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    <title>topic  P82B715 Pull up resistor?? in 8-bit Microcontrollers</title>
    <link>https://community.nxp.com/t5/8-bit-Microcontrollers/P82B715-Pull-up-resistor/m-p/759859#M22542</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;Hi Everone,&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;I am working with&amp;nbsp;&lt;A href="http://www.ti.com/product/P82B715" style="color: #aa6666; background: transparent; border-bottom: none; text-decoration: underline;" target="_blank" title="Link to Product Folder"&gt;P82B715&lt;/A&gt;&lt;SPAN&gt;&amp;nbsp;&lt;/SPAN&gt;IC for long ditance I2C communication.&amp;nbsp;&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;I read the datasheet and understand that there is no noise margin for this IC, the output will appear same as the input.&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;Is my understanding is correct??&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;Also VCC is 4.5V to 12V as per datasheet. Can I pull up SDA and SCL lines on both side of buffer with 1.8V??&amp;nbsp;&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;If I do like this,will this affect performance??&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;I requesting to provide me the information as soon as possible.&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;Thanks &amp;amp; Regards,&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;M.Arun kumar&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Thu, 07 Jun 2018 12:48:28 GMT</pubDate>
    <dc:creator>m_arunkumar</dc:creator>
    <dc:date>2018-06-07T12:48:28Z</dc:date>
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      <title>P82B715 Pull up resistor??</title>
      <link>https://community.nxp.com/t5/8-bit-Microcontrollers/P82B715-Pull-up-resistor/m-p/759859#M22542</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;Hi Everone,&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;I am working with&amp;nbsp;&lt;A href="http://www.ti.com/product/P82B715" style="color: #aa6666; background: transparent; border-bottom: none; text-decoration: underline;" target="_blank" title="Link to Product Folder"&gt;P82B715&lt;/A&gt;&lt;SPAN&gt;&amp;nbsp;&lt;/SPAN&gt;IC for long ditance I2C communication.&amp;nbsp;&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;I read the datasheet and understand that there is no noise margin for this IC, the output will appear same as the input.&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;Is my understanding is correct??&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;Also VCC is 4.5V to 12V as per datasheet. Can I pull up SDA and SCL lines on both side of buffer with 1.8V??&amp;nbsp;&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;If I do like this,will this affect performance??&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;I requesting to provide me the information as soon as possible.&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;Thanks &amp;amp; Regards,&lt;/P&gt;&lt;P style="color: #555555; background-color: #ffffff; font-size: 14px; margin: 1.5em 0px;"&gt;M.Arun kumar&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 07 Jun 2018 12:48:28 GMT</pubDate>
      <guid>https://community.nxp.com/t5/8-bit-Microcontrollers/P82B715-Pull-up-resistor/m-p/759859#M22542</guid>
      <dc:creator>m_arunkumar</dc:creator>
      <dc:date>2018-06-07T12:48:28Z</dc:date>
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