74HC14D Просмотр технического описания (PDF) - Nexperia B.V. All rights reserved
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производитель
74HC14D Datasheet PDF : 18 Pages
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Nexperia
VI 90 %
negative
pulse
GND
VI
positive
pulse
GND 10 %
VM
10 %
tf
tr
90 %
VM
VI
G
RT
tW
tW
VCC
DUT
VM
tr
tf
VM
VO
CL
74HC14; 74HCT14
Hex inverting Schmitt trigger
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.
Test circuit for measuring switching times
Table 9. Test data
Type
74HC14
74HCT14
Input
VI
VCC
3.0 V
tr, tf
6.0 ns
6.0 ns
Load
CL
15 pF, 50 pF
15 pF, 50 pF
Test
tPLH, tPHL
tPLH, tPHL
12. Transfer characteristics
Table 10. Transfer characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V); see Fig. 8 and Fig. 9.
Symbol Parameter
Conditions
Tamb = 25 °C
Tamb = -40 °C Tamb = -40 °C Unit
to +85 °C
to +125 °C
Min Typ Max Min Max Min Max
74HC14
VT+
positive-going
threshold voltage
VT-
negative-going
threshold voltage
VH
hysteresis voltage
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
0.7 1.18 1.5 0.7 1.5 0.7 1.5 V
1.7 2.38 3.15 1.7 3.15 1.7 3.15 V
2.1 3.14 4.2 2.1 4.2 2.1 4.2 V
0.3 0.52 0.9 0.3 0.9 0.3 0.9 V
0.9 1.4 2.0 0.9 2.0 0.9 2.0 V
1.2 1.89 2.6 1.2 2.6 1.2 2.6 V
0.2 0.66 1.0 0.2 1.0 0.2 1.0 V
0.4 0.98 1.4 0.4 1.4 0.4 1.4 V
0.6 1.25 1.6 0.6 1.6 0.6 1.6 V
74HC_HCT14
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 22 May 2020
© Nexperia B.V. 2020. All rights reserved
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