topic VDD Rise time in 8-bit Microcontrollers https://community.nxp.com/t5/8-bit-Microcontrollers/VDD-Rise-time/m-p/139996#M5504 <HTML><HEAD></HEAD><BODY><DIV>Friends,</DIV><DIV>&nbsp;</DIV><DIV>I am using MC908QT1 device.</DIV><DIV>&nbsp;</DIV><DIV>I need to know what happens when the Vdd rise time exceeds the specified 150 msecs.</DIV><DIV>&nbsp;</DIV><DIV>Does this affect the start up?</DIV><DIV>&nbsp;</DIV><DIV>&nbsp;</DIV><DIV>Raghu Sorab</DIV></BODY></HTML> Sun, 18 Jun 2006 19:00:58 GMT RaghuSorab 2006-06-18T19:00:58Z VDD Rise time https://community.nxp.com/t5/8-bit-Microcontrollers/VDD-Rise-time/m-p/139996#M5504 <HTML><HEAD></HEAD><BODY><DIV>Friends,</DIV><DIV>&nbsp;</DIV><DIV>I am using MC908QT1 device.</DIV><DIV>&nbsp;</DIV><DIV>I need to know what happens when the Vdd rise time exceeds the specified 150 msecs.</DIV><DIV>&nbsp;</DIV><DIV>Does this affect the start up?</DIV><DIV>&nbsp;</DIV><DIV>&nbsp;</DIV><DIV>Raghu Sorab</DIV></BODY></HTML> Sun, 18 Jun 2006 19:00:58 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/VDD-Rise-time/m-p/139996#M5504 RaghuSorab 2006-06-18T19:00:58Z Re: VDD Rise time https://community.nxp.com/t5/8-bit-Microcontrollers/VDD-Rise-time/m-p/139997#M5505 <HTML><HEAD></HEAD><BODY>Good morning.<BR />I'm guessing that the reset and brown-out control circuits wont be guaranteed to work correctly (i.e. the processor may not start up correctly, etc.).<BR /><BR />I strongly recommend that you keep Vcc voltage and timing within spec.<BR />ron</BODY></HTML> Sun, 18 Jun 2006 21:32:34 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/VDD-Rise-time/m-p/139997#M5505 glork 2006-06-18T21:32:34Z Re: VDD Rise time https://community.nxp.com/t5/8-bit-Microcontrollers/VDD-Rise-time/m-p/139998#M5506 <HTML><HEAD></HEAD><BODY><DIV></DIV><P>Hi Raghu,</P><P>There was some discussion in this forum maybe a couple of months ago about this and short term power outages etc. I've no time to search now.</P><P>Regards David</P><P>&nbsp;</P></BODY></HTML> Mon, 19 Jun 2006 08:12:26 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/VDD-Rise-time/m-p/139998#M5506 peg 2006-06-19T08:12:26Z