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74HCT14BQ Arkusz danych(PDF) 8 Page - NXP Semiconductors

Numer części 74HCT14BQ
Szczegółowy opis  Hex inverting Schmitt trigger
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Producent  NXP [NXP Semiconductors]
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Logo NXP - NXP Semiconductors

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74HC_HCT14
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 6 — 19 September 2012
8 of 21
NXP Semiconductors
74HC14; 74HCT14
Hex inverting Schmitt trigger
13. Transfer characteristics
14. Transfer characteristics waveforms
Table 9.
Test data
Type
Input
Load
Test
VI
tr, tf
CL
74HC14
VCC
6.0 ns
15 pF, 50 pF
tPLH, tPHL
74HCT14
3.0 V
6.0 ns
15 pF, 50 pF
tPLH, tPHL
Table 10.
Transfer characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V); see Figure 8 and Figure 9.
Symbol Parameter
Conditions
Tamb = 25 C
Tamb = 40 C
to +85
C
Tamb = 40 C
to +125
C
Unit
Min
Typ
Max
Min
Max
Min
Max
74HC14
VT+
positive-going
threshold
voltage
VCC = 2.0 V
0.7
1.18
1.5
0.7
1.5
0.7
1.5
V
VCC = 4.5 V
1.7
2.38
3.15
1.7
3.15
1.7
3.15
V
VCC = 6.0 V
2.1
3.14
4.2
2.1
4.2
2.1
4.2
V
VT
negative-going
threshold
voltage
VCC = 2.0 V
0.3
0.52
0.9
0.3
0.9
0.3
0.9
V
VCC = 4.5 V
0.9
1.4
2.0
0.9
2.0
0.9
2.0
V
VCC = 6.0 V
1.2
1.89
2.6
1.2
2.6
1.2
2.6
V
VH
hysteresis
voltage
VCC = 2.0 V
0.2
0.66
1.0
0.2
1.0
0.2
1.0
V
VCC = 4.5 V
0.4
0.98
1.4
0.4
1.4
0.4
1.4
V
VCC = 6.0 V
0.6
1.25
1.6
0.6
1.6
0.6
1.6
V
74HCT14
VT+
positive-going
threshold
voltage
VCC = 4.5 V
1.2
1.41
1.9
1.2
1.9
1.2
1.9
V
VCC = 5.5 V
1.4
1.59
2.1
1.4
2.1
1.4
2.1
V
VT
negative-going
threshold
voltage
VCC = 4.5 V
0.5
0.85
1.2
0.5
1.2
0.5
1.2
V
VCC = 5.5 V
0.6
0.99
1.4
0.6
1.4
0.6
1.4
V
VH
hysteresis
voltage
VCC = 4.5 V
0.4
0.56
-
0.4
-
0.4
-
V
VCC = 5.5 V
0.4
0.6
-
0.4
-
0.4
-
V
Fig 8.
Transfer characteristics
Fig 9.
Transfer characteristics definitions
mna207
VO
VI
VH
VT+
VT−
mna208
VO
VI
VH
VT+
VT−


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