TL16C752D: Unused channel

K.Hamamoto

Guru 12155 points

Part Number: TL16C752D

If we do not use B-channel,

- Should we set *CSB pin to high?

- Then what should we set other pin?

(What should the following pins be set?)

TXB, *RTSB, RXA, *CTSA, INTB

- Is there any other things should we set?

Regards,

Koji Hamamoto

over 8 years ago

0 Francisco Javier Zamudio over 8 years ago

TI__Expert 5455 points

Hello K. Hamamoto

If you are not using the channel B should be better to left inactive these pins. In case of CTSA, this pin is from Channel A and is used for hardware flow control.

Regards
Francisco

0 K.Hamamoto over 8 years ago in reply to Francisco Javier Zamudio

Guru 12155 points

Hi Francisco,

Thank you for your support. And I am sorry for the delay in my response.

Can I ask about what does "Inactive" mean?
Does it mean that it should be connected but not control by signal?

How about the pins are related the unused channel(in this case , B channel is unused )?
Can we leave these pins are open or set pull-down/pull-up?

Regards,
Koji Hamamoto

0 Francisco Javier Zamudio over 8 years ago in reply to K.Hamamoto

TI__Expert 5455 points

Hello K. Hamamoto

When I say inactive, it means that if the pin is active low you can connect it to high level or you can also let they float.
In case of RXA, you can let float and CTSA as well. CTSA is part of the hardware flow control, if you won't use this work mode.

Interface

Interface forum

TL16C752D: Unused channel