Skip to content Skip to sidebar Skip to footer

CH340E New Varian of USB Serial CH340 IC Datasheet Schematic

CH340E

CH340E Schematics USB to Serial (CH340E circuit) - The USB Serial CH340 chip has been used on the arduino clone board. With a price that is relatively cheaper than other USB to serial ICs, this chip is in great demand for USB to Microcontroller communication.

chip piko, usb seriel adapter usb ttl serial adapter rs232c to usb usb 232 adapter usb 232 usb to rs232 rs232 cable usb usb rs232 female usb to serial rs232 adapter rs232 to usb usb r232 usb to rs232 ttl usb rs232 converter micro usb serial adapter rs232 to usb usb 232 converter usb serial port usb converter rs232 ttl to usb usb serial ttl aten uc232 adapter serial to usb usb to serial 232 to usb aten 232 ch340 usb serial usb to serial rs232 ch340 usb 2.0 to rs232 usb ttl converter usb to ttl mini usb to rs232 converter usb rs232 usb 2 serial uc232a ch340c usb ch340 ch340e ch340 driver ch340 driver windows 10 ch340g driver windows 10 ch340 driver windows 7 usb serial ch340 driver ch340g driver windows 7 ch340c driver ch340 windows 10 usb serial ch340 driver windows 10 ch340 usb driver usb serial ch340 driver windows 7 nodemcu ch340 esp8266 ch340 esp8266 ch340g ch340g windows 10 ch340g driver linux ch340 driver linux ch340g esp8266 ch340g linux ch340 esp8266
CH340E IC

 

 

CH340 is a chip that can convert data from USB to serial data. In addition, based on the datasheet, this chip can also convert USB data into IrDA infrared data. One of the very small variants is the CH340 E.

 

1. CH340E Chip Features

The CH340 is widely used besides being cheap, this chip has features that are not inferior to other USB to Serial chips, including:
  • Has an internal crystal for the clock
  • Has a high speed suitable for USB 2.0
  • Can be used on Linux, Windows and Mac (driver)
  • Supports Serial baud rate speeds from 50bps to 2Mbps
  • Supports Infrared IrDA SIR baud rate speed from 2400bps to 115200bps
  • Supports various types of liaison MODEM signals such as DTR, RTS, RI, DCD, DSR and CTS
  • Supports conversion to RS232, RS485, RS422 and others
  • For details, see the datasheet under this article.
There are various types of variants of the CH340 USB Serial chip, namely CH340G, CH340C. CH340B, CH340T, CH340N, CH340K, CH340E.
 
CH340G is the variant most often used in Arduino clone, because it is cheap, but this variant requires an external crystal.
 
There are also variants that already have internal crystals in them, including the CH340E, CH340N, CH340C, CH340K and CH340B. One of them already has an internal EEPROM, namely CH340B.
 

2. CH340 Driver

This CH340 can be used with various OS such as Windows 10 / 8.1 / 8/7 / VISTA / XP, Server 2016/2012/2008/2003, 2000 / ME / 98, Linux and Mac.
 
You can download the driver directly according to the OS you have below.
  • Download Driver CH340 Windows
  • Download Driver CH340 Linux
  • Download Driver CH340 Mac
If the link above doesn't work. you can visit the CH340 download page here

 

3. CH340 Schematic

In this article I will share the CH340E circuit (CH340 Schematic). I have tried this circuit on the board that I made (in the photo above) below and managed to send and receive data.
 
Here is the CH340E circuit that I have tried and I created this circuit using the KiCad application.

 

chip piko, usb seriel adapter usb ttl serial adapter rs232c to usb usb 232 adapter usb 232 usb to rs232 rs232 cable usb usb rs232 female usb to serial rs232 adapter rs232 to usb usb r232 usb to rs232 ttl usb rs232 converter micro usb serial adapter rs232 to usb usb 232 converter usb serial port usb converter rs232 ttl to usb usb serial ttl aten uc232 adapter serial to usb usb to serial 232 to usb aten 232 ch340 usb serial usb to serial rs232 ch340 usb 2.0 to rs232 usb ttl converter usb to ttl mini usb to rs232 converter usb rs232 usb 2 serial uc232a ch340c usb ch340 ch340e ch340 driver ch340 driver windows 10 ch340g driver windows 10 ch340 driver windows 7 usb serial ch340 driver ch340g driver windows 7 ch340c driver ch340 windows 10 usb serial ch340 driver windows 10 ch340 usb driver usb serial ch340 driver windows 7 nodemcu ch340 esp8266 ch340 esp8266 ch340g ch340g windows 10 ch340g driver linux ch340 driver linux ch340g esp8266 ch340g linux ch340 esp8266
CH340E Schematic
 

 

 

In the circuit above, I used a 1k2 resistor for the LED. Generally, the LED uses a 330 Ohm resistor, but because I use a 330 ohm resistor SMD LED it makes the LED very bright, so I change the LED resistance to 1.2K Ohm.
 
In this circuit I also provide a polyfuse for circuit protection. I did not give the value because it depends on usage. If you want to secure the circuit only 1A, then use a polyfuse with a maximum current of 1A and so on.
 
For the reset pin, please do not remove the 10uF capacitor, because this is very useful in the process of resetting and uploading data.
 

4. CH340 Datasheet

Old Version:

 

New Version:

 

Post a Comment for "CH340E New Varian of USB Serial CH340 IC Datasheet Schematic"

Subscribe via Email