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參數(shù)資料
| 型號： | FSTUD16211 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 24-Bit Bus Switch with -2V Undershoot Protection and Level Shifting |
| 中文描述： | 24位總線開關(guān)- 2V的下沖保護(hù)和電平轉(zhuǎn)換 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大小： | 300K |
| 代理商： | FSTUD16211 |
www.fairchildsemi.com
4
F
AC Electrical Characteristics
Note 8:
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 9)
Note 9:
T
A
=
+
25
°
C, f
=
1 MHz, 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
=
50pF, RU
=
RD
=
500
V
CC
=
4.5 – 5.5V
Min
Units
Conditions
Figure
No.
Max
0.25
t
PHL
, t
PLH
Propagation Delay Bus to Bus
(Note 8)
Output Enable Time
ns
V
I
=
OPEN
Figures
2, 3
Figures
2, 3
t
PZH
, t
PZL
1.5
5.5
ns
V
I
=
7V for t
PZL
V
I
=
OPEN for t
PZH
V
I
=
7V for t
PLZ
V
I
=
OPEN for t
PHZ
t
PHZ
, t
PLZ
Output Disable Time
1.5
6.5
ns
Figures
2, 3
Symbol
C
IN
C
I/O
OFF
Parameter
Typ
3.5
Max
Units
pF
Conditions
Control pin Input Capacitance
V
CC
=
5.0V
V
CC
=
5.0V, Switch OFF
Input/Output Capacitance
“
OFF State
”
5.5
pF
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
see Waveform
100K
11.0
5.5
V
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