MC74VHC132 Datasheet, PDF (4/6 Pages) Motorola, Inc – Quad 2-Input NAND Schmitt Trigger

MC74VHC132
A 50%
t_PLH
Y 50% VCC
V_CC
GND
t_PHL
Figure 3. Switching Waveforms
DEVICE
UNDER
TEST
OUTPUT
TEST POINT
C_L*
*Includes all probe and jig capacitance
Figure 4. Test Circuit
4
3
(V_T+)
V_Htyp
2
(V_T−)
1
2
3
4
5
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
V_CC
V_H
V_in
V_T+
V_T−
GND
(b) A Schmitt−Trigger Offers Maximum Noise Immunity
V_CC
V_H
V_in
V_T+
V_T−
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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