SN65176B: Looking for Tina macro or SPICE LIB

LEONG,

Based on the characteristics of the transceivers, it’s more common for TI (and other semiconductor companies) to provide IBIS models for the RS-485 devices. IBIS a behavioral model that describes the electrical characteristics of I/O through V/I and V/T data without disclosing internal information, which is suited for accurate signal integrity analysis. Here is an introduction about IBIS.

https://www.ti.com/lit/an/snla046/snla046.pdf

You can refer to this application note about how to check the signal integrity with IBIS models.

https://www.ti.com/lit/an/slyt413/slyt413.pdf

You can find the IBIS model of a similar device here.

http://www.ti.com/lit/zip/SLLM361 

Another point is that SN65176B is a device released a while ago. You may want to check out a newer device from TI. Here is the information.

e2e.ti.com/.../849650

For example, you can use the spreadsheet to compare the devices.

Please let me know if you have more questions.

Regards,

Hao

Dear Mr./Ms,

Good day!

Thank you very much for replying and information.

I try to use Tina-TI to simulate my circuit design which need the macro of SN65176B/SN65176BP differential bus transceivers.

I can't find the library got SN65176B macro to simulate, please advice.

Best regards,

LEONG

LEONG,

In general TI RS-485 transceivers only come with IBIS models. The only spice models in this category are:

SN65C1167

www.ti.com/.../SLLM344

SN65C1168

www.ti.com/.../SLLM347

Please let me know if you have more questions.

Regards,

Hao

Dear Hao,

Good day!

Thank you very much for your reply and advice.

Please advice what is the difference between SN65C1167 and SN65176B, and how to replace SN65176B by using SN65C1167?

Thank you very much.

Best regards,

LEONG

LEONG,

SN65176B is a transceiver (1TX + 1RX), while SN65C1167/SN65C1168 has dual channels (2TX and 2RX). You can use half of the channels of SN65C1167 or SN65C1168 to simulate for SN65176B. All devices have similar DC specifications and SN65C1167/SN65C1168 has a bit faster edges than SN65176B. Please let me know if you have more questions.

Regards,

Hao