What is the most crucial parameter for a high-speed DDR module register?
It is proven by many real application cases that the short propagation delay is the key parameter for a high-speed DDR register. It was seen that even if a 100ps longer propagation from a register failed the DDR module, the shorter the better. In a high-speed DDR module, there is very little margin left for setup time due to the short duty cycle at high-speed, but also the RC delay from many memory chips driven by one register driver. Pericom’s DDR module register PI47SSTVF16857 and PI47SSTVF16859 are the fastest registers in the market, and are the proven “silver bullet” of resolving DDR module timing problems seen in critical timing system at four corner test.
