XR88C681J-F Datasheet, PDF(91/101 Page) Exar Corporation – Two Full Duplex, Independent Channels

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XR88C681J-F Datasheet, PDF (91/101 Pages) Exar Corporation – Two Full Duplex, Independent Channels

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K. TIMING DIAGRAMS

XR88C681

4.0V

2.0V

0.8V

Test Levels

2.0V

0.8V

Figure 50. Input and Output Levels for Timing Measurements

Note: AC testing inputs are driven at 0.4V for a logic â0â and 2.4V for a logic â1â except for -40 to 85(C and -55 to 125(C, logic â1â shall

be 2.6V. Timing measurements are made at 0.8V for a logic â0â and 2.0V for a logic â1â.

RESET

tRES

Figure 51. Reset Timing

Rev. 2.11

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