Patent ID: 7649403
Filing Date: 2010-01-19
Classification: G11C

Abstract:
1. An internal voltage generating circuit for stably supplying a high voltage, comprising: a supply driving control unit for receiving a driving signal and generating a supply driving control signal in response to the received driving signal, wherein the supply driving control unit is controlled by the received driving signal; a pumping control signal generating unit for receiving the driving signal and outputting pumping control signals in response to only the received driving signal during an active mode, wherein the pumping control signal generating unit is controlled by only the received driving signal; and a charge pump unit for generating a high voltage being higher than an external voltage in response to the pumping control signals outputted from the pumping control signal generating unit and the supply driving control signal generated from the supply driving control unit, wherein the supply driving control unit includes: wherein the supply driving control signal of the supply driving control unit is not inputted to the pumping control signal generating unit, wherein the pumping control signal generating unit includes: wherein the first delay unit is an inverter chain configured with three inverters. the second delay unit is an inverter chain configured with six inverters. and the third delay unit is an inverter chain configured with five inverters.