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MC74HC14A_14 Datasheet, PDF (4/7 Pages) ON Semiconductor – Hex Schmitt-Trigger Inverter
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MC74HC14A
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INPUT A
90%
50%
10%
tPLH
OUTPUT Y
90%
50%
10%
tTLH
VCC
GND
tPHL
tTHL
Figure 1. Switching Waveforms
DEVICE
UNDER
TEST
TEST
POINT
OUTPUT
CL*
*Includes all probe and jig capacitance
Figure 2. Test Circuit
4
3
(VT+)
VHtyp
2
(VT-)
1
2
3
4
5
6
VCC, POWER SUPPLY VOLTAGE (VOLTS)
VHtyp = (VT+ typ) - (VT- typ)
Figure 3. Typical Input Threshold, VT+, VT− versus Power Supply Voltage
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