Initialization for fuse control

摘要

A circuit and method are provided for generating an initializing signal to a master enable fuse circuit on a redundant line decoder. An initialization pulse may be applied to a master enable circuit having a master enable fuse. The master enable fuse may be coupled to a switched voltage supply powered selectively by battery voltage and external Vcc. A circuit for generating the INITIAL signal determines the transition from a power down state to a powered state. A series of delay elements in a generating circuit generates a predetermined initialization pulse of around 3 ns to 5 ns. Half-latch circuits may be initialized between a first and second voltage threshold. Accordingly, the master enable circuits may be set to the proper initialization states for proper operation and minimum power consumption.