Patent ID: 6580311
Filing Date: 2003-06-17
Classification: G11C

Abstract:
A circuit, comprising:an integrated circuit having a plurality of voltage supply lines, a pad for configuring said integrated circuit; a Schmitt trigger having an input connected to said pad and an output connected to said integrated circuit; a circuit configuration for supplying voltage to said integrated circuit through said pad; said circuit configuration including switches; each one of said switches for connecting said pad to a respective one of said plurality of said voltage supply lines; said circuit configuration including a control circuit for switching said switches on and off; and said control circuit being controlled by at least one on-chip control signal; said circuit configuration including driver circuits; said control circuit switching each one of said switches on and off with a respective one of said driver circuits; and said driver circuits having inputs connected to said pad; said circuit configuration including resistors; said driver circuits having outputs; and each one of said outputs of said driver circuits connected to one of said plurality of said voltage supply lines by a respective one of said resistors.