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FST3245WM View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
Manufacturer
FST3245WM
Fairchild
Fairchild Semiconductor Fairchild
FST3245WM Datasheet PDF : 5 Pages
1 2 3 4 5
AC Electrical Characteristics
Symbol
Parameter
TA 40 qC to 85 qC,
CL 50pF, RU RD 500:
VCC 4.5 – 5.5V
VCC 4.0V
Units
Conditions
Figure
Number
Min
Max
Min
Max
tPHL,tPLH
Propagation Delay Bus to Bus
(Note 7)
0.25
0.25
ns VI OPEN
Figures
1, 2
tPZH, tPZL
Output Enable Time
1.5
5.9
6.4
ns
VI 7V for tPZL
VI OPEN for tPZH
Figures
1, 2
tPHZ, tPLZ
Output Disable Time
1.5
6.0
5.7
ns
VI 7V for tPLZ
VI OPEN for tPHZ
Figures
1, 2
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)
Symbol
Parameter
Typ
CIN
Control Pin Input Capacitance
3
CI/O
Input/Output Capacitance
5
Note 8: TA 25qC, f 1 MHz, Capacitance is characterized but not tested.
Max
Units
pF
pF
Conditions
VCC 5.0V
VCC, OE 5.0V
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
3
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