TRS3221E: RS-232 comparison

Janet Lin

Intellectual 1020 points

Part Number: TRS3221E
Other Parts Discussed in Thread: SN65C3221, SN65C3221E, MAX3221E

Tool/software:

Hi E2E,

Can you help to provide the differennce of RS-232 line redriver/receiver as below?

Are they Bom to BOM? Which one will be recomend more in new design?

TRS3221EIPWR

MAX3221EIPWR

SN65C3221EPWR

7 months ago

0 Amy 7 months ago

TI__Genius 15321 points

Hi Janet,

Here is the link to our device comparison tool feature. You can view as a general comparison table here: Compare products (ti.com)

For differences, you can click the "differences" tab in the upper left corner.

The TRS3221E is the "Drop-in replacement with upgraded functionality" compared to the SN65C3221E here on the SN65C3221 page:

SN65C3221E data sheet, product information and support | TI.com

The MAX3221E webpages mentions "Same functionality with different pin-out to the compared device TRS3221E"

MAX3221E data sheet, product information and support | TI.com

Thank you, Amy

0 Clemens Ladisch 7 months ago

Guru 292250 points

SN65Cxxx transceivers are older, supported only for legacy applications, and should not be used.

TRSxxx and MAXxxx devices are identical and have the same pinout; it does not matter which one you use. (But they might be available in different packages.)

0 Janet Lin 7 months ago in reply to Amy

TI__Intellectual 1020 points

Thank you so much.

0 Janet Lin 7 months ago in reply to Clemens Ladisch

TI__Intellectual 1020 points

Got it! Thank you so much for your respond!

0 Amy 7 months ago in reply to Janet Lin

TI__Genius 15321 points

Hi Janet,

All of these devices show an active status. If there were concerns over EOL or not recommended for new designs this would be reflected on the corresponding pages.

Sincerely, Amy

Interface

Interface forum

TRS3221E: RS-232 comparison