Patent ID: 7443740
Filing Date: 2008-10-28
Classification: G11C

Abstract:
1. An integrated semiconductor memory with an adjustable internal voltage, comprising: a controllable voltage generator configured to receive a control signal and to generate a supply voltage whose level is a function of the control signal; a clock generator circuit configured to receive the supply voltage and an external clock signal and to generate an internal clock signal that exhibits a phase angle with respect to the external clock signal, the phase angle being dependent on the level of the supply voltage; and a contact pad that receives the supply voltage and provides external access to the supply voltage, the contact pad being configured to be contacted by contact points of a measuring instrument; wherein the controllable voltage generator enables adjustment of the control signal by supplying the supply voltage to the contact pad; and wherein a state of the control signal received by the controllable voltage generator is dependent on the level of the supply voltage measured by the measuring instrument at the contact pad.