MC74HC03A 데이터 시트보기 (PDF) - ON Semiconductor
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MC74HC03A Datasheet PDF : 9 Pages
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INPUT A
OUTPUT Y
MC74HC03A
tr
tf
90%
50%
10%
tPZL tPLZ
90%
50%
10%
10%
tTHL
Figure 1. Switching Waveforms
VCC
GND
HIGH
IMPEDANCE
VOL
VCC
DEVICE
UNDER
TEST
1kW
OUTPUT
Rpd
TEST
POINT
CL*
*Includes all probe and jig capacitance
Figure 2. Test Circuit
25
TYPICAL
T=25°C
20
VCC=5V
T=25°C
15
T=85°C
10
T=125°C
EXPECTED MINIMUM*
5
0
0
1
2
3
4
5
VO, OUTPUT VOLTAGE (VOLTS)
*The expected minimum curves are not guarantees, but are design aids.
Figure 3. Open−Drain Output Characteristics
VCC
A1
1/4
Y1
B1
HC03
A2
1/4
Y2
B2
HC03
PULLUP
RESISTOR
OUTPUT
An
1/4
Yn
Bn
HC03
OUTPUT = Y1 • Y2 • . . . • Yn
= A1B1 • A2B2 • . . . • AnBn
Figure 4. Wired AND
LED1
LED2
LED
ENABLE
VCC
+
VR
−
+
VF
−
1/4
HC03
VCC
1/4
HC03
DESIGN EXAMPLE
CONDITIONS: ID^10mA
TYPICAL CURVE, at ID=10mA,
VDS^0.4V
NR
+
VCC
* VF
ID
*
VO
+
5V
*
1.7V *
10mA
0.4V
+ 290W
USE R = 270W
Figure 5. LED Driver With Blanking
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