LPC MicrocontrollersのトピックLPC17xx - Input PullUP / PullDown / Weak or Strong - Current values https://community.nxp.com/t5/LPC-Microcontrollers/LPC17xx-Input-PullUP-PullDown-Weak-or-Strong-Current-values/m-p/523829#M6465 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by rnj on Mon May 25 14:54:36 MST 2015</STRONG><BR /><SPAN>Hello!!!</SPAN><BR /><BR /><SPAN>I'm looking for the values of the weak pull-ups when the LPC1768 is on default state. Looking on datasheet I found values for current on theses pins, Ipd and Ipu, but the datasheet doesn't make it clear if these values are for strong or weak PU/PD.</SPAN><BR /><BR /><SPAN>Another doubt is that in the page 75 the diagram show the Pin schematic and the source of the PU/PD are VDD, but in the page 20 the note [1] there is another information about pull-ups values of 2.3V to 2.6V. I measured this same value in my Board. </SPAN><BR /><BR /><SPAN>Are these values right? During the MCU reset these GPIOs are configured as Input Pull-up, so can I consider the "weak" configuration? These currents of Ipd and Ipu are for Weak or Strong PU/PD? Or should I consider the current showed in the page 55 on Fig 14? Which is right?</SPAN><BR /><BR /><SPAN>Thank you!</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:05:38 GMT lpcware 2016-06-15T18:05:38Z LPC17xx - Input PullUP / PullDown / Weak or Strong - Current values https://community.nxp.com/t5/LPC-Microcontrollers/LPC17xx-Input-PullUP-PullDown-Weak-or-Strong-Current-values/m-p/523829#M6465 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by rnj on Mon May 25 14:54:36 MST 2015</STRONG><BR /><SPAN>Hello!!!</SPAN><BR /><BR /><SPAN>I'm looking for the values of the weak pull-ups when the LPC1768 is on default state. Looking on datasheet I found values for current on theses pins, Ipd and Ipu, but the datasheet doesn't make it clear if these values are for strong or weak PU/PD.</SPAN><BR /><BR /><SPAN>Another doubt is that in the page 75 the diagram show the Pin schematic and the source of the PU/PD are VDD, but in the page 20 the note [1] there is another information about pull-ups values of 2.3V to 2.6V. I measured this same value in my Board. </SPAN><BR /><BR /><SPAN>Are these values right? During the MCU reset these GPIOs are configured as Input Pull-up, so can I consider the "weak" configuration? These currents of Ipd and Ipu are for Weak or Strong PU/PD? Or should I consider the current showed in the page 55 on Fig 14? Which is right?</SPAN><BR /><BR /><SPAN>Thank you!</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:05:38 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC17xx-Input-PullUP-PullDown-Weak-or-Strong-Current-values/m-p/523829#M6465 lpcware 2016-06-15T18:05:38Z Re: LPC17xx - Input PullUP / PullDown / Weak or Strong - Current values https://community.nxp.com/t5/LPC-Microcontrollers/LPC17xx-Input-PullUP-PullDown-Weak-or-Strong-Current-values/m-p/523830#M6466 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by LabRat on Mon May 25 15:15:09 MST 2015</STRONG><BR /><HR /><SPAN style="color: #0000ff;"><STRONG>Quote: rnj</STRONG><BR />...During the MCU reset these GPIOs are configured as Input Pull-up, so can I consider the "weak" configuration?</SPAN><HR /><BR /><BR /><SPAN>That are weak values for input...</SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 18:05:39 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC17xx-Input-PullUP-PullDown-Weak-or-Strong-Current-values/m-p/523830#M6466 lpcware 2016-06-15T18:05:39Z