Product Info

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