MC74HC14A Datasheet, PDF (5/8 Pages) ON Semiconductor – Hex Schmitt-Trigger Inverter

MC74HC14A
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
A
(a) A Schmitt–Trigger Squares Up Inputs With Slow Rise and Fall Times
VCC
VH
Vin
VT+
VT–
GND
VOH
Vout
VOL
Y
(b) A Schmitt–Trigger Offers Maximum Noise Immunity
VCC
VH
Vin
VT+
VT–
GND
VOH
Vout
VOL
Figure 4. Typical Schmitt–Trigger Applications
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