User's Manual

Wi-Fi&Bluetooth Module Series
FC41D_Hardware_Design
9 / 46
2 Product Concept
2.1. General Description
FC41D is a low-power, cost-effective Bluetooth 5.2 and Wi-Fi 802.11b/g/n module, which integrates the
hardware and software resources required for Wi-Fi and Bluetooth applications. It can support AP and
STA of Wi-Fi connection, and low-power Bluetooth connection. It is very suitable for low flow control and
data acquisition applications such as home intelligent terminal, industrial application and so on.
FC41D module has a built-in Wi-Fi and bluetooth ultra-high integration microcontroller, which provides the
necessary ability to calculate and stable Wi-Fi and Bluetooth connectivity for IoT data terminals. It
includes:
 120 MHz ARM kernel
 256K Byte RAM
 2M Byte Flash
 A controller that complies with IEEE 802.11 b/g/n and Bluetooth 5.2 standards
With a compact profile of 18.0 mm × 20.0 mm × 2.2 mm, FC41D is powered by a single 3.3 V power
supply. It has a total of 27 LCC pins.
2.2. Key Features
The following table describes the key features of FC41D module.
Table 2: Key Features
Features
Details
Power Supply
 VBAT Power Supply:
Supply voltage range: 3.0–3.6 V
Typical supply voltage: 3.3 V
Operating Frequency
 2.4 GHz: 2.412–2.484 GHz
 Bluetooth: 2.402–2.480 GHz