FST3345WM datasheet(3/5 Pages) FAIRCHILD

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AC Electrical Characteristics

Note 7: 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 50pF load capacitance, when driven by an ideal voltage the source (zero output impedance).

Capacitance (Note 8)

Note 8: TA

25qC, f 1 MHz, Capacitance is characterized but not tested.

AC Loading and Waveforms

Note: Input driven by 50

: source terminated in 50 :

Note: CL includes load and stray capacitance

Note: Input PRR

1.0 MHz tW 500 nS

FIGURE 1. AC Test Circuit

FIGURE 2. AC Waveforms

Symbol

Parameter

TA 40 qC to 85 qC,

CL 50 pF, RU RD 500:

Units

Conditions

Figure

No.

VCC 4.5 5.5V

VCC 4.0V

MinMax

tPHL,tPLH

Propagation Delay Bus to Bus

(Note 7)

0.25

VI OPEN

Figures

1, 2

tPZH, tPZL

Output Enable Time

1.5

6.5

7.0

VI 7V for tPZL

Figures

1, 2

VI OPEN for tPZH

tPHZ, tPLZ

Output Disable Time

1.0

8.0

8.2

VI 7V for tPLZ

Figures

1, 2

VI OPEN for tPHZ

Symbol

Parameter

Typ

Max

Units

Conditions

CIN

Control Pin Input Capacitance

VCC 5.0V

CI/O

Input/Output Capacitance

VCC, OE 5.0V, OE 0V

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