MAX3221E: Alternate part with higher baud rate

Shifali N

Part Number: MAX3221E
Other Parts Discussed in Thread: TRSF3221E

Hi Team,

I am using MAX3221EIPWR in my design for UART interface which is used for board console terminal. My baudrate requirement is 921600 and the IC doesn't support this baudrate. Can you please share a footprint and pin-pin compatible alternate IC for MAX3221EIPWR that can support baudrate of 921600.

over 1 year ago

0 Clemens Ladisch over 1 year ago

Guru 294220 points

TRSF3221E

0 Shifali N over 1 year ago in reply to Clemens Ladisch

Expert 2135 points

Hi Clemens,

Thankyou for the suggestions.

Whether the part is direct replacement for MAX3221EIPWR(footprint and pin-pin compatible)

0 Clemens Ladisch over 1 year ago in reply to Shifali N

Guru 294220 points

It is.

0 Shifali N over 1 year ago in reply to Clemens Ladisch

Expert 2135 points

Hi Clemens,

Thank you for the confirmation.

0 Parker Dodson over 1 year ago in reply to Shifali N

TI__Mastermind 48167 points

Hi Shifali,

Clemens is correct - I just wanted to let you know if you have any more questions please let me know and I will see what I can do!

Best,

Parker Dodson

0 Shifali N over 1 year ago in reply to Parker Dodson

Expert 2135 points

Hi Parker,

I mounted and tested the received sample IC TRSF3221E in place of MAX3221EIPWR. Tera Term settings are as follows: baud rate is 921600 and transmit delay 250 msec/line.

I observe that ROUT channel output is not good. I am getting absurd values.

I have attached the snapshot of the output received.

0 Clemens Ladisch over 1 year ago in reply to Shifali N

Guru 294220 points

Duplicate of TRSF3221E: Junk Output Values.

0 Parker Dodson over 1 year ago in reply to Shifali N

TI__Mastermind 48167 points

Hi Shifali,

I believe this problem is being handled in a different thread that I am also responding to - please see here: https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1210593/trsf3221e-junk-output-values for continued discussion on this topic.

Best,

Parker Dodson

Interface

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MAX3221E: Alternate part with higher baud rate