Wi-Fi&BT Module Series
FC21 Hardware Design
FC21_Hardware_Design 34 / 52
4
Electrical, Reliability and Radio
Characteristics
4.1. General Description
This chapter mainly introduces the electrical and the radio frequency characteristics of FC21 module,
which are listed in detail in the following chapters:
Electrical characteristics
I/O interface characteristics
Current consumption
RF performance
Electrostatic discharge
4.2. Electrical Characteristics
The following table shows the absolute maximum ratings.
Table 20: Absolute Maximum Ratings
The following table shows the recommended operating conditions for FC21 module.
Parameter
Min.
Max.
Unit
VDD_3V3
-0.3
3.46
V
VIO
-0.3
3.46
V
Digital I/O input voltage
-0.3
VIO+0.2
V