Patent ID: 7944244
Filing Date: 2011-05-17
Classification: H03K

Abstract:
1. A multi-functional logic gate device comprising: a first pull-up circuit including a plurality of input switches of a first group that are respectively connected to a plurality of input terminals and that are connected in series between a power source and a first terminal; a first pull-down circuit including a plurality of input switches of a second group that are respectively connected to the input terminals and that are connected in parallel between a second terminal and a ground terminal; a second pull-up circuit including a plurality of input switches of a third group that are respectively connected to the input terminals and that are connected in parallel between the power source and a third terminal; second pull-down circuit including a plurality of input switches of a fourth group that are respectively connected to the input terminals and that are connected in series between a fourth terminal and the ground terminal; and a feedback circuit including a plurality of switches that are arranged between the first through fourth terminals to respectively generate different logic operation outputs from the first through fourth terminals.