CP2102 USB 2.0 to TTL, with Jumper Wires, USB to TTL Downloader for STC Module, Compatible with Arduino, ESP32, Ideal for PCB Beginners

Product Description

Product Overview

The CP2102 is a highly integrated USB-to-UART bridge controller that simplifies the task of updating RS-232 designs to USB with minimal components and PCB space.

Key Features:

• USB 2.0 Full-Speed Controller: Compliant with USB 2.0, supports data transfer rates up to 12 Mbps.
• Integrated USB Transceiver: No external resistors are required.
• On-Chip EEPROM: Stores USB vendor ID, product ID, serial number, and other identifiers.
• On-Chip Voltage Regulator: Outputs 3.3V for powering external components.
• Virtual COM Port Drivers: Allows the CP2102 to appear as a COM port to PC applications.
• UART Interface: Supports data formats, baud rates, and handshake signals as per RS-232 standards.
• Low Power Consumption: Includes suspend mode for power management.
• Compact Package: Typically comes in a 5 x 5 mm QFN-28 package.

Specifications

• USB Specification: USB 2.0 compliant, full-speed (12 Mbps) 
• Integrated USB Transceiver: No external resistors required 
• Power Supply: Self-powered (3.0 to 3.6 V) or USB bus powered (4.0 to 5.25 V) 
• Package: 28-pin QFN (5x5 mm) 
• Operating Temperature: -40 to +85 °C 
• Voltage Regulator: On-chip 5 to 3.3 V voltage regulator 
• UART Interface: Supports data bits (5, 6, 7, 8), stop bits (1, 1.5, 2), and parity (odd, even, mark, space, none) 

Applications

• Embedded Systems: For devices that require USB communication.
• Industrial Automation: In systems that need reliable serial communication.
• Medical Equipment: For equipment that requires USB interface capabilities.
• Point-of-Sale (POS) Terminals: For POS systems that need to connect to a computer or network.
• General Serial Communication: In any application that requires RS-232 compatibility and USB interface.

notes

1. Level Shifting: The CP2102 operates at 3.3V logic levels, so if you are connecting it to a 5V system like some microcontrollers, ensure you use level shifting to avoid damaging the chip.

2. Power Management: Be aware of the power requirements and ensure that the voltage supplied to the module is within the specified range to prevent damage.

3. USB Connection: Ensure a reliable USB connection is established before transmitting data to avoid communication errors.

4. Driver Installation: Make sure the appropriate drivers (either Virtual COM Port or USBXpress) are installed on your PC or device to ensure compatibility.

5. Baud Rate Settings: Configure the baud rate and other UART settings to match the requirements of the system you are communicating with.