topic LPC1769 Power/Voltage in LPCXpresso IDE https://community.nxp.com/t5/LPCXpresso-IDE/LPC1769-Power-Voltage/m-p/531282#M2426 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by Pinchi on Mon Jan 14 05:03:29 MST 2013</STRONG><BR /><SPAN>Hello All,</SPAN><BR /><BR /><SPAN>I am new to MC programming and I am using LPC1769. I have this doubt. Is it possible to power some pins at 3.3V and some pins at 5V/12V. Is there any way to configure or is it unable to have such a configuration at all? I would like to use most of the ports and I would like to power it with different voltages. Any help is appreciated. Thanks.</SPAN></BODY></HTML> Wed, 15 Jun 2016 21:45:41 GMT lpcware 2016-06-15T21:45:41Z LPC1769 Power/Voltage https://community.nxp.com/t5/LPCXpresso-IDE/LPC1769-Power-Voltage/m-p/531282#M2426 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by Pinchi on Mon Jan 14 05:03:29 MST 2013</STRONG><BR /><SPAN>Hello All,</SPAN><BR /><BR /><SPAN>I am new to MC programming and I am using LPC1769. I have this doubt. Is it possible to power some pins at 3.3V and some pins at 5V/12V. Is there any way to configure or is it unable to have such a configuration at all? I would like to use most of the ports and I would like to power it with different voltages. Any help is appreciated. Thanks.</SPAN></BODY></HTML> Wed, 15 Jun 2016 21:45:41 GMT https://community.nxp.com/t5/LPCXpresso-IDE/LPC1769-Power-Voltage/m-p/531282#M2426 lpcware 2016-06-15T21:45:41Z Re: LPC1769 Power/Voltage https://community.nxp.com/t5/LPCXpresso-IDE/LPC1769-Power-Voltage/m-p/531283#M2427 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by frame on Mon Jan 14 12:22:59 MST 2013</STRONG><BR /><HR /><SPAN style="color: #0000ff;"><STRONG>Quote: </STRONG><BR />Is it possible to power some pins at 3.3V and some pins at 5V/12V.</SPAN><HR /><SPAN>No.</SPAN><BR /><SPAN>Except you want to kill your MCU.</SPAN><BR /><SPAN>Stick to 3.3V. Some pins may accept 5V as [B]input[/B],</SPAN><BR /><SPAN>but never generate more than 3.3V output.</SPAN><BR /><BR /><SPAN>To interface to 5V/12V circuitry, you need levelshifter/driver circuitry.</SPAN><BR /><SPAN>3.3V are by far enough to drive the base of a bipolar transistor, for instance.</SPAN></BODY></HTML> Wed, 15 Jun 2016 21:45:42 GMT https://community.nxp.com/t5/LPCXpresso-IDE/LPC1769-Power-Voltage/m-p/531283#M2427 lpcware 2016-06-15T21:45:42Z