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IBIS Models Support in Eldo<br />

Digital Levels<br />

Digital Levels<br />

IBIS defines both analog and digital ports.<br />

Table 17-3 and Table 17-4 show the different digital ports logic levels and the corresponding<br />

analog levels.<br />

Table 17-3. Digital Port Logic Levels<br />

Analog Input Digital Input: d_drive, d_enable and d_switch<br />

Vin > 0.5V Logic "1"<br />

Vin < 0.5V Logic "0"<br />

Table 17-4. Analog Levels<br />

Digital Output: d_receive Analog Output<br />

Logic "1”<br />

1.0 V<br />

Logic "0”<br />

0.0 V<br />

Logic "X”<br />

0.5 V<br />

Related Topics<br />

IBIS Device Standards<br />

IBIS Model Syntax<br />

750<br />

Eldo® User's Manual, 15.3

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