RTL8720CN

Updated: 2026-07-20

Overview

The RTL8720CN is a highly integrated wireless communication chip developed by Realtek Semiconductor. It combines Wi-Fi and Bluetooth functionalities into a single chip, making it ideal for IoT and smart device applications. The chip supports dual-band Wi-Fi (2.4GHz and 5GHz) and Bluetooth 5.0, ensuring robust and efficient wireless connectivity. Designed for low-power operation, the RTL8720CN is suitable for battery-powered devices such as wearables and smart home products. Its compact form factor and high performance make it a popular choice among manufacturers looking to add wireless capabilities to their embedded systems.

Structure and Working Principle

The RTL8720CN integrates a Wi-Fi transceiver, Bluetooth radio, and baseband processor into a single chip. It operates on the IEEE 802.11 a/b/g/n/ac standards for Wi-Fi and supports Bluetooth 5.0 for short-range communication. The chip uses advanced modulation techniques to maximize data throughput and minimize interference. Internally, the RTL8720CN features a dual-core processor that handles both Wi-Fi and Bluetooth protocols simultaneously. This architecture allows for seamless switching between Wi-Fi and Bluetooth modes, ensuring optimal performance in diverse operating environments. The chip also includes built-in security features such as WPA3 encryption to protect data transmission.

Key Features

The RTL8720CN stands out for its dual-band Wi-Fi support, enabling devices to connect to both 2.4GHz and 5GHz networks. This flexibility reduces congestion and improves performance in crowded wireless environments. The chip also supports Bluetooth 5.0, which offers longer range and higher data rates compared to previous versions. Another notable feature is its low power consumption, which makes it ideal for battery-operated devices. The chip includes power-saving modes that extend battery life without compromising performance. Additionally, the RTL8720CN supports advanced coexistence algorithms to minimize interference between Wi-Fi and Bluetooth signals.

Application Areas

The RTL8720CN is widely used in IoT devices, including smart home products like thermostats, security cameras, and lighting systems. Its dual-band Wi-Fi and Bluetooth capabilities make it suitable for wearables such as fitness trackers and smartwatches. In industrial settings, the chip is employed in wireless sensors and monitoring systems. Its robust performance and low power consumption are critical for applications requiring reliable long-term operation. The RTL8720CN is also found in consumer electronics like tablets and portable gaming devices, where seamless wireless connectivity is essential.

Maintenance and Precautions

To ensure optimal performance, the RTL8720CN requires proper firmware updates. Manufacturers should regularly check for updates from Realtek to address bugs and improve functionality. Thermal management is another critical consideration, as excessive heat can degrade performance and reduce the chip's lifespan. When integrating the RTL8720CN into a design, it's important to follow the manufacturer's guidelines for PCB layout and antenna placement. Poor design can lead to signal degradation and reduced range. Additionally, developers should test the chip in real-world conditions to identify and mitigate potential issues early in the design process.

B2B Procurement Guide

When procuring the RTL8720CN, buyers should verify the chip's compatibility with their target operating systems and applications. It's advisable to source components from authorized distributors to ensure authenticity and reliable supply. Buyers should also consider the chip's lead time and minimum order quantities, as these can vary depending on market demand. Price negotiations should take into account volume discounts, especially for large orders. Buyers should also inquire about technical support and documentation availability, as these resources are crucial for successful integration. Finally, it's recommended to evaluate alternative chips in case of supply chain disruptions.