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Extending the data read from an asynchronous FIFO | Cypress Semiconductor

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Extending the data read from an asynchronous FIFO

Last Updated: February 28, 2011

Is there something I can do if my processor requires a long setup and hold time to latch incoming data?
How can I extend the amount of time the data is valid for?
Is there a way to extend the duration of valid data on the outputs?


tDVR is measured from the rising edge of /R to the point where the next piece of data is no longer valid and may vary from device to device. If you need the data to be valid for much longer on the output data bus, keep /R LOW longer. Data will be on the output data bus tA after the falling edge of /R, and will remain valid for as long as /R is LOW. The rising edge of /R signifies the end of the current read operation. Data remains on the data bus for tDVR after that point.

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