EFM8BB2 Datasheet, PDF (12/55 Pages) Silicon Laboratories – The EFM8BB2 highlighted features are listed below

4. Electrical Characteristics
EFM8BB2 Data Sheet
Electrical Characteristics
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
11, unless stated otherwise.
4.1.1 Recommended Operating Conditions
Table 4.1. Recommended Operating Conditions
Parameter
Symbol
Test Condition
Operating Supply Voltage on VDD V_DD
Operating Supply Voltage on VRE- V_REGIN
GIN
System Clock Frequency
f_SYSCLK
Operating Ambient Temperature T_A
Note:
1. All voltages with respect to GND.
2. GPIO levels are undefined whenever VDD is less than 1 V.
Min
Typ
Max
Unit
2.2
—
3.6
V
3.0
—
5.25
V
0
—
50
MHz
-40
—
85
°C
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