Data Sheet

6221B-UUC
FN-LINK TECHNOLOGY LIMITED Proprietary & Confidential
Information
1
1 Overview
1.1 Introduction
The 6221B-UUC is a low-cost and low-power consumption module which has all of the
Wi-Fi functionalities. It is based on Realtek RTL8821CU chipset, a highly-integrated
IEEE 802.11a/b/g/n/ac MAC/Baseband/RF WLAN and Bluetooth Baseband/RF single
chip. For Wireless LAN (WLAN) operation, this module supports 1-stream 802.11ac
solution with Multi-user MIMO STA mode with USB2.0 network interface controller. For
Bluetooth operation, it supports Bluetooth 2.1/4.2.
6221B-UUC complies with IEEE 802.11a/b/g/n/ac standard and it can achieve up to a
speed of 433.3Mbps with single stream in 802.11ac to connect to the WLAN.
This compact module is a total solution for a combination of Wi-Fi and BT technologies.
1.2 Features
 Highly-integrated module for 5G 802.11ac, or 2.4G/5G 802.11n WLAN applications.
 Maximum PHY data rate up to 86.7MHz using 20MHz bandwidth, 200Mbps using
40Mhz bandwidth and 433.3Mbps using 80Mhz bandwidth.
 Backward compatible with 802.11a/b/g device.
 Support IEEE 802.11e QoS Enhancement and 802.11i (WPA, WPA2).
 Support IEEE 802.11h DFS.
 Wi-Fi Direct supports wireless peer to peer applications.
 Supports Bluetooth 4.2 and backward compatible with Bluetooth 2.1 + EDR.
 Bluetooth 4.0 Dual Mode support: Simultaneous LE and BR/EDR.
 Supports Bluetooth Low Energy.
 Integrated internal Class 1, Class 2 and Class 3 PA for Bluetooth.
 Enhanced BT/Wi-Fi Coexistence Control to improve transmission quality in different
profiles.
 USB Multi-Function for both BT and WLAN.
 Single external power source 3.3V only.