CFAF240320K-T-TS with USB


New member

could someone suggest me a possibility to have the CFAF240320K-T-TS with the USB interface ?

I need to connect this LCD to a microprocessor without the parallel interface.

The only possibility is the USB.

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This is possible, perhaps by using a USB to 24 bit parallel adapter:

There would be some issues with this method:
1. You would have to configure the module to have 3.3 volt outputs, or if you run it on the 5 v USB power you would need level converter chips.
2. This module uses a virtual COM port (serial) driver, so you would be limited to 115Kbaud data rate. This would make the display update be very slow.

USBmicro makes some USB to 16 bit parallel adapters:

They use a DLL driver interface, so you would have to make up a program to do the communication. It would probably be a bit faster than the Elexol module, but you will be limited to an 8 bit data bus to the display. Also, I think the USBmicro stuff is 5 volt only, so you would need level converter chips to get 3.3 v signals.

I don't know what else might be available. It's not a very practical way to do it. You would be better off having a speedy microprocessor to control the display, which takes high level commands over USB from the host PC. That would be quite a project.