NRF51822 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – Multi-protocol Bluetooth Low Energy and 2.4GHz proprietary system-on-chip

nRF51822
Multi-protocol Bluetooth Low Energy and
2.4GHz proprietary system-on-chip
ULP wireless system-on-chip
The nRF51822 is a powerful multi-protocol single chip solution
for ULP wireless applications. It incorporates Nordic’s latest
best-in-class performance radio transceiver, an ARM Cortex
M0 CPU and 256kB flash + 16kB RAM memory. The nRF51822
supports Bluetooth® low energy and 2.4 GHz protocol stacks.
256kB
Flash
Timers / Counters
Analog I/O
Digital I/O
System Peripherals
16kB
RAM
Processor
16 MHz 32-bit
ARM Cortex-M0 CPU
Power
supply
GPIO
Radio
Oscillators
Multi-protocol 2.4GHz
Lower power and higher performance
The nRF51822 uses the 32-bit ARM Cortex M0 MCU, together
with extensive flash availability, 256kB in total, with 128kB
available for application development. Code density and execution
speed are considerably greater than for 8/16-bit platforms. The
Programmable Peripheral Interconnect (PPI) system provides
a 16-channel bus for direct and autonomous system peripheral
communication without CPU intervention. This brings predictable
latency times for peripheral to peripheral interaction and power
saving benefits associated with leaving the CPU idle. The device
has 2 global power modes ON/OFF, but all system blocks and
peripherals have individual power management control which
allows for an automatic switching RUN/IDLE for system blocks
based only on those required/not required to achieve particular
tasks.
The new radio forms the basis of the nRF51822’s performance.
The radio supports Bluetooth Low Energy and is on air compatible
with the nRF24L-series products from Nordic Semiconductor.
Output power is now scalable from a maximum of +4dBm down
to -20dBm in 4dB steps. Sensitivity is increased at every level
and offers sensitivity ranges (dependent on data rate) from -96 to
-85dBm, with -92.5dBm for Bluetooth low energy.
KEY FEATURES
• Multi-protocol 2.4GHz radio
• 32-bit ARM Cortex M0 processor
• 256kB flash/16kB RAM
• Software stacks available as downloads
• Pin compatible with other nRF51xxx series devices
• Application development independent from protocol stack
• Fully on-air compatible with nRF24L-series
• Programmable output power from +4dBm to -20dBm
• RSSI
• RAM mapped FIFOs using EasyDMA
• Dynamic on air payload length up to 256 Bytes
• Flexible and configurable 31 pin GPIO
• Programmable Peripheral Interface – PPI
• Simple ON/OFF global power modes
• Full set of digital interfaces including: SPI/2-wire/UART
• 10-bit ADC
• 128-bit AES ECB/CCM/AAR co-processor
• Quadrature demodulator
• Low cost external crystal 16MHz ± 40ppm
• Low power 16MHz crystal and RC oscillators
• Ultra low-power 32kHz crystal and RC oscillators
• Wide supply voltage range (1.8 V to 3.6 V)
• On-chip DC/DC buck converter
• Individual power management for all peripherals
• Package options: 48-pin 6x6 QFN
APPLICATIONS
• Bluetooth Smart applications
• Mobile phone accessories
• Computer peripherals
• CE remote controls for TV, STB and media systems
• Proximity and security alert tags
• Sports- and fitness sensors
• Healthcare and lifestyle sensors
• Game controllers for computers
• Toys and Electronic games
• Domestic/Industrial control and data-acquisition
• Smart RF tags for tracking and social interaction
• Audience response system
• Intelligent domestic appliances