WCH

CH340G

Interface Controllers

Manufacturer
WCHAsian Brands
MPN
CH340G
Package / Case
SOP-16
Key Attributes
USB to Serial Chip CH340

Technical Specifications

TypeDescription
Working Voltage V4.15 V
Data Rate2000000
Applications FunctionUSB to UART
USB ProtocolUSB 2.0
TypeDescription
Operating Temp-40°C ~ +85°C
FeaturesProgrammable baud rate;Power-on reset;Built-in clock generator
Package / CaseSOP-16

Product Introduction

CH340 is a USB bus conversion IC that enables USB-to-serial or USB-to-parallel port functionality. In serial port mode, the IC provides standard MODEM control signals, allowing expansion of asynchronous serial ports on computers or direct upgrade of conventional serial port devices to the USB bus.

Features

  • Full-speed USB device interface, compatible with USB V2.0
  • Emulates standard serial port for upgrading legacy serial peripherals or adding extra serial ports via USB
  • Hardware full-duplex serial port with built-in transceiver buffer, supporting baud rates from 50bps to 2Mbps
  • Supports commonly used MODEM control signals: RTS, DTR, DCD, RI, DSR, CTS
  • RS232, RS485, RS422 interfaces available via external level-shifting devices
  • CH340R supports IrDA SIR infrared communication, baud rates from 2400bps to 115200bps
  • Built-in firmware, software-compatible with CH341; CH341 VCP driver directly applicable
  • Supports 5V and 3.3V supply voltage
  • CH340C/N/K/E/X/B with integrated clock, no external crystal required; CH340B also integrates EEPROM for serial number configuration
  • Available in SOP-16, SOP-8, SSOP-20, ESSOP-10, MSOP-10 lead-free packages, RoHS compliant

Datasheet

📄 Open Download

Alternative Parts

Common CH340G alternatives overseas buyers search for:

Compliance & Export Codes

TypeDetails
CNHTS8542399000
USHTS8542390001
TARIC8542399000
CAHTS8542390000
TypeDetails
BRHTS85423999
INHTS85423900
MXHTS8542.39.99

Frequently Asked Questions

What Is the Package Type for CH340G?

the package type for this product is sop-16.

How Many Pieces Are in a Full Tube?

there are 50 pieces in a standard full tube.

What Is the Main Function of the CH340G Chip?

the ch340g is a usb to serial chip that converts usb 2.0 to uart interface.

Sourcing Information

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