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PDF HD74LV2GT123A Data sheet ( Hoja de datos )
| Número de pieza | HD74LV2GT123A | |
| Descripción | Retriggerable Monostable Multivibrator / CMOS Logic Level Shifter | |
| Fabricantes | Renesas Technology | |
| Logotipo |  |
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HD74LV2GT123A
Retriggerable Monostable Multivibrator
REJ03D0004-0200Z
(Previous ADE-205-699A(Z))
Rev.2.00
Apr.18.2003
Description
The HD74LV2GT123A 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.
• Control input is TTL compatible input level.
Supply voltage range : 4.5 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 ±12 mA (@VCC = 4.5 V to 5.5 V)
• All the logical inputs have hysteresis voltage for the slow transition.
• Ordering Information
Part Name
Package Type
HD74LV2GT123AUSE SSOP-8 pin
Package Code Package
Taping
Abbreviation Abbreviation (Quantity)
TTP-8DBV
US
E (3,000 pcs / Reel)
Rev.2.00, Apr.18.2003, page 1 of 14
1 page  
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HD74LV2GT123A
Electrical Characteristic
• Ta = –40 to 85°C
Item
Symbol VCC (V) * Min Typ Max Unit Test condition
Input voltage VIH 4.5 to 5.5 2.0
—
—
V
VIL
Hysteresis voltage VH
4.5 to 5.5
5.0
—
—
— 0.8
0.15 —
V VT+ – VT–
Output voltage VOH
Min to Max VCC–0.1 —
—
V IOH = –50 µA
4.5
3.8 —
—
IOH = –12 mA
VOL Min to Max — — 0.1
IOL = 50 µA
4.5 — — 0.55
IOL = 12 mA
Input current
IIN
0 to 5.5
—
—
±1
µA VIN = 5.5 V or GND
Input current
Rext / Cext
IIN
5.5
—
—
±2.5
µA VIN = VCC or GND
Quiescent
supply current
ICC
5.5
— — 10 µA VIN = VCC or GND,
IO = 0
ICC–T 5.5
— — 1.5 mA One input VIN=3.4V,
other input VCC or
GND
Active state
supply current
∆ICC
Output leakage
current
IOFF
4.5
5.5
0
— — 650 µA VIN = VCC or GND
— — 975
Rext / Cext =
0.5VCC
——5
µA VIN or VO = 0 to 5.5 V
Input capacitance CIN
5.0
— 3.0 — pF VIN = VCC or GND
Note: For conditions shown as Min or Max, use the appropriate values under recommended operating
conditions.
Rev.2.00, Apr.18.2003, page 5 of 14
5 Page 
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HD74LV2GT123A
Application Data
10000.0
1000.0
100.0
10.0
1.0
0.1
10 2
Vcc = 5.0 V
Rext
1 kΩ
10 kΩ
100 kΩ
1 MΩ
10 3 10 4 10 5
Timing capacitance Cext (pF)
10 6
10 7
Rev.2.00, Apr.18.2003, page 11 of 14
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet HD74LV2GT123A.PDF ] | |
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