74HC2G17 Datasheet, PDF (10/18 Pages) NXP Semiconductors – Dual non-inverting Schmitt trigger

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
V_T+
positive-going
threshold voltage
V_T−
negative-going
threshold voltage
V_H
hysteresis voltage
see Figure 7 and Figure 8
V_CC = 4.5 V
V_CC = 5.5 V
see Figure 7 and Figure 8
V_CC = 4.5 V
V_CC = 5.5 V
V_T+ − V_T−; see Figure 7,
Figure 8 and Figure 10
V_CC = 4.5 V
V_CC = 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
V_O
V_T+
V_I
V_H
V_T−
V_H
V_T−
V_T+
Fig 7. Transfer characteristic
V_I
mnb154
V_O
mnb155
V_T+ and V_T- limits at 70 % and 20 %.
Fig 8. Definition of V_T+, V_T- and V_H
74HC_HCT2G17_1
Product data sheet
Rev. 01 — 6 October 2006
© NXP B.V. 2006. All rights reserved.
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