Keil Logo Arm Logo

Nordic Semiconductor nRF51422_xxAB

ARM Cortex-M0, 16 MHz, 128 kB ROM, 16 kB RAM

nRF51422_xxAB is a microcontroller from the NRF51 Series family of microcontrollers with 128kB of Flash and 16kB of RAM ideally fitted for the S210 ANT protocol stack and proprietary 2.4GHz protocol stacks, including Gazell, all available free of charge in the nRF51 Software Development Kit.

Core ARM Cortex-M0, 16 MHz
  • Processor:ARM Cortex-M0, 16 MHz
  • Cryptographic Engine:128 -bit AES Electronic Codebook Encryption Peripheral
  • RNG:True Random Number Generator
Memory 16 kB RAM, 128 kB ROM
  • ROM:128 kB
  • RAM:16 kB
  • Additional Memory:131072 byte Flash
  • Additional Memory:16384 byte RAM
Clock & Power 1.8 V .. 3.6 V, 16 MHz
  • External Oscillator:16 MHz 32 MHz External Crystal Oscillator
  • Internal RC:16 MHz Internal RC Oscillator
  • Supply Voltage:1.8 V .. 3.6 V Operating Voltage
  • Maximum Clock Frequency:16 MHz
  • RTC:32 kHz RTC with 3 Capture/Compare registers
Communication SPI, UART, Other
  • SPI:2 x SPI Master
  • SPI:1 x SPI Slave
  • UART:1 x Universal Asynchronous Receiver/Transmitter
  • Other:2 x I2C compatible Master Two-Wire Interface
  • Other:1 x Quadrature Decoder
  • Other:1 x 2.4 GHz RF transceiver for Bluetooth Low energy (BLE), ANT and propietary protocols
Timer/Counter/PWM 1 x 32-bit Timer, 2 x 16-bit Timer
  • Watchdog:1 x Watchdog Timer
  • Timer/Counter:1 x 32-bit Timer/Counter
  • Timer/Counter:2 x 16-bit Timer/Counter
Analog 8-channel 10 bit ADC, 1 x Low Power Comparator
  • ADC:8-channel x 10 bit ADC
  • Temperature Sensor:1 x Temperature Sensor
  • Other:1 x Low Power Comparator
I/O & Package -25 °C .. 75 °C, 48-QFN
  • Operating Temperature Range:-25 °C .. 75 °C Operating Temperature Range
  • I/Os:32 General Purpose IOs
  • I/Os:8 Analog IOs
  • Package, QFN:48-pad QFN
  • Package, CSP:56-ball
  • Package, CSP:62-ball
Development Tools
CMSIS Drivers No CMSIS-Driver in Device Family Pack.
Keil logo ARM logo
Important information

This site uses cookies to store information on your computer. By continuing to use our site, you consent to our cookies.

Change Settings

Privacy Policy Update

ARM’s Privacy Policy has been updated. By continuing to use our site, you consent to ARM’s Privacy Policy. Please review our Privacy Policy to learn more about our collection, use and transfers
of your data.