74HC2G17 データシートの表示（PDF） - Philips Electronics
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74HC2G17 Datasheet PDF : 18 Pages
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NXP Semiconductors
74HC2G17; 74HCT2G17
Dual non-inverting Schmitt trigger
Table 12. Transfer characteristics …continued
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 6.
Symbol Parameter
Conditions
25 °C
Min Typ Max
74HCT2G17
VT+
positive-going
threshold voltage
VT−
negative-going
threshold voltage
VH
hysteresis voltage
see Figure 7 and Figure 8
VCC = 4.5 V
VCC = 5.5 V
see Figure 7 and Figure 8
VCC = 4.5 V
VCC = 5.5 V
VT+ − VT−; see Figure 7,
Figure 8 and Figure 10
VCC = 4.5 V
VCC = 5.5 V
1.20 1.58 1.90
1.40 1.78 2.10
0.50 0.87 1.20
0.60 1.11 1.40
0.40 0.71 -
0.40 0.67 -
−40 °C to +125 °C Unit
Min Max
Max
(85 °C) (125 °C)
1.20 1.90
1.40 2.10
1.90 V
2.10 V
0.50 1.20
0.60 1.40
1.20 V
1.40 V
0.40
-
0.40
-
-V
-V
15. Waveforms transfer characteristics
VO
VT+
VI
VH
VT−
VH
VT−
VT+
Fig 7. Transfer characteristic
VI
mnb154
VO
mnb155
VT+ and VT- limits at 70 % and 20 %.
Fig 8. Definition of VT+, VT- and VH
74HC_HCT2G17_1
Product data sheet
Rev. 01 — 6 October 2006
© NXP B.V. 2006. All rights reserved.
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