FST162245
AC Electrical Characteristics
T
A
= −40 °C
to
+85 °C,
Symbol
Parameter
C
L
=
50pF, RU
=
RD
=
500Ω
V
CC
=
4.5 – 5.5V
Min
t
PHL
, t
PLH
t
PZH
, t
PZL
t
PHZ
, t
PLZ
Propagation Delay Bus-to-Bus
(Note 7)
Output Enable Time
Output Disable Time
1.0
1.0
Max
1.25
6.1
6.1
V
CC
=
4.0V
Min
Max
1.25
6.9
6.5
ns
ns
ns
V
I
=
OPEN
V
I
=
7V for t
PZL
V
I
=
OPEN for t
PZH
V
I
=
7V for t
PLZ
V
I
=
OPEN for t
PHZ
Figures
1, 2
Figures
1, 2
Figures
1, 2
Units
Conditions
Figure
Number
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
Symbol
C
IN
C
I/O
(Note 8)
Parameter
Typ
3
6
Max
Units
pF
pF
Conditions
V
CC
=
5.0V, V
IN
=
0V
V
CC
, OE
=
5.0V, V
IN
=
0V
Control Pin Input Capacitance
Input/Output Capacitance “OFF State”
Note 8:
T
A
= +25°C,
f
=
1 MHz, Capacitance is characterized but not tested.
AC Loading and Waveforms
Note:
Input driven by 50Ω source terminated in 50Ω
Note:
C
L
includes load and stray capacitance
Note:
Input PRR
=
1.0 MHz, t
W
=
500 ns
FIGURE 1. AC Test Circuit
FIGURE 2. AC Waveforms
3
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