Patent ID: 7417454
Filing Date: 2008-08-26
Classification: H03K

Abstract:
1. A configurable integrated circuit (IC) device, comprising: a first logic block including a number of first logic resources and an output multiplexing circuit, the first logic block having a power terminal coupled to a supply voltage; a second logic block including a number of second logic resources and an input multiplexing circuit, the second logic block having a power terminal coupled to the supply voltage; and a number of interconnect signal lines connected between the output multiplexing circuit and the input multiplexing circuit, wherein the input multiplexing circuit translates the voltage swing of logic signals received from the interconnect signal lines from a relatively low peak level to a relatively high peak level, wherein the output multiplexing circuit translates the voltage swing of logic signals generated in the first logic resources from the relatively high peak level to the relatively low peak level that is a voltage level of at least a threshold voltage below the relatively high peak level, and wherein the output multiplexing circuit comprises an output buffer having an input coupled to the first logic resources, the output buffer translating the voltage swing of logic signals received from the first logic resources from the relatively high peak level to the relatively low peak level and comprising an inverter having a first power terminal coupled to a low voltage supply and having a second power terminal coupled to ground potential, wherein the low voltage supply is less than the supply voltage.