topic LPC824 TSSOP WKTCLKIN pin in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/LPC824-TSSOP-WKTCLKIN-pin/m-p/570522#M18181 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by joepbrown on Mon Mar 23 23:18:07 MST 2015</STRONG><BR /><SPAN>Am I correct in reading the LPC824 datasheet that the WKTCLKIN pin in unavailable on the TSSOP package?</SPAN><BR /><BR /><SPAN>This would also infer that there is no way use an external clock in deep-power-down mode on the TSSOP package...which means the only option for the clock in deep-power-down on the TSSOP is the sloppy 10khz low-power oscillator and there's really no way to maintain decent timing and use the deep-power-down mode (like an RTC).</SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 20:12:28 GMT lpcware 2016-06-15T20:12:28Z LPC824 TSSOP WKTCLKIN pin https://community.nxp.com/t5/LPC-Microcontrollers/LPC824-TSSOP-WKTCLKIN-pin/m-p/570522#M18181 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by joepbrown on Mon Mar 23 23:18:07 MST 2015</STRONG><BR /><SPAN>Am I correct in reading the LPC824 datasheet that the WKTCLKIN pin in unavailable on the TSSOP package?</SPAN><BR /><BR /><SPAN>This would also infer that there is no way use an external clock in deep-power-down mode on the TSSOP package...which means the only option for the clock in deep-power-down on the TSSOP is the sloppy 10khz low-power oscillator and there's really no way to maintain decent timing and use the deep-power-down mode (like an RTC).</SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 20:12:28 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC824-TSSOP-WKTCLKIN-pin/m-p/570522#M18181 lpcware 2016-06-15T20:12:28Z Re: LPC824 TSSOP WKTCLKIN pin https://community.nxp.com/t5/LPC-Microcontrollers/LPC824-TSSOP-WKTCLKIN-pin/m-p/570523#M18182 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by xianghuiwang on Mon Apr 27 22:47:44 MST 2015</STRONG><BR /><SPAN>Hi,</SPAN><BR /><SPAN>Your understanding is correct. UM Section 6.3.1 has a "Remark" on this clarification:</SPAN><BR /><SPAN>The external clock input WKTCLKIN on the wake up timer is not available on the TSSOP20 package.</SPAN><BR /><SPAN>Regards,</SPAN></BODY></HTML> Wed, 15 Jun 2016 20:12:29 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC824-TSSOP-WKTCLKIN-pin/m-p/570523#M18182 lpcware 2016-06-15T20:12:29Z