Patent ID: 8159270
Filing Date: 2012-04-17
Classification: G11C,H03K

Abstract:
1. An integrated circuit, comprising: at least one circuit block powered by a power supply domain and operable at full swing signals with respect to the power supply domain; and a plurality of outputs from the integrated circuit, wherein at least one of the outputs comprises a high common mode signal with respect to the power supply domain and wherein at least one other output comprises a low common mode signal with respect to the power supply domain, wherein the at least one high common mode signal is produced by a transmitter stage comprising two serially-connected P-channel transistors, and wherein the at least one low common mode signal is produced by a transmitter stage comprising two serially-connected N-channel transistors, wherein the at least one high common mode signal is produced at a node between the two serially-connected P-channel transistors, and wherein the at least one low common mode signal is produced at a node between the two serially-connected N-channel transistors.