Patent ID: 8698553
Filing Date: 2014-04-15
Classification: G05F

Abstract:
1. An internal voltage generating circuit, comprising: a first pull up resistor configured to be activated by a first range signal and connected between a pull up voltage terminal and a pull up common node; a second pull up resistor configured to be activated by a second range signal and connected between the pull up voltage terminal and the pull up common node; a first pull down resistor configured to be activated by the first range signal and connected between a pull down voltage terminal and a pull down common node; a second pull down resistor configured to be activated by the second range signal and connected between the pull down voltage terminal and the pull down common node; a resistor string including a plurality of series resistors connected between the pull up common node and the pull down common node; and a voltage selection circuit configured to select a voltage of at least one of a plurality of nodes with which the series resistors are connected, in response to voltage selection information.