Replacement diff bus xcvr?

Question

The part that has failed has these markings:

LS1176 8AT D5HT

This is the data sheet for it, I think:

SN65ALS1176:

although how to I tell if the failed one is a 65 or 76 prefix part?

Searching local suppliers, I find this:

SN75LBC176A:

Is the second a suitable replacement for the first?

Package is SOIC.

They're both TI, so why the different numbering (1176 vs 176)? What does

65/75 prefix indicate? And regarding the other markings on the failed IC: does HT mean Hi-Temp?

A few too many discrepancies in my mind to just swap it in just yet.

Thanks,

John E. · Accepted Answer

That should read "...is a 65 or 75 prefix part?".-- John English

Franc Zabkar · Answer

On Thu, 08 Mar 2007 19:24:06 GMT, John E. put finger to keyboard and composed:

This is TI's page:

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This is TI's search page:

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Searching for parts containing "LS1176" at TI's web site finds only the SN65ALS1176.

See TI's documentation:

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The LBC devices appear to be upgrades to their respective ALS versions. They specify lower power and improved ESD.

The 65 versions appear to have a wider operating temp range (-40C to

125C, -40C to 85C) than the 75 versions (0 to 70C).

The datasheets are here:

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(same as previous)

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All devices have an SN75176 "footprint".

- Franc Zabkar

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