nRF54LS05A System-on-Chip

Entry-level, ultra-low-power Bluetooth LE SoC

The nRF54L Series offers SoCs that combine an efficient MCU with ultra-low-power wireless connectivity. The nRF54LS05A and the larger-RAM option nRF54LS05B feature a Bluetooth LE radio and an entry-level peripheral set making them suitable as a main MCU for simple products such as, sensors, tags, beacons, remotes, and PC peripherals, as well as a Bluetooth companion device in larger systems alongside a larger MCU.

nRF54LS05A supports Bluetooth LE and 2.4 GHz proprietary protocols with data rates up to 4 Mbps for low-latency applications.

Performance highlights (preliminary)

  • Processing efficiency and performance: 250 CoreMark/mA (@ 3 V), 500 CoreMark®
  • Radio power consumption: 3.4 mA for RX and 4.8 mA for TX @ 0 dBm (@ 3 V)
  • Sleep modes  power consumption : from 0.6 μA to 1.2 μA (@ 3 V)
  • Maximum TX power: +4 dBm 
  • Sensitivity: -96 dBm (1M Bluetooth LE)


Key benefits

  • Reduced design complexity, size, and cost
  • Reliable and robust Bluetooth LE radio and stack
  • Extended battery life
  • SDK support with Bare Metal option to ease migration from nRF52 Series
  • Enables design flexibility with pin-to-pin compatible SoCs in the series
  • nRF Cloud support for device management, FOTA and more


The nRF54L Series

Key features
  • 128 MHz Arm® Cortex®-M33
  • 0.5 MB NVM and 64 KB RAM
  • Ultra-low-power 2.4 GHz radio
  • 3x SPI/TWI/UART
  • ADC, PWM and QDEC
  • Global RTC available in System OFF
  • Baseline security configuration designed to support compliance with regulatory requirements
  • Package options: QFN48
Documentation
Datasheet

QFN48 package

Applicable for nRF54LS05A and nRF54LS05B

Selected version
0.4

Changelog:

0.5

  • Updated values of components in matching network
  • Removed footprints for C2, C13, C16, R1 and FB2. Adjusting the impacted layout
  • C12 changed 10nF -> 2.2µF
  • Moved traces (NRESET, and rest of GPIOs on east side of the chip) to expand GND polygon between NRESET and south of L2 and L3.

0.4

  • The first published version