A fast resolving BiNMOS synchronizer for parallel processor interconnect

The design, testing, and application of a BiNMOS metastability resolving synchronizer is described. High speed signaling requires multiple clock cycle metastability settling time. The integrated circuit provides low tau (fast resolution) and is considered one of the fastest synchronizers available to date. The circuit reduces metastability failure with a high gain-bandwidth product and longer settling time per clock cycle. High gain-bandwidth product is accomplished with n-p-n transistors driving a cross-coupled inverter latch with reduced node capacitance. Longer settling time is provided by omitting metastability immune circuitry and using a parallel staged synchronizer