Patent ID: 8848427
Filing Date: 2014-09-30
Classification: G11C

Abstract:
1. A semiconductor integrated circuit, comprising: a variable resistive element coupled between a first node and a second node, the variable resistive element of which resistance is changed depending on the direction of current between the first and second nodes; a first supply current control unit coupled between an external voltage and the first node so as to control the supply of current from the external voltage to the first node in response to an input signal; a first sink current control unit coupled between the second node and a ground voltage so as to control a current sink from the second node to the ground voltage in response to the input signal; a second supply current control unit coupled between the external voltage and the second node so as to control the supply of current from the external voltage to the second node in response to the input signal; and a second sink current control unit coupled between the first node and the ground voltage so as to control a current sink from the first node to the ground voltage in response to the input signal, wherein one or more of the first supply current control unit, the first sink current control unit, the second supply current control unit and the second sink current control unit control the current according to both of the input signal and the resistance of the variable resistive element.