Patent attributes
A fuse circuit comprises at least one fuse circuit unit and a current blocking module. The fuse circuit unit comprises a voltage establishing module and a latch. The voltage establishing module is coupled to a first reference voltage source and includes a fuse that is capable of being selectively blown according to an initial setting signal. The fuse has a first terminal coupled to a node and a second terminal. The voltage establishing module establishes a voltage level on the node according to the blown-off status of the fuse. The latch is coupled to the voltage establishing module through the node for latching the voltage level of the node and generating the output signal. The current blocking module is coupled between a second reference voltage source and the second terminal of the fuse for blocking the current flowing through the fuse while initial setting.
