TECHNICAL DATA
IN74123
Dual Monostable Multivibrator
with Clear
The IN74123 multivibrator feature d-c triggering from gated low-
level-active (A) and high-level-active (B) inputs, and also provide
overriding direct clear inputs. Complementary outputs are provided. The
retrigger capability simplifies the output pulse is terminated, the output
pulse may be extended. The overriding clear capability permits any output
pulse to be terminated at a predetermined time independently of the
timing components R and C. Figure 1 illustrates triggering the one-shot
with the high-level-active (B) inputs.
ORDERING INFORMATION
IN74123N Plastic
LOGIC DIAGRAM
TA = -10° to 70° C for package
PIN ASSIGNMENT
Pin 16 = VCC
Pin 8 = GND
FUNCTION TABLE
Inputs
Outputs
Clear
L
A
X
H
X
L
B
X
X
L
Q
Q
H
H
H
L
L
L
X
X
H
H
H
H
L
X = don’t care
Timing Component
Connections when
CEXT ≤ 1000 pF
Timing Component Connections when
CEXT > 1000 pF and Clear is used
1
IKSEMICON [ IK SEMICON CO., LTD ]
