MC74LCX14 Datasheet, PDF (5/8 Pages) ON Semiconductor – Low Voltage CMOS Hex Schmitt Inverter With 5 V-Tolerant Inputs

MC74LCX14
4
3
2
(V_T+)
V_Htyp
(V_T−)
1
2
2.5
3
3.5 3.6
V_CC, POWER SUPPLY VOLTAGE (VOLTS)
V_Htyp = (V_T+ typ) − (V_T− typ)
Figure 5. Typical Input Threshold, V_T+, V_T− versus Power Supply Voltage
(a) A Schmitt−Trigger Squares Up Inputs With Slow Rise and Fall Times
(b) A Schmitt−Trigger Offers Maximum Noise Immunity
V_H
V_in
V_CC
V_T+
V_T−
V_H
V_in
V_CC
V_T+
V_T−
GND
GND
V_OH
V_OH
V_out
V_out
V_OL
V_OL
Figure 6. Typical Schmitt−Trigger Applications
INPUT
Figure 7. Input Equivalent Circuit
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5