EFM8UB1 Datasheet, PDF (14/59 Pages) Silicon Laboratories – The EFM8UB1 highlighted features are listed below

4.1.2 Power Consumption
Table 4.2. Power Consumption
Parameter
Symbol Test Condition
Min
Digital Core Supply Current
Normal Mode-Full speed with code I_DD
F_SYSCLK = 48 MHz ²
—
executing from flash
F_SYSCLK = 24.5 MHz ²
—
F_SYSCLK = 1.53 MHz ²
—
F_SYSCLK = 80 kHz ³
—
Idle Mode-Core halted with periph- I_DD
F_SYSCLK = 48 MHz ²
—
erals running
F_SYSCLK = 24.5 MHz ²
—
F_SYSCLK = 1.53 MHz ²
—
F_SYSCLK = 80 kHz ³
—
Suspend Mode-Core halted and I_DD
LFO Running
—
high frequency clocks stopped,
Supply monitor off.
LFO Stopped
—
Snooze Mode-Core halted and I_DD
LFO Running
—
high frequency clocks stopped.
Regulator in low-power state, Sup-
LFO Stopped
—
ply monitor off.
Stop Mode—Core halted and all I_DD
—
clocks stopped,Internal LDO On,
Supply monitor off.
Shutdown Mode—Core halted and I_DD
—
all clocks stopped,Internal LDO
Off, Supply monitor off.
Analog Peripheral Supply Currents
High-Frequency Oscillator 0
I_HFOSC0 Operating at 24.5 MHz,
—
T_A = 25 °C
High-Frequency Oscillator 1
I_HFOSC1 Operating at 48 MHz,
—
T_A = 25 °C
Low-Frequency Oscillator
I_LFOSC
Operating at 80 kHz,
—
T_A = 25 °C
EFM8UB1 Data Sheet
Electrical Specifications
Typ
Max
Unit
8.9
9.8
mA
4.3
4.9
mA
600
—
μA
145
—
μA
6
6.6
mA
2.8
3.2
mA
440
—
μA
130
—
μA
125
—
μA
120
—
μA
25
—
μA
20
—
μA
120
—
μA
0.2
—
μA
105
—
μA
850
—
μA
4
—
μA
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