The CH340 series, as the main USB-to-serial chip series promoted by Qinheng Electronics, covers CH340G (launched earlier and widely used), CH340C (built-in crystal oscillator, hardware compatible with 340G), CH340B (built-in crystal oscillator and EEPROM, hardware compatible with 340G) , CH340T (including RS485 enable signal). After the products listed above, through long-term market testing, they have become the first choice for USB-to-serial chips, laying a solid user base.

On the basis of the original series of products, Qinheng is now launching the new product CH340E of the CH340 series. Compared with the original series products, the main advantage of the new product CH340E is the simplicity of the circuit and the smallest volume. In addition, it continues the advantages of CH340 series products in the variety of drivers, fast update, and wide application range.

The advantage of the simplicity of the circuit comes from the fact that the new product CH340E has a built-in clock, only two capacitors are needed for the periphery, and no external crystal oscillator is required.

The advantage of the smallest size comes from the fact that the new product CH340E provides MSOP10 ultra-small package, which saves PCB area for the product, and can be used in electronic scales, code scanning guns, handheld devices and other products in the consumer electronics industry.

The advantage of having a wide variety of drivers and fast update comes from the fact that the new product CH340E adheres to the characteristics of the CH340 series. The driver is fully compatible with the CH341 series, and the CH341 driver can be used directly. It supports Windows, Android, Linux, and MAC OS, and can be updated in time. .