Nordic Semiconductor introduces the nRF54LS05A and nRF54LS05B, ultra-low-power Bluetooth Low Energy (LE) Arm Cortex-M33 microcontrollers designed for use as primary wireless SoCs in straightforward applications, such as sensors, tags, beacons, remotes, and PC peripherals, or as Bluetooth LE companion devices in more complex products.
Clocked at 128 MHz, both SoCs feature Nordic’s 4th-generation Bluetooth LE radio, analog/digital interfaces, and advanced security. Accompanying their 0.5 MB of Non-Volatile Memory (NVM), the nRF54LS05A offers 64 KB of RAM, whereas the nRF54LS05B contains 96 KB.
Nordic Semi nRF54LS05A/B specifications:
- CPU
- Arm Cortex-M33 core @ 128 MHz
- Performance – 250 CoreMark/mA @ 3V, 500 CoreMark
- Memory
- nRF54LS05A – 64 KB RAM
- nRF54LS05B – 96 KB RAM
- Storage – 508 KB NVM
- Wireless
- Bluetooth LE – 1 Mbps, 2 Mbps
- 2.4 GHz proprietary – GFSK: 4 Mbps, 2 Mbps, 1 Mbps
- Single-ended antenna output (on-chip balun)
- 128-bit AES/ECB/CCM/AAR coprocessor
- Tx power – Configurable from -10 dBm to +4 dBm in 1 dBm step size
- Rx Sensitivity – -96 dBm (1Mbps Bluetooth LE)
- Peripherals
- Up to 37x GPIO pins (8 MHz ports)
- 3x serial interfaces with EasyDMA supporting I2C, SPI controller/peripheral, and UART
- SPI up to 8 MHz (SPIM, SPIS)
- TWI up to 400 kHz and I2C compatible (TWIM, TWIS)
- UART up to 1 Mbps (UARTE)
- 4-channel SAADC: 14-bit at 31.25 ksps (oversampled), 12-bit at 125 ksps (oversampled), 10-bit at up