FSTU6800WM datasheet(3/5 Pages) FAIRCHILD

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AC Electrical Characteristics

Note 6: 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 the source (zero output impedance).

Capacitance (Note 7)

Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.

AC Loading and Waveforms

Note: Input driven by 50

Ω source terminated in 50 Ω, RU = RD = 500 Ω

Note: CL includes load and stray capacitance, CL= 50 pF

Note: Input PRR

= 1.0 MHz, t

W = 500 ns

FIGURE 1. AC Test Circuit

FIGURE 2. AC Waveforms

Symbol

Parameter

TA = −40 °C to +85 °C,

CL = 50 pF, RU = RD = 500Ω

Units

Conditions

Figure No.

VCC = 4.5 – 5.5V

VCC = 4.0V

Min

Max

Min

Max

tPHL,tPLH

Prop Delay Bus to Bus (Note 6)

0.25

VI = OPEN

Figures 1, 2

tPZH

Output Enable Time

7.0

30.0

35.0

VI = OPEN

BiasV

= GND

Figures 1, 2

tPZL

7.0

30.0

35.0

VI = 7V

BiasV

= 3V

tPHZ

Output Disable Time

1.0

6.1

6.5

VI = OPEN

BiasV

= GND

Figures 1, 2

tPLZ

1.0

7.3

6.8

VI = 7V

BiasV

= 3V

Symbol

Parameter

Typ

Max

Units

Conditions

CIN

Control Pin Input Capacitance

VCC = 5.0V

CI/O

Input/Output Capacitance

VCC, OE = 5.0V

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