參數(shù)資料
型號： FST3384A
文件頁數(shù)： 120/178頁
文件大?。?/td> 3973K
代理商： FST3384A
3
www.fairchildsemi.com
F
AC Electrical Characteristics
Note 6:
All typical values are at V
CC
=
5.0V, T
A
=
25
°
C.
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 resis-
tance of the switch and the load capacitance. The time constant for the switch and alone is of the order of 0.25 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)
Note 8:
Capacitance is characterized but not tested.
On-Resistance (R
ON
) vs Input Voltage
(V
CC
=
5.0V)
Symbol
Parameter
V
CC
(V)
T
A
=
40
°
C to
+
85
°
C, C
L
=
50 pF
Typ
(Note 6)
Units
Min
Max
t
PLH
,
t
PHL
t
PLH
,
t
PHL
t
PZL
,
t
PZH
t
PLZ
,
t
PHZ
Data Propagation Delay
A
n
to C
n
, D
n
or B
n
to D
n
, C
n
(Note 7)
Switch Exchange Time
BX to A
n
, B
n
, C
n
, D
n
Switch Enable Time
4.75
0.25
ns
4.75
1.5
6.5
ns
4.75
1.5
6.5
ns
BE to A
n
, B
n
, C
n
or D
n
Switch Disable Time
BE to A
n
, B
n
, C
n
, or D
n
4.75
1.5
5.5
ns
Symbol
Parameter
Typ
4
Max
6
Units
pF
Conditions
V
CC
=
5.0V
V
CC
=
5.0V
C
IN
C
I/O
(OFF)
Control Input Capacitance
Input/Output Capacitance
9
13
pF
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