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8
2.
The current consumption figures in RX mode are for cases when the peripherals are disabled and the
CPU is idle.
Table 6 Current Consumption Depending on Work Modes
Note:
●
When measuring Modem-sleep power consumption data, the CPU is in working state and the cache is in
idle state.
●
In the scenario where Wi-Fi is turned on, the chip will switch between Active and Modem-sleep modes,
and the power consumption will also change between the two modes.
●
In Modem-sleep mode, the CPU frequency changes automatically, and the frequency depends on the CPU
load and peripherals used.
●
In Deep-sleep mode, only when the ULP coprocessor is in working state, GPIO and low-power I2C can be
operated.
●
When the system is in the ultra-low power sensor monitoring mode, the ULP coprocessor or sensor works
periodically. The touch sensor works with a 1% duty cycle, and the system power consumption is typically
22 µA.
Work mode
Description
Typ
Modem-sleep
CPU is working
240 MHz
22 mA
160 MHz
17 mA
Normal speed
：
80 MHz
14 mA
Light-sleep
—
550
µ
A
Deep-sleep
ULP coprocessor is working
235
µ
A
Ultra-low power sensor monitoring mode
22
µ
A @1% duty
RTC timer + RTC memory
25
µ
A
Only the RTC timer is working
20
µ
A
close
CHIP_PU pin is pulled low, the chip is in the off state
1
µ
A
