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> nRF SoftDevice Calculator > nRF PPI & EasyDMA > nRF Power Modes > nRF Timer & RTC Calculator > nRF Radio BLE Timing

nrf power modes

SYSTEM ONLINE

Current Consumption Simulator (nRF52)

nRF microcontrollers stand out with incredible energy-saving capabilities. They have two main sleep modes: System OFF (deep sleep, wake up only from RESET/GPIO pin, state lost except retained RAM) and System ON (sleep with RTC on for BLE operation).

Hardware Power Configuration

Enable hardware DC/DC converter (requires L1, L2, L3 coils)

Enable RTC (LFCLK 32.768 kHz) in System ON mode

How many KB of RAM should survive sleep (Retention)?

64 KB of RAM is retained

Current consumption: SYSTEM OFF

0.78 µA

Deepest sleep (Only GPIO pins can wake up the chip)

Current consumption: SYSTEM ON (Idle)

1.28 µA

Default mode during Bluetooth Low Energy operation

MODULE UNDER CONSTRUCTION

EXPECTED DEPLOYMENT: Q4 2026