Patent ID: 9571101
Date: 2017-02-14
CPC Classifications: G11C,H03K

Claim:
1. A semiconductor device comprising: a first circuit including a first transistor of a first conductivity type, a second transistor of the first conductivity type and a constant current source, the first transistor being capable of receiving a first signal, the second transistor being capable of receiving a second signal, one end of the constant current source being electrically connected to one end of the first transistor and one end of the second transistor; a second circuit including a third transistor of a second conductivity type and a fourth transistor of the second conductivity type, a gate and one end of the third transistor being electrically connected to the other end of the first transistor, the fourth transistor being capable of receiving the first signal, one end of the fourth transistor being electrically connected to the other end of the third transistor; and a third circuit configured to charge or discharge a node being electrically connected to the one end of the first transistor according to the first signal.