need schematic usb to comport

[mbyka]

hi all
I want to build usb to comport adapter
I am searching schematic
I have a motorola Acompli008 mobile phone
I have casper Note book but not comport.Notebook is usb all input unit

 

[Wizzard]

The simplest way by far is to use a ready made chip for this

one that works well for me is the FT8U232AM from FTDI Chip
**broken link removed**

I have not tested the new FT232BM so I cant say anything about that

/Wizzard

 

[Roel]

USB to COM port

We tested the FTDI chip. It works very fine.

If you only want to make one piece of it, you better order the DLP-USB232M module. It's a module in DIP format with a USB connector, the FTDI chip and some caps and resistiros on it.
We 've also tested this one and it works fine too.

Roel

 

[mbyka]

hi
thanks
But I am not find this chip!
are there Very simple schematic?

 

[renato]

Try it

Try to use Texas Instruments TUS3410 it's work fine and yoiu only need few components to assembly it.

The TI site have schem, docs and a gerber of a test board, it's cool:

**broken link removed**

In this link there are another USB controller ( a generic one), take a look on it too.

Regards,

Renato

 

[renato]

And the best ...

I forgot ... you could ask for samples in TI site. It works. Samples are delivered very fast and [the best] for free ... just sign up an enjoy.

Best regards,

Renato

 

[Analyzer]

Hi,

You can also request samples from ftdi. If you explain your project politely, you may receive ic's from them via air-mail.

Analyzer.