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3.2.5. Maximum Allowable External AS_DATA Pin Skew Delay Guidelines
Skew delay includes the following elements:
- The delay due to the differences in board traces lengths on the PCB
- The capacitance loading of the flash device
The table below lists the maximum allowable skew delay depending on the AS_CLK frequency. Intel recommends that you to perform IBIS simulations to ensure that the skew delay does not exceed the maximum delay specified in this table.
Symbol | Description | Frequency | Min | Typical | Max |
---|---|---|---|---|---|
Text_skew | Skew delay for AS_DATA for the AS_CLK frequency specified | 125 MHz | — | — | 4.00 |
115 MHz | — | — | 4.20 | ||
100 MHz | — | — | 5.0 | ||
<100 MHz | — | — | 5.0 |