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RS232 SN65C3238E

Carl Wolfe
Genius 10645 points
Other Parts Discussed in Thread: SN65C3238, SN65C3238E

What is the functional difference between TI SN65C3238 and SN65C3238E?   Why is the web price double for SN65C3238?

I received these questions from a customer today. 

I answered the first one by informing the engineer that the E version part offers enhanced ESD protection and complies with IEC 61000-4-2 ESD Protection for RS-232 Bus Pins

 - ±15-kV Human-Body Model (HBM)

-  ±8-kV IEC61000-4-2, Contact Discharge

-  ±15-kV IEC61000-4-2, Air-Gap Discharge

Are there any other differences????

But what is the reason why the E version is lower cost on our website????    is it due to the E version being a more recent introduction and built on a lower cost process????

Please advise.

  • 0
    TI__Mastermind 28265 points

    While this device is an SLL part, we in HPA use similar tactics to motivate the sales of new devices and discaourge the sales of older parts.

    Techincally the die size will be larger in the more robust E-device. Econimicall y it makes sense as less field drop outs can be expected from a more robust device, thus dereasing post-RTM engineering cost (caused by bench-test, re-characterization and application support).

    Hope that makes sense.

    Regards, Thomas

  • 0 in reply to Thomas Kugelstadt
    TI__Genius 10645 points

    Thomas,

    Thanks for the reply.  Yes, this is is the type of explanation I expected.

    But, I didn't realize this was an SLL part, so I will also check with them and get their inputs.

  • 0
    TI__Guru**** 154066 points

    Pricing for commodity devices is complex and outside the scope of my job, but the reason is very likely the "economy of scale" due to higher volume sold with the IEC rated ESD.

    I do understand the product. There are no other differences other than the ESD you mentioned.