USB to TTL CH340

The USB to TTL CH340 is a USB-to-serial converter module that uses the CH340 chip to convert USB signals to TTL (Transistor-Transistor Logic) level serial communication. It is commonly used to interface USB-enabled devices with TTL serial devices such as microcontrollers and development boards. This module provides a cost-effective and reliable solution for connecting TTL serial devices to a USB port on a computer.

Key Features:

• Chip: CH340
• Interface: USB to TTL serial (UART)
• Data Rate: Up to 2 Mbps
• Operating Voltage: 3.3V or 5V TTL levels (configurable)
• Driver Support: Compatible with major operating systems including Windows, macOS, and Linux
• Connector: Typically includes a USB Type-A or Type-B connector and TTL pins (TX, RX, VCC, GND)
• LED Indicators: Often includes LEDs to indicate power and data transmission

Technical Specifications:

• USB Interface: USB 2.0
• TTL Levels: 3.3V or 5V (depends on the module configuration)
• Data Rate: Up to 2 Mbps
• Driver Support: CH340 drivers for Windows, macOS, and Linux
• Pin Configuration:
  • TX: Transmit data
  • RX: Receive data
  • VCC: Power supply (3.3V or 5V)
  • GND: Ground
• Power Supply: Powered via USB (typically 5V from USB)

Applications:

• Microcontroller Programming: Used for programming and debugging microcontrollers that use TTL serial communication.
• Serial Communication: Facilitates communication between USB-equipped computers and serial devices.
• Embedded Systems: Connects embedded systems to PCs for data exchange and control.
• Prototyping: Commonly used in electronic prototypes to bridge the gap between USB and TTL serial interfaces.

Datasheet:
For detailed technical information, refer to the CH340 Datasheet, which provides comprehensive details on specifications, pin configuration, and operation.