Control circuit for disabling or enabling the provision of redundancy

摘要

A logic circuit for activating and deactivating redundant elements include a high-low-high circuit and a dynamic latch coupled to the output of the high-low-high circuit for activating the redundant elements in response to true and complement address signals. The high-low-high circuit includes a first fuse which is blown so as to enable the redundant elements and a second fuse which is blown to disable the redundant elements.