Logic element for frequency divider - has FET circuit acting as coincidence gate in each stage of divider

摘要

The logic element having tow switching speed is used in frequency dividers. Five transistors (T1-5) are FET's having n-type conductivity. The first and second transistors receive respectively at their inputs, a voltage at two logic levels, and a two level periodic voltage. The element operates as a coincidence gate. A frequency divider, dividing by n, comprises n such elements (n is integer and greater than 1). Their first inputs are connected to the same clock. Their outputs are connected to the inputs of the following elements, the output of the final element being connected to the input of the first element.