CH340K

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CH340K

+Nomenclature

  • FabricantWch (qinheng, Jiangsu)

  • Pièce fabricant #CH340K

  • Fiche technique CH340K DataSheet

  • En stock29440

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Spécifications

Attribut Valeur
Manufacturer WCH(Jiangsu Qin Heng)
Package / Case ESSOP-10-150mil-1mm
Operating Temperature -20℃~+70℃
Voltage - Supply 3.3V
Applications Function USB to serial
Protocol USB 2.0
Data Rate 2Mbps

Présentation

Description

The CH340K is a USB-to-serial interface chip developed by WCH (Winchiphead). This chip is widely used for converting USB to serial communication, enabling devices to communicate with computers via USB ports. The CH340K supports various serial interfaces, including UART, enabling seamless data transmission between devices such as microcontrollers, development boards, and PCs.
Key features of the CH340K include its small size, low cost, and ease of integration, making it popular in DIY electronics projects, prototyping, and consumer electronic products. It supports standard baud rates ranging from 50bps to 2Mbps, and it is compatible with common operating systems like Windows, macOS, and Linux.
Installing the CH340K usually requires specific drivers, which are readily available from official sources or device manufacturers. Its compact form factor and reliable performance make it a preferred choice for hobbyists and engineers looking to add USB connectivity to their projects without incurring significant cost or complexity.

Equivalent

The CH340K is a USB-to-serial converter chip. Equivalent products include the CP2102 and CP2104 from Silicon Labs, FT232RL from FTDI, and PL2303 series from Prolific. These chips perform similar functions of bridging USB interfaces with UART serial communication, making them interchangeable in many applications, though specific features and driver support may vary. Always check compatibility with your project's specific requirements.

Features

The CH340K is a USB-to-serial interface chip commonly used in electronics projects to enable communication between computers and microcontrollers. Key features include:
1. USB Compatibility: Supports full-speed USB 2.0 interface, allowing easy connection with computers.
2. Serial Communication: Provides asynchronous serial data transfer, supporting common baud rates ranging from 50bps to 2Mbps.
3. Driver Support: Compatible with various operating systems including Windows, Linux, and MacOS, with driver installation required for proper functionality.
4. Compact Size: Designed for use in space-constrained applications, making it suitable for integrating into small devices.
5. Low Power Consumption: Operates at low power levels, which is ideal for battery-powered applications.
6. Integrated Crystal: Contains an internal crystal oscillator, reducing the need for additional external components.
7. Versatility: Can be used in various applications, such as USB to UART, USB to RS232, and USB to IrDA conversion.
Overall, the CH340K is valued for its reliability, ease of use, and cost-effectiveness in facilitating serial communication for a wide range of electronic projects.

Pinout

The CH340K is a USB-to-serial converter IC used to enable USB communication for devices with a serial interface. It is a compact variant of the popular CH340 series. The CH340K is often used in embedded systems for interfacing microcontrollers, sensors, and other peripherals with a computer through USB.
Key specifications of the CH340K:
- Pin Count: Typically, the CH340K comes in an 8-pin SOP (Small Outline Package).
- Function:
- It converts USB signals to serial UART signals and vice versa, facilitating communication between a USB host and serial devices.
- Supports full-duplex communication with baud rates typically up to 115200 bps or even higher.
- It includes necessary features for USB protocol handling and supports various operating systems, including Windows, Linux, and macOS, with appropriate drivers.
The CH340K is valued for its compact size, simplicity of integration, and cost-effectiveness, making it a popular choice for small-scale and hobbyist projects requiring USB connectivity.

Manufacturer

The CH340K is manufactured by Nanjing QinHeng Electronics Co., Ltd., a Chinese company. QinHeng Electronics specializes in producing integrated circuits, particularly for USB bridge solutions and serial communication interfaces. They are well-known for their series of CH340 USB-to-serial chips, which are widely used in electronics projects and devices for enabling USB connectivity. The company focuses on providing cost-effective and reliable solutions for interfacing various electronic components and systems with computers via USB.

Application

The CH340K is a USB-to-serial converter chip commonly used in electronics projects and applications. Its primary application areas include:
1. Arduino and Microcontroller Projects: Facilitates USB communication for programming and data transfer.
2. Embedded Systems: Provides serial communication for devices lacking native USB support.
3. Data Logging: Connects sensors and data acquisition systems to computers for data recording.
4. Prototyping and Development: Enables easy communication between PCs and prototype devices.
5. Industrial Automation: Used in systems requiring reliable serial communication interfaces.
6. Consumer Electronics: Supports connectivity in devices like modems and set-top boxes.
These applications benefit from the CH340K's cost-effectiveness and ease of integration.

Package

The CH340K is typically available in a SOP-16 (Small Outline Package) form. This compact package type is well-suited for space-constrained applications and is commonly used in USB-to-serial converter modules.