Patent ID: 8780654
Filing Date: 2014-07-15
Classification: G11C

Abstract:
1. An apparatus, comprising: a plurality of columns, wherein each of the plurality of columns includes a respective plurality of data storage cells and a respective pre-charge circuit; a column multiplexer coupled to receive input data from column outputs of the plurality of columns, wherein the column multiplexer is configured to controllably select input data from the plurality of columns dependent upon a column selection signal to generate a column multiplexer output; a sense amplifier configured to amplify the column multiplexer output by a gain level of the sense amplifier in response to assertion of an amplifier enable signal; a selection circuit configured to generate the plurality of row selection signals and the plurality of column selection signals dependent upon an input address and in response to the assertion of a selection enable signal; and a timing and control unit configured to generate the pre-charge control signal and the selection enable signal; wherein the timing and control unit is further configured to selectively generate the amplifier enable signal either a first time period or a second time period after generation of the selection enable signal, dependent upon a timing selection signal, wherein the timing selection signal is dependent upon a read current of at least one data storage cell of the plurality of data storage cells.