Logic Receiver Responsive to Voltage Changes
Original Publication Date: 1978-Apr-01
Included in the Prior Art Database: 2005-Feb-20
In normal logic circuits, the output voltage (i.e., the "1" or "0" manifestation) depends on the input voltage level. For proper operation, a valid output "0" (low) state is obtained with the input voltage above some high voltage value, referred to as the minimum up level, and a valid "1" (high) state is obtained with the input voltage below some low value, referred to as the minimum down level. The voltage values falling between the maximum low level and the minimum high level give indeterminate outputs.