Patent ID: 7719340
Filing Date: 2010-05-18
Classification: G11C

Abstract:
1. An internal power voltage trimming circuit for use in an internal power voltage generating circuit, comprising: a trimming control signal generator configured to decode an inputted address signal to generate a trimming selection signal and a plurality of trimming enable signals including a first trimming enable signal and a second trimming enable signal; and a plurality of internal power voltage level controllers including a first internal power voltage level controller and a second internal power voltage level controller, each of the plurality of internal power voltage level controllers controlling levels of internal power voltages based on the trimming selection signal and each of the plurality of trimming enable signals, wherein the trimming selection signal and the first trimming enable signal are supplied to a first latch of the first internal power voltage level controller, and the trimming selection signal and the second trimming enable signal are supplied to a second latch of the second internal power voltage level controller, and wherein the first latch is configured to maintain and output the supplied trimming selection signal and to be reset under control of the first trimming enable signal, and the second latch is configured to maintain and output the supplied trimming selection signal and to be reset under control of the second trimming enable signal.