E Eric Koh New Member Jun 1, 2004 #1 Hi...does anyone know that If I power up the uController with 3.5V or 5V, will the o/p's have different levels of High? Seems that a lower operating voltage appears to lower the max operating frequency of the PIC as well...
Hi...does anyone know that If I power up the uController with 3.5V or 5V, will the o/p's have different levels of High? Seems that a lower operating voltage appears to lower the max operating frequency of the PIC as well...
Nigel Goodwin Super Moderator Most Helpful Member Jun 2, 2004 #2 Eric Koh said: Hi...does anyone know that If I power up the uController with 3.5V or 5V, will the o/p's have different levels of High? Click to expand... Of course it will, the outputs switch from 0V to the positive supply (actually not reaching either rail) - if you use a 3.5V supply your output can't go above that.
Eric Koh said: Hi...does anyone know that If I power up the uController with 3.5V or 5V, will the o/p's have different levels of High? Click to expand... Of course it will, the outputs switch from 0V to the positive supply (actually not reaching either rail) - if you use a 3.5V supply your output can't go above that.
T TKS New Member Jun 2, 2004 #3 mhh.. soow the minimum supply voltage should be a 2,5 volts because else it cant sense a hihg port..?? or is this wrong..should it be 3volts..?? TKS
mhh.. soow the minimum supply voltage should be a 2,5 volts because else it cant sense a hihg port..?? or is this wrong..should it be 3volts..?? TKS
Exo Active Member Jun 2, 2004 #4 Re: mhh.. TKS said: soow the minimum supply voltage should be a 2,5 volts because else it cant sense a hihg port..?? or is this wrong..should it be 3volts..?? TKS Click to expand... Depends on the pic in question, look at the datasheet for the pic you want to use. Most of 'em are 3V min. but there are lot's wich will go lower
Re: mhh.. TKS said: soow the minimum supply voltage should be a 2,5 volts because else it cant sense a hihg port..?? or is this wrong..should it be 3volts..?? TKS Click to expand... Depends on the pic in question, look at the datasheet for the pic you want to use. Most of 'em are 3V min. but there are lot's wich will go lower