參數(shù)資料
型號: FST3384A
文件頁數(shù): 131/178頁
文件大小: 3973K
代理商: FST3384A
AC Electrical Characteristics
Symbol
Parameter
V
CC
(V)
T
A
= 40C to +85C
C
L
= 50 pF
Typ
(Note 6)
Units
Min
Max
t
PLH
t
PHL
Data Propagation Delay
A
n
to B
n
or B
n
to A
n
(Note 7)
Switch Enable Time
BE A, BE B to A
n
, B
n
Switch Disable Time
BE A, BE B to A
n
, B
n
4.75
0.50
ns
t
PZL
t
PZH
t
PLZ
t
PHZ
4.75
1.5
6.8
ns
4.75
1.5
6.0
ns
Note 6:
All typical values are at V
CC
= 5.0V, T
A
= 25C.
Note 7:
This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the On resistance of
the switch and the load capacitance. The time constant for the switch and alone is of the order of 0.5 ns for 50 pF load. Since this time constant is much smaller than
the rise/fall times of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the bus switch when used in a system is determined
by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.
Capacitance
(Note 8)
Symbol
Parameter
Typ
4
9
Max
6
13
Units
pF
pF
Conditions
V
CC
= 5.0V
V
CC
= 5.0V
C
IN
C
I/O
(OFF)
Control Input Capacitance
Input/Output Capacitance
Note 8:
Capacitance is characterized but not tested.
FST3384A V
IN
vs R
ON
(Typ)
DS012481-3
www.fairchildsemi.com
4
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