In the old days a TTL low was not very low, it only had to be below 800mv.
So an older device (say 74LS04) would give a low of one junction above ground, around 600mv.
These days most devices...
Type: Posts; User: kenif; Keyword(s):
Re: 16f887 PIC output pin pull to ground
In the old days a TTL low was not very low, it only had to be below 800mv.
So an older device (say 74LS04) would give a low of one junction above ground, around 600mv.
These days most devices...