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Edge Rate of CY23EP05

Last Updated: July 01, 2014

Can the edge rate of the CY23EP05 meet 1.5V/ns when the frequency is 66 MHz and CL=30pf?


The CY23EP05 cannot deliver a slew rate of 1.5V/ns at the 30pF load. The spec for rise/fall time @ 30 pF load and 3.3V operation with high drive (-1H) setting has a maximum of 1.2ns. Since the rise/fall time is measured from 0.8V to 2.0V, this gives a minimum slew rate of 1.2V/1.2ns = 1V/ns. The CY23EP05 has the fastest edge rate among our buffers-- the CY2305C only supports 1.2V/1.5ns = 0.8V/ns minimum edge rate. The only way to get a 1.5V/ns or faster edge rate from any of our devices is to significantly decrease the load to around 15pF.

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