Patent ID: 8767498

Claim:
A circuit comprising: a fuse circuit having an electrical fuse; and a control circuit, wherein the control circuit is configured to receive an input signal and a feedback signal, the input signal having an input pulse, to provide a first output signal and a second output signal, the first output signal having a first output signal pulse, to generate a first edge of the first output signal based on a first edge of the input pulse, and to generate a second edge of the first output signal based on the feedback signal; and the fuse circuit is configured to receive the first output signal and the second output signal, to generate a read current to the electrical fuse for a duration of the first output signal pulse, to generate a fuse signal indicative of a program condition of the electrical fuse, to generate a first logical value of the feedback signal based on a first logical value of the second output signal, to generate a second logical value of the feedback signal based on the fuse signal, and to provide the feedback signal.