Patent ID: 6417726
Filing Date: 2002-07-09
Classification: G11C,H02J,H02M

Abstract:
A semiconductor device, comprising;a constant current control circuit for receiving an external power supply potential and outputting a first reference potential, said constant current control circuit including a first resistance circuit having a first resistance value that is varied according to external setting, and a potential output portion for outputting said first reference potential according to said first resistance value; a reference potential generating circuit for outputting a second reference potential according to said first reference potential, said reference potential generating circuit including a constant current source for outputting a constant current according to said first reference potential, and a second resistance circuit connected between said constant current source and a ground node, for outputting said second reference potential by flowing said constant current therethrough; and an internal power supply driving circuit for receiving said power supply potential and driving an internal power supply node according to said second reference potential.