UART muxing

Azeem Awan

Other Parts Discussed in Thread: TL16C752D

Hello

I am using STM32F427 microcontroller in my project. I have 4 UARTs available but i need 8 UARTs. Is there a method to deal with this by muxing or any other way for this problem?
My project is ultra low pwer and i can not use quaduart. If there is one with very low power requirements, please suggest me.

Thanks

Regards

Azeem

over 9 years ago

0 Francisco Javier Zamudio over 9 years ago

TI__Expert 5455 points

Hello Azeem

Please, Can you share more details about your project?

Regards
Francisco

0 Azeem Awan over 9 years ago in reply to Francisco Javier Zamudio

Prodigy 90 points

I need to interface different sensors and actuators on RS422 interfaces.

0 Francisco Javier Zamudio over 9 years ago in reply to Azeem Awan

TI__Expert 5455 points

Please, check TL16C752D www.ti.com/.../tl16c752d.pdf, this is a dual uart with 64-Byte FIFO and data rates up to 3 Mbps.

Regards
Francisco

0 Azeem Awan over 9 years ago in reply to Francisco Javier Zamudio

Prodigy 90 points

Thanks
Is it interfaced with any GPIO of microcontroller or with the UART of microcontroller?

0 Francisco Javier Zamudio over 9 years ago in reply to Azeem Awan

TI__Expert 5455 points

With the UART of microcontroller. I also recommend you to check the RS-485 mode (page 39) I think that could be useful for your app.

Regards
Francisco

0 Azeem Awan over 9 years ago in reply to Francisco Javier Zamudio

Prodigy 90 points

It means it converts 1 UART into 2 UARTs?

0 Francisco Javier Zamudio over 9 years ago in reply to Azeem Awan

TI__Expert 5455 points

No, it's not. These are two uarts on same chip. May be this block diagram can help you.

Please, let me know if you have any other question.

Regards

Francisco

Interface

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UART muxing