Abstract: as much as 0 1 VCC plus 1V away from power supply rail Shown graphically we have less than the , load such as a lamp or a relay TL F 6019??10 FIGURE 2-6 Guaranteed TTL DC margin over , rail RPD (R pull down) is added to each P-MOS output to pull it all the way down to the lower rail Its , supply rail when it needs to This approach will work with push-pull as well as open drain P-MOS outp