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74F14 Datasheet, PDF (5/8 Pages) NXP Semiconductors – Hex inverter Schmitt trigger
Philips Semiconductors
Hex inverter Schmitt trigger
Product specification
74F14
AC WAVEFORMS
Dn
VM
VM
tPHL
tPLH
Qn
VM
VM
NOTE:
For all waveforms, VM = 1.5V.
SF00032
Waveform 1. Propagation delay for inverting outputs
TEST CIRCUIT AND WAVEFORMS
VIN
PULSE
GENERATOR
VCC
VOUT
D.U.T.
NEGATIVE
PULSE
90%
tw
VM
10%
tTHL (tf )
VM
10%
tTLH (tr )
90%
AMP (V)
0V
RT
CL RL
Test Circuit for Totem-Pole Outputs
POSITIVE
PULSE
10%
tTLH (tr )
90%
VM
tw
tTHL (tf )
90%
VM
AMP (V)
10%
0V
DEFINITIONS:
RL = Load resistor;
see AC ELECTRICAL CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance;
see AC ELECTRICAL CHARACTERISTICS for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
Input Pulse Definition
family
74F
INPUT PULSE REQUIREMENTS
amplitude VM rep. rate
tw
tTLH
3.0V 1.5V 1MHz 500ns 2.5ns
tTHL
2.5ns
SF00006
November 26, 1990
5