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HD74LV221A

Renesas
Part Number HD74LV221A
Manufacturer Renesas
Description Dual Monostable Multivibrators
Published Dec 4, 2017
Detailed Description HD74LV221A Dual Monostable Multivibrators REJ03D0326–0600Z (Previous ADE-205-271D (Z)) Rev.6.00 Jun. 23, 2004 Descriptio...
Datasheet PDF File HD74LV221A PDF File

HD74LV221A
HD74LV221A


Overview
HD74LV221A Dual Monostable Multivibrators REJ03D0326–0600Z (Previous ADE-205-271D (Z)) Rev.
6.
00 Jun.
23, 2004 Description The HD74LV221A features output pulse-duration control by three methods.
In the first method, the A input is low and the B input goes high.
In the second method, the B input is high and the A input goes low.
In the third method, the A input is low, the B input is high, and the clear (CLR) input goes high.
The basic pulse duration is programmed by selecting external resistance and capacitance values.
The external timing capacitor must be connected between Cext and Rext/Cext (positive) and an external resistor connected between Rext/Cext and VCC.
To obtain variable pulse durations, connect an external variable resistance between Rext/Cext and VCC.
Pulse duration can be reduced by taking CLR low.
Features • VCC = 2.
0 V to 5.
5 V operation • All inputs VIH (Max.
) = 5.
5 V (@VCC = 0 V to 5.
5 V) • All outputs VO (Max.
) = 5.
5 V (@VCC = 0 V) • Output current ±6 mA ...


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