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FST3345WM Fiches technique(PDF) 3 Page - Fairchild Semiconductor

No de pièce FST3345WM
Description  8-Bit Bus Switch
Download  6 Pages
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Fabricant  FAIRCHILD [Fairchild Semiconductor]
Site Internet  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FST3345WM Fiches technique(HTML) 3 Page - Fairchild Semiconductor

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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 50pF 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
Note: CL includes load and stray capacitance
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
0.25
ns
VI = OPEN
Figure 1
Figure 2
tPZH, tPZL
Output Enable Time
1.5
6.5
7.0
ns
VI = 7V for tPZL
Figure 1
Figure 2
VI = OPEN for tPZH
tPHZ, tPLZ
Output Disable Time
1.0
8.0
8.2
ns
VI = 7V for tPLZ
Figure 1
Figure 2
VI = OPEN for tPHZ
Symbol
Parameter
Typ
Max
Units
Conditions
CIN
Control Pin Input Capacitance
4
pF
VCC = 5.0V
CI/O
Input/Output Capacitance
5
pF
VCC, OE = 5.0V, OE = 0V


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