MosChip MCS7703 Driver Download (Official)

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4 Ratings

Supported Models

MCS7703 Driver

USB-to-One-Serial Port Driver



Supported Operating Systems

Windows Vista (64 bit)

File Name (1.2 MB)

Versions (20-Apr-2007) (2007-04-20) via .inf

Find Related Drivers

Uploader Notes

The MCS7703 controller provides bridging between the Universal Serial Bus (USB) input and an enhanced UART port. This device contains all the necessary logic to communicate with the host computer via the USB bus. In addition, the MCS7703 contains a 3.3V regulator and operates in bus-powered mode.

Uploaded By

Sathishkumar (DG Staff Member) on 14-Aug-2009

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
Driver_Vista64_7703/Driver_Vista64_7703/INS_Vista_7703.pdf 149.1 KB 11 May 2007
Driver_Vista64_7703/Driver_Vista64_7703/Win64/OneSetup.exe 467.5 KB 20 Apr 2007
Driver_Vista64_7703/Driver_Vista64_7703/Win64/OneUnst.exe 442.9 KB 20 Apr 2007
Driver_Vista64_7703/Driver_Vista64_7703/Win64/win64/Config.ini 159 bytes 4 Mar 2003
Driver_Vista64_7703/Driver_Vista64_7703/Win64/win64/OneSerialMP.exe 338.9 KB 9 Mar 2007
Driver_Vista64_7703/Driver_Vista64_7703/Win64/win64/OneUComp.inf 2.2 KB 20 Apr 2007
Driver_Vista64_7703/Driver_Vista64_7703/Win64/win64/OneUPort.inf 4.4 KB 20 Apr 2007
Driver_Vista64_7703/Driver_Vista64_7703/Win64/win64/OneUSBSerPropPage.dll 64.0 KB 9 Mar 2007
Driver_Vista64_7703/Driver_Vista64_7703/Win64/win64/OneUSBSerial.exe 367.6 KB 9 Mar 2007
Driver_Vista64_7703/Driver_Vista64_7703/Win64/win64/OneUnst.exe 442.9 KB 20 Apr 2007
Driver_Vista64_7703/Driver_Vista64_7703/Win64/win64/PPSPInputs.ini 31 bytes 12 Dec 2003
Driver_Vista64_7703/Driver_Vista64_7703/Win64/win64/oneuport.sys 527.9 KB 20 Apr 2007

How to Update MCS7703 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the MCS7703 driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter MCS7703 into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the Driver Update Utility for MCS7703. It is a software utility which automatically finds and downloads the right driver.

To find the newest driver, you may need to visit the MosChip website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

This website is not affiliated with MosChip. All company names/logos are properties of their owners.
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