MC74HC4538A_16 Datasheet, PDF (12/14 Pages) ON Semiconductor – Dual Precision Monostable Multivibrator

MC74HC4538A
TYPICAL APPLICATIONS
RISING−EDGE
TRIGGER
C_X
R_X
V_CC
A
Q
B
Q
B = V_CC
RESET = V_CC
RISING−EDGE
TRIGGER
A
B
C_X
R_X
V_CC
Q
Q
RESET = V_CC
C_X
R_X
A = GND
B
FALLING−EDGE
TRIGGER
RESET = V_CC
V_CC
Q
Q
Figure 13. Retriggerable Monostable Circuitry
FALLING−EDGE
TRIGGER
A
B
C_X
R_X
V_CC
Q
Q
RESET = V_CC
Figure 14. Non−retriggerable Monostable Circuitry
GND N/C
A = GND
V_{CC B}
R_XC_X
Q
N/C
Q
N/C
RESET
Figure 15. Connection of Unused Section
ONE−SHOT SELECTION GUIDE
100 ns
MC14528B
MC14536B
MC14538B
MC14541B
HC4538A*
1 ms 10 ms 100 ms 1 ms 10 ms 100 ms 1 s
*Limited operating voltage (2 −6 V)
10 s
23 HR
5 MIN
TOTAL OUTPUT PULSE WIDTH RANGE
RECOMMENDED PULSE WIDTH RANGE
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