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參數(shù)資料
| 型號： | FST32253QSCX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | 4-Input Digital Multiplexer |
| 中文描述： | CBT/FST/QS/5C/B SERIES, DUAL MULTIPLEXER, PDSO16 |
| 封裝： | 0.150 INCH, MO-137, QSOP-16 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大?。?/td> | 142K |
| 代理商： | FST32253QSCX |
3
www.fairchildsemi.com
F
AC Electrical Characteristics
Note 6:
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 the source (zero output impedance).
Capacitance
(Note 7)
Note 7:
T
A
=
+
25
°
C, f
=
1 MHz, Capacitance is characterized but not tested.
AC Loading and Waveforms
Note:
Input driven by 50
source terminated in 50
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
Symbol
Parameter
T
A
=
40
°
C to
+
85
°
C
C
L
=
50pF, 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 6)
Propagation Delay, Select to Bus A
1.25
1.25
ns
V
I
=
OPEN
Figures
1, 2
0.5
6.7
7.3
t
PZH
, t
PZL
Output Enable Time, Select to Bus B
Output Enable Time, I
OE
to Bus A, B
Output Disable Time., Select to Bus B
0.5
0.5
0.5
6.8
6.0
5.7
7.3
6.4
6.4
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
Figures
1, 2
t
PHZ
, t
PLZ
ns
Figures
1, 2
Output Disable Time, I
OE
to Bus A, B
0.5
5.7
6.5
Symbol
Parameter
Typ
3
Max
Units
pF
Conditions
C
IN
Control Pin Input Capacitance
V
CC
=
5.0V
C
I/O
A Port
B Port
Input/Output Capacitance
13
5
pF
pF
V
CC
, OE
=
5.0V
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