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54LVX3383W-QML Scheda tecnica(PDF) 4 Page - National Semiconductor (TI) |
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54LVX3383W-QML Scheda tecnica(HTML) 4 Page - National Semiconductor (TI) |
4 / 6 page AC Electrical Characteristics Symbol Parameter V CC (V) T A = −55˚C to +125˚C Units C L = 50 pF Min Max t PLH, Data Propagation Delay 4.5-5.5 0.25 ns t PHL A n to Cn,Dn or Bn to Dn,Cn (Note 6) t PLH, Switch Exchange Time 4.5-5.5 1.5 7.0 ns t PHL BX to A n,Bn,Cn,Dn t PZL, Switch Enable Time 4.5-5.5 1.5 7.0 ns t PZH BE to A n,Bn,Cn or Dn t PLZ, Switch Disable Time 4.5-5.5 1.5 7.0 ns t PHZ BE to A n,Bn,Cn,orDn Note 5: All typical values are at VCC = 5.0V, TA = 25˚C. Note 6: This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the On resistance of the switch and the load capacitance. The time constant for the switch and alone is of the order of 0.25 ns for 50 pF load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the bus switch when used in a system is de- termined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. Capacitance (Note 7) Symbol Parameter Max Units Conditions C IN Control Input Capacitance 12 pF V CC = 5.0V C I/O (OFF) Input/Output Capacitance 20 pF V CC = 5.0V Note 7: Capacitance is characterized but not tested. 54LVX3383 V IN vs RON (Typ) DS011652-4 www.national.com 4 |
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