USBXpress – USB to UART Bridge QFN20

CP2102N-A02-GQFN20R – USB to UART Bridge Controller – Silicon Labs

Simplify serial communication with the CP2102N-A02-GQFN20R USB bridge IC from Silicon Labs. This compact interface solution enables seamless USB-to-UART conversion, offering plug-and-play connectivity for embedded systems while minimizing development time. Engineered for reliability and low power consumption, it’s ideal for IoT devices, industrial controls, and consumer electronics requiring robust data transfer.

Key Features

• Protocol: USB 2.0 compliant interface
• Function: USB to UART serial bridge
• Voltage Range: 3V to 3.6V operation
• Power Efficiency: Ultra-low 9.5mA supply current
• Temperature Range: -40°C to 85°C industrial operation
• Compact Design: 20-QFN (3×3) exposed pad package

Technical Details

Part of Silicon Labs’ USBXpress™ series, this active-status IC features integrated USB termination resistors and clock recovery circuitry. The UART interface supports configurable baud rates up to 3 Mbps with full modem control signals. Its 20-WFQFN package ensures thermal stability in harsh environments while meeting USB-IF standards. The CP2102 base architecture provides proven compatibility with major operating systems without external drivers.

Common Applications

• Industrial automation controllers and sensors
• IoT gateway devices and edge computing modules
• Consumer electronics firmware programming interfaces
• Medical diagnostic equipment data ports
• Embedded system development boards

About Silicon Labs

Silicon Labs is a global leader in secure, intelligent wireless technology for the IoT ecosystem. With over 25 years of innovation, they deliver silicon, software, and solutions that enable developers to create advanced connected devices. Their commitment to energy-efficient design and robust RF performance has positioned them as a preferred partner for mission-critical applications across industries.

The company maintains rigorous quality certifications including ISO 9001, ensuring consistent manufacturing excellence. Silicon Labs’ extensive technical support resources—including development kits, SDKs, and comprehensive documentation—accelerate product integration while reducing engineering overhead for customers worldwide.

About USB to UART Bridge Controllers

USB to UART bridge ICs serve as critical interface translators between modern USB hosts and legacy serial devices. They convert USB protocol signals into asynchronous serial data (UART), enabling communication with microcontrollers, sensors, and industrial equipment lacking native USB support. This functionality preserves investments in existing serial-based hardware while leveraging the universal connectivity of USB ports.

These integrated circuits simplify embedded designs by handling complex USB enumeration and signal conversion transparently. Advanced features like integrated voltage regulators, signal conditioning, and ESD protection—as seen in the CP2102N series—reduce component count and improve system reliability. Their plug-and-play operation makes them indispensable for prototyping, field updates, and device diagnostics across electronics sectors.

Packaging Options

Available in Tape & Reel (TR), Cut Tape (CT), and Digi-Reel® formats for automated assembly. Contact PCX for reel quantities and kitting services.

Frequently Asked Questions

Q: Does this IC require external drivers?
A: No, the CP2102N is certified for native driver support in Windows, macOS, and Linux operating systems.

Q: What cable configurations are supported?
A: It supports standard USB 2.0 Type-C or micro-USB connections with configurable UART signal mapping.

Q: Is the device compatible with 5V systems?
A: While operating at 3.3V, it features 5V-tolerant I/O pins for safe interfacing with higher voltage logic.

Q: Can it handle high-noise industrial environments?
A: Yes, with integrated EMI suppression and -40°C to 85°C operation, it meets industrial EMC standards.

Q: How does this differ from earlier CP2102 models?
A: The “N” revision offers enhanced ESD protection (up to 8kV) and reduced power consumption versus legacy versions.

Q: Are evaluation boards available for this IC?
A: PCX provides development kit recommendations—contact our technical support for compatible tools.

Note: Product images are representational. Refer to datasheets on PCXCo.com for exact dimensions and schematics.

Ready to Integrate?

Streamline your USB interface design with guaranteed authentic Silicon Labs components. Order CP2102N-A02-GQFN20R today for same-day shipping and expert technical support from PCX!