FST162861MTD View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

View to exact match

FST162861MTD

20-Bit Bus Switch with 25
Ω Series Resistors in Outputs

Fairchild Semiconductor 

AC Electrical Characteristics

Symbol

Parameter

tPHL,tPLH

Prop Delay Bus to Bus (Note 9)

TA 40 qC to 85 qC,

CL 50 pF, RU RD 500:

VCC 4.5 – 5.5V

VCC 4.0V

Min

Max

Min

Max

1.25

1.25

Units

Conditions

ns VI OPEN

Figure

No.

Figures

1, 2

tPZH, tPZL

Output Enable Time

1.0

5.3

5.5

ns VI 7V for tPZL

VI OPEN for tPZH

Figures

1, 2

tPHZ, tPLZ

Output Disable Time

1.0

6.0

6.3

ns VI 7V for tPLZ

VI OPEN for tPHZ

Figures

1, 2

Note 9: 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 source (zero output impedance).

Capacitance (Note 10)

Symbol

Parameter

Typ

CIN

Control Pin Input Capacitance

3.5

CI/O

Input/Output Capacitance “OFF State”

6.0

Note 10: TA 25qC, f 1 MHz, Capacitance is characterized but not tested.

Max

AC Loading and Waveforms

Units

pF

pF

Conditions

VCC 5.0V, VIN 0V

VCC, OE 5.0V, VIN 0V

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

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FIGURE 2. AC Waveforms

4

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