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MC74HC03A Datasheet(PDF) 5 Page - ON Semiconductor

Part No. MC74HC03A
Description  Quad 2−Input NAND Gate with Open−Drain Outputs High−Performance Silicon−Gate CMOS
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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MC74HC03A Datasheet(HTML) 5 Page - ON Semiconductor

   
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MC74HC03A
http://onsemi.com
5
Figure 1. Switching Waveforms
CL*
*Includes all probe and jig capacitance
TEST
POINT
DEVICE
UNDER
TEST
OUTPUT
Figure 2. Test Circuit
1kW
Rpd
VCC
INPUT A
90%
50%
10%
tf
tr
GND
VCC
OUTPUT Y
tPZL
tTHL
HIGH
IMPEDANCE
VOL
10%
tPLZ
90%
50%
10%
VO, OUTPUT VOLTAGE (VOLTS)
012345
0
5
10
15
20
25
Figure 3. Open−Drain Output Characteristics
A1
B1
A2
B2
An
Bn
1/4
HC03
1/4
HC03
1/4
HC03
Y1
Y2
Yn
TYPICAL
T=25°C
T=25°C
T=85°C
T=125°C
EXPECTED MINIMUM*
VCC=5V
*The expected minimum curves are not guarantees, but are design aids.
VCC
PULLUP
RESISTOR
OUTPUT
OUTPUT = Y1 • Y2 • . . . • Yn
= A1B1 • A2B2 • . . . • AnBn
Figure 4. Wired AND
LED1
1/4
HC03
LED2
LED
ENABLE
VCC
+
VR
+
VF
1/4
HC03
VCC
DESIGN EXAMPLE
CONDITIONS: ID^10mA
TYPICAL CURVE, at ID=10mA,
VDS^0.4V
NR +
VCC * VF * VO
ID
+ 5V * 1.7V * 0.4V
10mA
USE R = 270W
+ 290W
Figure 5. LED Driver With Blanking


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