APPARATUSES AND METHODS FOR SENSING FUSE STATES

摘要

Apparatuses and methods for sensing fuse states are disclosed herein. An apparatus may include an array having a plurality of sense lines. A plurality of cells may be coupled to a sense line of the plurality of sense lines. A fuse sense circuit may coupled to the sense line of the plurality of sense lines and configured to receive a sense voltage from a cell of the plurality of cells. The sense voltage may be based, at least in part, on a state of a fuse corresponding to the cell of the plurality of cells. The fuse sense circuit may further be configured to compare the sense voltage to a reference voltage to provide a fuse state control signal indicative of the state of the fuse.

主权项

1. An apparatus, comprising:
a fuse sense circuit coupled to a sense line and configured to receive a sense voltage from a cell associated with the sense line, the sense voltage based on a state of a fuse corresponding to the cell, wherein the fuse sense circuit is further configured to determine whether the sense voltage exceeds a reference voltage using a plurality of unblown fuses.