NSC DM9602W-883, DM9602MW8, DM9602J-883 Datasheet
TL/F/6611
9602/DM9602 Dual Retriggerable, Resettable One Shots
June 1989
9602/DM9602 Dual Retriggerable,
Resettable One Shots
General Description
These dual resettable, retriggerable one shots have two inputs per function; one which is active high, and one which is
active low. This allows the designer to employ either leading-edge or trailing-edge triggering, which is independent of
input transition times. When input conditions for triggering
are met, a new cycle starts and the external capacitor is
allowed to rapidly discharge and then charge again. The
retriggerable feature permits output pulse widths to be extended. In fact a continuous true output can be maintained
by having an input cycle time which is shorter than the output cycle time. The output pulse may then be terminated at
any time by applying a low logic level to the RESET pin.
Retriggering may be inhibited by either connecting the Q
output to an active high input, or the Q
output to an active
low input.
Features
Y
70 ns to%output width range
Y
Resettable and retriggerableÐ0% to 100% duty cycle
Y
TTL input gatingÐleading or trailing edge triggering
Y
Complementary TTL outputs
Y
Optional retrigger lock-out capability
Y
Pulse width compensated for VCCand temperature
variations
Y
Alternate Military/Aerospace device (54xxx) is available.
Contact a National Semiconductor Sales Office/Distributor for specifications.
Connection Diagram
Dual-In-Line Package
TL/F/6611– 1
Order Number 9602DMQB, 9602FMQB or DM9602N
See NS Package Number J16A, N16E or W16A
Function Table
Pin No’s.
Operation
A B CLR
HxL L H Trigger
HL
x
H H Trigger
X X L Reset
HeHigh Voltage Level
L
e
Low Voltage Level
X
e
Don’t Care
C
1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.
Absolute Maximum Ratings (Note)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage 7V
Input Voltage 5.5V
Operating Free Air Temperature Range
Military
b
55§Ctoa125§C
Commercial 0
§
Ctoa70§C
Storage Temperature Range
b
65§Ctoa150§C
Note:
The ‘‘Absolute Maximum Ratings’’ are those values
beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The
parametric values defined in the ‘‘Electrical Characteristics’’
table are not guaranteed at the absolute maximum ratings.
The ‘‘Recommended Operating Conditions’’ table will define
the conditions for actual device operation.
Recommended Operating Conditions
Symbol Parameter
Military Commercial
Units
Min Nom Max Min Nom Max
V
CC
Supply Voltage 4.5 5 5.5 4.75 5 5.25 V
V
IH
High Level Input T
A
eb
55§C2
Voltage
T
A
e
0§C 1.9
T
A
e
25§C 1.7 1.8 V
T
A
e
75§C 1.65
T
A
e
125§C 1.5
V
IL
Low Level Input T
A
eb
55§C 0.85
Voltage
T
A
e
0§C 0.85
T
A
e
25§C 0.9 0.85 V
T
A
e
75§C 0.85
T
A
e
125§C 0.85
I
OH
High Level Output Current
b
0.8
b
0.8 mA
I
OL
Low Level Output Current 16 16 mA
T
A
Free Air Operating Temperature
b
55 125 0 75
§
C
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol Parameter Conditions (Note 3) Min
Typ
Max Units
(Note 1)
V
I
Input Clamp Voltage V
CC
e
Min, I
I
eb
12 mA
b
1.5 V
V
OH
High Level Output V
CC
e
Min, I
OH
e
Max
Voltage V
IL
e
Max, V
IH
e
Min 2.4 V
(Note 4)
V
OL
Low Level Output V
CC
e
Min, I
OL
e
Max MIL 0.4
Voltage V
IL
e
Max, V
IH
e
Min
COM
0.45
V
(Note 4)
I
IH
High Level Input Current V
CC
e
Max, V
I
e
4.5V 60 mA
I
IL
Low Level Input V
CC
e
Max MIL V
I
e
0.40V
b
1.6
Current
COM V
I
e
0.45V
b
1.6
mA
V
CC
e
Min MIL V
I
e
0.40V
b
1.24
COM V
I
e
0.45V
b
1.41
I
OS
Short Circuit V
CC
e
Max, V
OUT
e
1V MIL
b
25
mA
Output Current (Notes 2 and 4)
COM
b
35
I
CC
Supply Current V
CC
e
Max MIL 39 45
mA
COM 39 50
Note 1: All typicals are at V
CC
e
5V, T
A
e
25§C.
Note 2: Not more than one output should be shorted at a time.
Note 3: Unless otherwise noted, R
X
e
10k for all tests.
Note 4: Ground PIN 1(15) for V
OL
on PIN 7(9) or VOHand IOSon PIN 6(10) and apply momentary ground to PIN 4(12). Open PIN 1(15) for VOLon PIN 6(10) or V
OH
and IOSon PIN 7(9).
2
Switching Characteristics V
CC
e
5V, T
A
e
25§C (See Section 1 for Test Waveforms and Output Load)
Symbol Parameter Conditions
Military Commercial
Units
Min Max Min Max
t
PLH
Propagation Delay Time, Negative Trigger Input
35 40 ns
Low-to-High Level Output to True Output
t
PHL
Propagation Delay Time, Negative Trigger Input
C
L
e
15 pF
43 48 ns
High-to-Low Level Output To Complement Output
C
X
e
0
tPW(MIN) Minimum True Output
R
X
e
5kX
90 100
Pulse Width
ns
Minimum Complement
100 110
Pulse Width
t
PW
Pulse Width R
X
e
10 kX
3.08 3.76 3.08 3.76 ms
C
X
e
1000 pF
C
STRAY
Maximum Allowable Wiring Pins 2, 14 to
50 50 pF
Capacitance GND
R
X
External Timing Resistor 5 25 5 50 kX
Logic Diagrams
TL/F/6611– 2
Operating Rules
TL/F/6611– 3
1. An external resistor (RX) and external capacitor (CX) are
required as shown in the Logic Diagram.
2. The value of C
X
may vary from 0 to any necessary value
available. If, however, the capacitor has leakages approaching 3.0 mA or if stray capacitance from either terminal to ground is more than 50 pF, the timing equations
may not represent the pulse width obtained.
3. The output pulse with (t) is defined as follows:
t
e
KRXC
X
Ð
1
a
1
R
X
(
for C
X
l
103pF
K&0.34
where: R
X
is in kX,CXis in pF
tisinns
for C
X
k
103pF, see
Figure 1.
forKvsCXsee
Figure 6.
4. If electrolytic type capacitors are to be used, the following
three configurations are recommended:
A. Use with low leakage capacitors:
The normal RC configuration can be used predictably
only if the forward capacitor leakage at 5.0V is less
than 3 mA, and the inverse capacitor leakage at 1.0V is
less than 5 mA over the operational temperature
range.
Rk0.6 RX(Max) TL/F/6611– 4
3
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