Feed forward testing

A method of testing an integrated circuit. A first subset of test parameters is selected from a full set of test parameters designed to characterize given properties of the integrated circuit. A first subset of devices in the integrated circuit is tested with the first subset of test parameters, using different input levels to determine an acceptable low input level and an acceptable high input level for the first subset of test parameters on the first subset of devices. At least a second subset of devices in the integrated circuit is tested, where the second subset of devices is greater in number than the first subset of devices. The test is accomplished with at least a second subset of test parameters using the acceptable low input level and the acceptable high input level, to determine whether the integrated circuit functions properly at the acceptable low input level and the acceptable high input level. The integrated circuit is selectively binned based upon the determination of whether the integrated circuit functions properly at the acceptable low input level and the acceptable high input level.