|Vs in case of nMOS PTL and VD in case of pMOS PTL is used as output.||Enhancement type nMOS transistor used as pull up device.||pMOS transistor is used as pull up device.|
|Power dissipation is low as VDD line is not required.||Power dissipation is high as rail to rail current flows when Vin is high.||Power dissipation is very low.|
|Only nMOS or pMOS devices are used.||Only nMOS devices are used.||Both nMOS and pMOS devices are used.|
|Space requirement is less.||Space requirement is more than PTL.||Space requirement is more than PTL.|
|VDD supply is not required except for inverter.||Extra supply rail is required.||Extra supply rail is not required.|
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