Sep 20, 2014 #1 R raman00084 Full Member level 6 Joined Nov 29, 2010 Messages 375 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,298 Activity points 4,076 what is the current rating of each gpio in lpc1768, it is possible to drive optocoupler through a 1 k resistor i cannot find the gpio current rating in lpc datasheet kindly help regards kalyan
what is the current rating of each gpio in lpc1768, it is possible to drive optocoupler through a 1 k resistor i cannot find the gpio current rating in lpc datasheet kindly help regards kalyan
Sep 20, 2014 #2 H HTA Advanced Member level 1 Joined Nov 17, 2011 Messages 445 Helped 108 Reputation 216 Reaction score 104 Trophy points 1,323 Activity points 3,925 Hi Raman, it is Ioh and Iol with +/-4mA on page 48 of the datasheet: . Enjoy your design work!