Patent ID: 8369173
Filing Date: 2013-02-05
Classification: G11C

Abstract:
1. A method of changing a parameter in a semiconductor device, the method comprising: receiving and storing data in a storage region; and changing an AC timing characteristic of a parameter, used to access a non-volatile memory cell included in a memory core of the semiconductor device, according to the data stored in the storage region, wherein the changing the AC timing characteristic of the parameter comprises: generating a plurality of DC voltages according to a first portion of the data stored in the storage region; generating a plurality of AC timing signals according to a second portion of the data stored in the storage region; generating a parameter control signal by mixing one of the DC voltages and one of the AC timing signals in response to selection signals; changing the AC timing characteristic of the parameter in response to the parameter control signal; and accessing the non-volatile memory cell according to a changed parameter.