Datasheet

3
FIGURE 2. LOGIC DIAGRAM (1 MONO)
FUNCTIONAL TERMINAL CONNECTIONS
FUNCTION
V
CC
TO
TERMINAL NUMBER
GND TO
TERMINAL NUMBER
INPUT PULSE TO
TERMINAL NUMBER
OTHER
CONNECTIONS
MONO
1
MONO
2
MONO
1
MONO
2
MONO
1
MONO
2
MONO
1
MONO
2
Leading-Edge
Trigger/Retriggerable
3, 5 11, 13 4 12
Leading-Edge
Trigger/Non-Retriggerable
3 13 4 12 5-7 11-9
Trailing-Edge
Trigger/Retriggerable
313412511
Trailing-Edge
Trigger/Non-Retriggerable
3 13 5 11 4-6 12-10
NOTES:
1. A retriggerable one-shot multivibrator has an output pulse width which is extended one full time period (T) after application of the last
trigger pulse.
2. A non-triggerable one-shot multivibrator has a time period (T) referenced from the application of the first trigger pulse.
FIGURE 3. INPUT PULSE TRAIN FIGURE 4. RETRIGGERABLE MODE
PULSE WIDTH (A MODE)
FIGURE5. NON-RETRIGGERABLEMODE
PULSE WIDTH
(A MODE)
D
CL
CL
Q
Q
R2R1
FF
V
CC
V
CC
R
X
C
X
2(14)
1(15)
8
R
A
B
3(13)
4(12)
5(11)
V
CC
V
CC
HIGH Z
V
CC
V
CC
R1
R2
COMP II
-
+
6(10)
7(9)
Q
Q
V
CC
16
T
T
CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538