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參數資料
| 型號： | FSTU162211 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 24-Bit Bus Switch with .2V Undershoot Protection and 25з Series Resistors in Outputs (Preliminary) |
| 中文描述： | 24位總線開關0.2 V下沖，在保護和25з輸出串聯電阻（初步） |
| 文件頁數： | 4/6頁 |
| 文件大小： | 271K |
| 代理商： | FSTU162211 |
Preliminary
www.fairchildsemi.com
4
F
AC Electrical Characteristics
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
(Note 8)
Note 8:
T
A
=
+
25
°
C, f
=
1 MHz, Capacitance is characterized but not tested.
Undershoot Characteristic
Note 9:
This test is intended to characterize the device
’
s protective capabilities by maintaining output signal integrity during an input transient voltage under-
shoot 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
Max
1.25
Units
Conditions
Figure
Number
V
CC
=
4.0V
Min
Max
1.25
t
PHL
, t
PLH
Propagation Delay Bus to Bus
(Note 7)
Output Enable Time
ns
V
I
=
OPEN
Figures 2,
3
Figures 2,
3
t
PZH
, t
PZL
1.5
6.0
6.5
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
7.0
7.2
ns
Figures 2,
3
Symbol
Parameter
Typ
3
Max
Units
pF
Conditions
C
IN
Control Pin Input Capacitance
V
CC
=
5.0V
C
I/O
Input/Output Capacitance
6
pF
V
CC
, OE
=
5.0V
Symbol
V
OUTU
Parameter
Min
2.5
Typ
Max
Units
V
Conditions
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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