CP2102 USB to UART Bridge Controller – USB to Serial Interface Chip for Embedded Communication
The CP2102 is a high-performance USB to UART bridge controller that provides seamless USB to serial communication. Ideal for embedded systems, microcontrollers, and USB-to-TTL converter modules, it offers reliable data transmission with minimal external components.
 
Key Features:
USB to UART Functionality
Converts USB signals to asynchronous serial (UART) signals with TX/RX lines.
Integrated Clock & EEPROM
Requires no external crystal or EEPROM, simplifying PCB design.
High Compatibility
Supports major operating systems including Windows, Linux, and macOS.
Full-Speed USB 2.0 Support
Operates at up to 12 Mbps USB speed and supports baud rates up to 1 Mbps.
Small QFN/SMT Package
Space-efficient design for compact PCBs and surface-mount applications.
On-Chip Voltage Regulator
Provides 3.3V output from USB 5V input for powering external circuits.
 
Applications:
USB-to-TTL converter modules
Programming and debugging microcontrollers
Interfacing ESP8266, ESP32, STM32, and Arduino boards
USB communication for IoT and embedded systems
Serial communication tools and terminal applications
 
Package Includes:
1 × CP2102 USB to UART Interface IC
 
Specifications:
Chipset: CP2102
Interface: USB 2.0 (Full-Speed)
UART Baud Rate: Up to 1 Mbps
Operating Voltage: 3.3V (core), 5V tolerant I/O
Internal Regulator: 3.3V output (100 mA max)
Package Type: QFN-28 / SMT
Driver Support: Windows, Linux, macOS
ESD Protection: Integrated on-chip
 
Dimensions:
Length: 5 mm
Width: 5 mm
Height: 0.9 mm
 
Weight: 0.2 g
 
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Shipping Weight = 20 grams