired wireless protocol and
feature requirements with little or no changes.
SoftDevices
Application code
Bluetooth
low energy
Protocol
Stack
SoC
Gazell
Protocol
Stack
Development tools
Nordic Semiconductor provides a complete range of hardware
and software development tools for the nRF51 Series devices.
nRF51822 compatible SoftDevices
S130
Bluetooth low energy concurrent central/
peripheral/observer/broadcaster stack
Headquarters:
Trondheim, Norway
Tel: +47 72 89 89 00
For more information
Visit www.nordicsemi.com for the complete
product specification about this and any other
wireless ultra-low power products.
About Nordic Semiconductor
Nordic Semiconductor is a fabless semiconductor
company specializing in ultra-low power short-
range wireless communication. Nordic is a public
company listed on the Norwegian stock exchange.
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