• State TI Thinks Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 2 answers
  • Subscribers 34 subscribers
  • Views 307 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

SN65C1168: Deference between SN65C1168 and SN65C1168E

Kenta Yajima
Prodigy 220 points
Part Number: SN65C1168

Hi Team 

I have 2 questions regarding SN65C1168 and SN65C1168E.

1, What is the deference of ESD protection spec? I'd like to confirm this because we couldn't find "ESD Protection for RS-422 Bus Pins" at the datasheet of SN65C1168.

2, SN65C1168 has a diode between Vcc and Input pin but  SN65C1168E doesn't has this. Why?

<SN65C1168>

<SN65C1168E>

  • 0
    Guru 316640 points

    1. Apparently, the SN65C1168 does not have any guaranteed ESD specifications, so I guess it failed all test levels.

    2. In the SN65C1168E, the diode from GND is not a plain diode but an ESD protection circuit that can handle both positive and negative voltages.

  • 0
    TI__Guru 52082 points

    Hi Yajima-san,

    1. The "E" version has +/-8-kV IEC ESD Protection - whereas the non-E version does not. 

    2. The device uses a different protection scheme. That is all. 

    Best,

    Parker Dodson