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MC74HC4538A_05 Datasheet, PDF (12/16 Pages) ON Semiconductor – Dual Precision Monostable Multivibrator (Retriggerable,Resettable) | |||
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MC74HC4538A
TYPICAL APPLICATIONS
RISINGâEDGE
TRIGGER
CX
RX
VCC
A
Q
B
Q
B = VCC
RESET = VCC
RISINGâEDGE
TRIGGER
A
B
CX
RX
VCC
Q
Q
RESET = VCC
CX
RX
A = GND
B
FALLINGâEDGE
TRIGGER
RESET = VCC
VCC
Q
Q
Figure 14. Retriggerable Monostable Circuitry
FALLINGâEDGE
TRIGGER
A
B
CX
RX
VCC
Q
Q
RESET = VCC
Figure 15. Nonâretriggerable Monostable Circuitry
GND N/C
A = GND
VCC B
RXCX
Q
N/C
Q
N/C
RESET
Figure 16. Connection of Unused Section
ONEâSHOT SELECTION GUIDE
100 ns 1 ms 10 ms 100 ms 1 ms 10 ms 100 ms 1 s
MC14528B
MC14536B
MC14538B
MC14541B
HC4538A*
*Limited operating voltage (2 â6 V)
10 s
23 HR
5 MIN
TOTAL OUTPUT PULSE WIDTH RANGE
RECOMMENDED PULSE WIDTH RANGE
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