Patent ID: 6230275
Filing Date: 2001-05-08
Classification: G11C,H03K

Abstract:
A system for powering down configuration circuits to minimize power consumption comprising, in combination:at least one first configuration circuit for configuring a peripheral module; anda second configuration circuit coupled to said peripheral module and to said at least one first configuration circuit for enabling and disabling said peripheral module and for powering down said at least one first configuration circuit to minimize current consumption of said at least one first configuration circuit when said peripheral module is disabled;wherein said second configuration circuit comprises:a second configuration circuit memory cell for holding a programming state of said second configuration circuit;a second confiluration circuit current source coupled to said second configuration circuit memory cell for providing a programming current to said second configuration circuit memory cell and for preventing current flow when said second configuration circuit memory cell is not programmed; andsecond configuration circuit control logic coupled to said second configuration circuit current source for controlling said second configuration circuit current source.