Single phase clock distribution circuit for providing clock signals to multiple chip integrated circuit systems

摘要

A circuit to provide single phase clock signals having controlled clock skew to multiple integrated circuit chips is described. A source of single phase clock signals is supplied to a clock signal distribution tree of each integrated circuit. Phase comparison of signals produced by each clock distribution circuit tree provides a control signal for controlling the delay of a clock signal applied to a respective clock distribution tree. A gating circuit is disclosed which produces, in response to each clock signal produced by the clock distribution trees, an accurately controlled LOAD ENABLE and OUTPUT ENABLE signal.