EFM8LB1 Datasheet, PDF (14/70 Pages) Silicon Laboratories – The EFM8LB1 device family are fully integrated, mixed-signal system-on-a-chip MCUs. Highlighted features are listed below

4. Electrical Specifications
EFM8LB1 Data Sheet
Electrical Specifications
4.1 Electrical Characteristics
All electrical parameters in all tables are specified under the conditions listed in Table 4.1 Recommended Operating Conditions on page
13, unless stated otherwise.
4.1.1 Recommended Operating Conditions
Table 4.1. Recommended Operating Conditions
Parameter
Symbol
Operating Supply Voltage on VDD V_DD
Operating Supply Voltage on VIO^{2, V}IO
3
Test Condition
Min
Typ
Max
Unit
2.2
—
3.6
V
TBD
—
V_DD
V
System Clock Frequency
f_SYSCLK
0
—
73.5
MHz
Operating Ambient Temperature T_A
-40
—
105
°C
Note:
1. All voltages with respect to GND
2. In certain package configurations, the VIO and VDD supplies are bonded to the same pin.
3. GPIO levels are undefined whenever VIO is less than 1 V.
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