![](http://datasheet.mmic.net.cn/230000/9602_datasheet_15573271/9602_1.png)
TL/F/6611
9
June 1989
9602/DM9602 Dual Retriggerable,
Resettable One Shots
General Description
These dual resettable, retriggerable one shots have two in-
puts per function; one which is active high, and one which is
active low. This allows the designer to employ either lead-
ing-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 ex-
tended. In fact a continuous true output can be maintained
by having an input cycle time which is shorter than the out-
put 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 retriggerableD0% to 100% duty cycle
Y
TTL input gatingDleading or trailing edge triggering
Y
Complementary TTL outputs
Y
Optional retrigger lock-out capability
Y
Pulse width compensated for V
CC
and temperature
variations
Y
Alternate Military/Aerospace device (54xxx) is available.
Contact a National Semiconductor Sales Office/Distrib-
utor 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
H
x
L
H
X
H
H
L
Trigger
Trigger
Reset
L
x
H
X
H
e
High Voltage Level
L
e
Low Voltage Level
X
e
Don’t Care
C
1995 National Semiconductor Corporation
RRD-B30M105/Printed in U. S. A.