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HD74LV2G123A

Renesas Technology
Part Number HD74LV2G123A
Manufacturer Renesas Technology
Description Retriggerable Monostable Multivibrator
Published Jul 3, 2009
Detailed Description www.DataSheet4U.com HD74LV2G123A Retriggerable Monostable Multivibrator REJ03D0098–0300Z (Previous ADE-205-352B (Z)) Re...
Datasheet PDF File HD74LV2G123A PDF File

HD74LV2G123A
HD74LV2G123A

Overview
www.
DataSheet4U.
com HD74LV2G123A Retriggerable Monostable Multivibrator REJ03D0098–0300Z (Previous ADE-205-352B (Z)) Rev.
3.
00 Sep.
30.
2003 Description The HD74LV2G123A 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.
Once triggered, the basic pulse duration can be extended by retriggering the gated low-level active (A) or high-level active (B) input.
Pulse duration can be reduced by taking CLR low.
The output pulse equation is simply : tWQ = Cext • Rext.
Low voltage and high-speed operation is suitable for the battery powered products (e.
g.
, notebook computers), and the low power consumption extends the battery life.
Features • The basic gate function is lined up as Renesas uni logic series.
• Supplied on emboss taping for high-speed automatic mounting.
• Electrical characteristics equivalent to the HD74LV123A Supply voltage range : 1.
65 to 5.
5 V Operating temperature range : –40 to +85°C • 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 (@VCC = 3.
0 V to 3.
6 V), ±12 mA (@VCC = 4.
5 V to 5.
5 V) • All the logical input has hysteresis voltage for the slow transition.
• Ordering Information Part Name Package Type Package Code TTP-8DBV Package Abbreviation US Taping Abbreviation (Quantity) E (3,000 pcs/reel) HD74LV2G123AUSE SSOP-8 pin Rev.
3.
00, Sep.
30.
2003, page 1 of 18 www.
DataSheet4U.
com HD74LV2G123A Outline and Arti...


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