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4

AC Electrical Characteristics

Note 8: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On Resistance of the

switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).

AC Loading and Waveforms

FIGURE 1. AC Test Circuit

Note: Input driven by 50

: source terminated in 50:.

Input PRR

FIGURE 2. AC Waveforms

Symbol

Parameter

Units

Conditions

Figure

(V)

Min

Typ

(Note 7)

Max

Number

Propagation Delay Bus-to-Bus

4.5–5.5

0.25

ns

Figures

1, 2

(Note 8)

Output Enable Time

4.5–5.5

1.5

7.5

ns

Figures

1, 2

Output Disable Time

4.5–5.5

1.0

6.0

ns

Figures

1, 2

Symbol

Parameter

Typ

Max

Units

Conditions

Control Pin Input Capacitance

2

5

pF

Input/Output Capacitance

4.5

10

pF