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 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
Y
Y
Y
Y
Y
Y
70 ns to
%
output width range
Resettable and retriggerable 0% to 100% duty cycle
TTL input gating leading or trailing edge triggering
Complementary TTL outputs
Optional retrigger lock-out capability
Pulse width compensated for V
CC
and temperature
variations
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 鈥?1
Order Number 9602DMQB 9602FMQB or DM9602N
See NS Package Number J16A N16E or W16A
Function Table
Pin No鈥檚
A
H
x
L
H
X
B
L
L
x
H
X
CLR
H
H
L
Trigger
Trigger
Reset
Operation
H
e
High Voltage Level
L
e
Low Voltage Level
X
e
Don鈥檛 Care
C
1995 National Semiconductor Corporation
TL F 6611
RRD-B30M105 Printed in U S A