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參數(shù)資料
| 型號(hào)： | 9601 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Retriggerable One Shot(可再觸發(fā)的散粒) |
| 中文描述： | Retriggerable一炮（可再觸發(fā)的散粒） |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 147K |
| 代理商： | 9601 |
Switching Characteristics
at V
CC
e
5V and T
A
e
25
§
C (See Section 1 for Test Waveforms and Output Load)
Symbol
Parameter
From (Input)
To (Output)
Conditions
Min
Max
Units
t
PLH
Propagation Delay Time
Low to High Level Output
Negative Trigger
Input to
True Output
C
L
e
15 pF
C
X
e
0
R
X
e
5 k
X
40
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Negative Trigger
Input to
Complement Output
40
ns
t
PW(MIN)
Minimum True Output
Pulse Width
65
ns
t
PW
Pulse Width
R
X
e
10 k
X
C
X
e
1000 pF
3.08
3.76
m
s
C
STRAY
Maximum Allowable
Wiring Capacitance
Pin 13 to GND
50
pF
R
X
External Timing Resistor
DM96
25
k
X
R
X
External Timing Resistor
DM86
50
k
X
Operating Rules
1. An external resistor R
X
and an external capacitor C
X
are
required for operation. The value of R
X
can vary between
the limits shown in switching characteristics. The value of
C
X
is optional and may be adjusted to achieve the re-
quired output pulse width.
2. Output pulse width t
PW
may be calculated as follows:
t
PW
e
K R
X
C
X
1
a
0.7
R
X
(for C
X
l
10
3
pF)
K
&
0.34
R
X
in k
X
, C
X
in pF and t
PW
in ns.
(For C
X
k
10
3
pF, see curve.)
3. R
X
and C
X
must be kept as close as possible to the
circuit in order to minimize stray capacitance and noise
pickup. If remote trimming is required, R
X
may be split up
such that at least R
X(MIN)
must be as close as possible
to the circuit and the remote portion of the trimming re-
sistor R
k
R
X(MAX)
b
R
X
.
4. Set-up time (t
1
) for input trigger pulse must be
l
40 ns.
(See Figure 1).
Release time (t
2
) for input trigger pulse must be
l
40 ns.
(See Figure 2).
TL/F/6610–2
FIGURE 1
TL/F/6610–3
FIGURE 2
5. Retrigger pulse width (see Figure 3) is calculated as fol-
lows:
t
W
e
t
PW
a
t
PLH
e
K R
X
C
X
D
1
a
0.7
R
X
(
a
t
PLH
TL/F/6610–4
FIGURE 3
Typical ‘‘K’’ Coefficient Variation vs Timing Capacitance
The multiplicative factor ‘‘K’’ varies as a function of the tim-
ing capacitor, C
X
. The graph below details this characteris-
tic:
TL/F/6610–5
*
For further detailed device characteristics and output performance, please
refer to the NSC one-shot application note, AN-366.
3
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