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74HCT14N View Datasheet(PDF) - NXP Semiconductors.

Part NameDescriptionManufacturer
74HCT14N Hex inverting Schmitt trigger NXP
NXP Semiconductors. NXP
74HCT14N Datasheet PDF : 21 Pages
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NXP Semiconductors
12. Waveforms
74HC14; 74HCT14
Hex inverting Schmitt trigger
VI
nA input
GND
VOH
nY output
VOL
VM
t PHL
VM
t THL
VM
VM
10 %
t PLH
90 %
t TLH
mna722
Fig 6.
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Input to output propagation delays
Table 8. Measurement points
Type
Input
VM
74HC14
0.5VCC
74HCT14
1.3 V
Output
VM
0.5VCC
1.3 V
VX
0.1VCC
0.1VCC
VY
0.9VCC
0.9VCC
VI 90 %
negative
pulse
GND
VI
positive
pulse
10 %
GND
VM
10 %
tf
tr
90 %
VM
VI
G
RT
tW
tW
VCC
DUT
VM
tr
tf
VM
VO
CL
001aah768
Fig 7.
Test data is given in Table 9.
Definitions test circuit:
RT = termination resistance should be equal to output impedance Zo of the pulse generator.
CL = load capacitance including jig and probe capacitance.
Load circuitry for measuring switching times
74HC_HCT14
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 19 September 2012
© NXP B.V. 2012. All rights reserved.
7 of 21
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