Method of and apparatus for controlling clock signal

Abstract

An integrated circuit includes a clocking transistor, a first enabling transistor, a second enabling transistor, a branch-one transistor, and a branch-two transistor. The first enabling transistor is coupled between the clocking transistor and a first node. The second enabling transistor is coupled between the clocking transistor and a second node. The branch-one transistor is coupled between a first power supply and the first node. The gate terminal of the branch-one transistor is connected to the second node. The branch-two transistor is coupled between the first power supply and the second node. The gate terminal of the branch-two transistor is connected to the first node. Each of the clocking transistor, the first enabling transistor, and the second enabling transistor is a first-type transistor of a reduced threshold. Each of the branch-one transistor and the branch-two transistor is a second-type transistor of a default threshold.