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FSTU162211 Datasheet(PDF) 4 Page - Fairchild Semiconductor

No. de Pieza. FSTU162211
Descripción  24-Bit Bus Switch with .2V Undershoot Protection and 25Ω Series Resistors in Outputs (Preliminary)
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Fabricante  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
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FSTU162211 Datasheet(HTML) 4 Page - Fairchild Semiconductor

   
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Preliminary
www.fairchildsemi.com
4
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 source (zero output impedance).
Capacitance (Note 8)
Note 8: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.
Undershoot Characteristic
Note 9: This test is intended to characterize the device’s protective capabilities by maintaining output signal integrity during an input transient voltage under-
shoot event.
FIGURE 1.
Device Test Conditions
Transient
Input Voltage (VIN) Waveform
Symbol
Parameter
TA = −40 °C to +85 °C,
Units
Conditions
Figure
Number
CL = 50pF, RU = RD = 500Ω
VCC = 4.5 – 5.5V
VCC = 4.0V
Min
Max
Min
Max
tPHL, tPLH
Propagation Delay Bus to Bus
(Note 7)
1.25
1.25
ns
VI = OPEN
Figures 2,
3
tPZH, tPZL
Output Enable Time
1.5
6.0
6.5
ns
VI = 7V for tPZL
Figures 2,
3
VI = OPEN for tPZH
tPHZ, tPLZ
Output Disable Time
1.5
7.0
7.2
ns
VI = 7V for tPLZ
Figures 2,
3
VI = OPEN for tPHZ
Symbol
Parameter
Typ
Max
Units
Conditions
CIN
Control Pin Input Capacitance
3
pF
VCC = 5.0V
CI/O
Input/Output Capacitance
6
pF
VCC, OE = 5.0V
Symbol
Parameter
Min
Typ
Max
Units
Conditions
VOUTU
Output Voltage During Undershoot
2.5
VOH − 0.3
V
Parameter
Value
Units
VIN
see Waveform
V
R1 = R2
100K
VTRI
11.0
V
VCC
5.5
V


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