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參數(shù)資料
| 型號： | FSTU32X384 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 20-Bit Low Power Bus Switch with -2V Undershoot Protection |
| 中文描述： | 20位低功耗總線開關(guān)與- 2V的下沖保護 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大小： | 241K |
| 代理商： | FSTU32X384 |
www.fairchildsemi.com
4
F
AC Electrical Characteristics
Note 8:
This parameter is guaranteed by design but 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 9)
Note 9:
Capacitance is characterized but not tested.
Undershoot Characteristic
(Note 10)
Note 10:
This test is intended to characterize the device
’
s protective capabilities by maintaining output signal integrity during an input transient voltage
undershoot event.
FIGURE 1.
Device Test Conditions
Transient
Input Voltage (V
IN
) Waveform
Symbol
Parameter
T
A
=
40
°
C to
+
85
°
C
C
L
=
50 pF, RU
=
RD
=
500
V
CC
=
4.5
5.5V
Min
Max
Units
Conditions
Figure
Number
V
CC
=
4.0V
Min
Max
t
PHL
, t
PLH
Propagation Delay Bus to Bus
(Note 8)
Output Enable Time
0.25
0.25
ns
V
I
=
OPEN
Figures
2, 3
t
PZH
, t
PZL
1.0
5.7
6.2
ns
V
I
=
7V for t
PZL
V
I
=
OPEN for t
PZH
I
I
=
7V for t
PLZ
V
I
=
OPEN for t
PHZ
Figures
2, 3
OE
1
, OE
2
to A
n
, B
n
Output Disable Time
OE
1
, OE
2
to A
n
, B
n
t
PHZ
, t
PLZ
1.5
5.2
5.5
ns
Figures
2, 3
Symbol
C
IN
Parameter
Typ
3
Max
6
Units
pF
Conditions
V
CC
=
5.0V
Control Input Capacitance
C
I/O
(OFF)
Input/Output Capacitance
5
13
pF
V
CC
, OE
=
5.0V
Symbol
V
OUTU
Parameter
Min
2.5
Typ
Max
Units
V
Conditions
Figure 1
Output Voltage During Undershoot
V
OH
- 0.3
Parameter
V
IN
R
1
=
R
2
V
TRI
V
CC
Value
Units
V
V
V
see Waveform
100K
11.0
5.5
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