Patent ID: 8421518

Claim:
A circuit comprising: an inverter coupled to an input and operable to receive an input signal; a first pull-down transistor coupled to the inverter and operable to pull down an output when the input signal is low; a second pull-down transistor coupled to the input and operable to pull down a complementary output when the input signal is high; a first pull-up transistor coupled to the complementary output and operable to pull up the output when the input signal is high; a second pull-up transistor coupled to the output and operable to pull up the complementary output when the input signal is low; a first switch operable to receive a first control signal and coupled to the complementary output; a first strong pull-up transistor coupled to the first switch and operable to assist the pull up of the output; a second switch coupled to the output and operable to receive a second control signal; a second strong pull-up transistor coupled to the second switch and operable to assist the pull up of the complementary output; a third switch coupling the first strong pull-up transistor to the output and operable to receive the first control signal; and a fourth switch coupling the second strong pull-up transistor to the complementary output and operable to receive the second control signal.