https://community.nxp.com/t5/Power-Management/mc33664-TPL-RDTX-RDTX-2-5v/m-p/2125078#M4465 <P>&nbsp;</P><DIV class="">&nbsp;</DIV><DIV class="">Hi,<BR />&nbsp;&nbsp;I raised the en pin and could still see the validation of intb, However, when I sent data to mc33664, its tpl end remained at a high level all the time&nbsp;Both RDTX+ and RDTX- are 2.5v ,there is no level jump. What's the reason for this?<BR />&nbsp;&nbsp;I also want to know whether mc33664 can convert to tpl data regardless of whether the timing of spi meets the requirements.</DIV><DIV class="">Thx,</DIV><DIV class="">kevin</DIV><DIV class="">&nbsp;</DIV> Sat, 28 Jun 2025 13:02:20 GMT kevinyuee 2025-06-28T13:02:20Z https://community.nxp.com/t5/Power-Management/mc33664-TPL-RDTX-RDTX-2-5v/m-p/2125078#M4465 <P>&nbsp;</P><DIV class="">&nbsp;</DIV><DIV class="">Hi,<BR />&nbsp;&nbsp;I raised the en pin and could still see the validation of intb, However, when I sent data to mc33664, its tpl end remained at a high level all the time&nbsp;Both RDTX+ and RDTX- are 2.5v ,there is no level jump. What's the reason for this?<BR />&nbsp;&nbsp;I also want to know whether mc33664 can convert to tpl data regardless of whether the timing of spi meets the requirements.</DIV><DIV class="">Thx,</DIV><DIV class="">kevin</DIV><DIV class="">&nbsp;</DIV> Sat, 28 Jun 2025 13:02:20 GMT https://community.nxp.com/t5/Power-Management/mc33664-TPL-RDTX-RDTX-2-5v/m-p/2125078#M4465 kevinyuee 2025-06-28T13:02:20Z https://community.nxp.com/t5/Power-Management/mc33664-TPL-RDTX-RDTX-2-5v/m-p/2125930#M4467 <P>Hi&nbsp;</P> <P>Can you catch some waveforms as below picture for visually&nbsp; timing comparison ?</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="guoweisun_0-1751332464411.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/345349i2F40AC9BF11CB1BF/image-size/medium?v=v2&amp;px=400" role="button" title="guoweisun_0-1751332464411.png" alt="guoweisun_0-1751332464411.png" /></span></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="guoweisun_1-1751332479023.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/345350iA385E301C27D9126/image-size/medium?v=v2&amp;px=400" role="button" title="guoweisun_1-1751332479023.png" alt="guoweisun_1-1751332479023.png" /></span></P> <P>&nbsp;</P> Tue, 01 Jul 2025 01:15:29 GMT https://community.nxp.com/t5/Power-Management/mc33664-TPL-RDTX-RDTX-2-5v/m-p/2125930#M4467 guoweisun 2025-07-01T01:15:29Z