9397 750 14592 © Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet Rev. 03 — 15 February 2005 9 of 16
Philips Semiconductors
74ALVC14
Hex inverting Schmitt trigger
[1] All typical values are measured at T
amb
= 25 °C.
[2] The typical transfer characteristic is displayed in Figure 9.
14. Waveforms transfer characteristics
V
H
hysteresis (V
T+
− V
T−
)V
CC
= 1.65 V 0.25 0.34 0.62 V
V
CC
= 1.95 V 0.25 0.36 0.62 V
V
CC
= 2.3 V 0.3 0.36 1.0 V
V
CC
= 2.7 V 0.3 0.38 1.1 V
V
CC
= 3.0 V
[2]
0.3 0.37 1.2 V
V
CC
= 3.6 V 0.3 0.40 1.2 V
Table 11: Transfer characteristics
…continued
The V
IH
and V
IL
from the family static characteristics are superseded by the V
T+
and V
T
−
.
Voltages are referenced to GND (ground = 0 V); see
Figure 8.
Symbol Parameter Conditions Min Typ Max Unit
V
T−
at 20 % and V
T+
at 70 %
Fig 8. Definition of V
T+
, V
T−
and V
H
V
CC
= 3.0 V.
Fig 9. Typical transfer characteristic
mna207
V
O
V
I
V
H
V
T+
V
T−
mna208
V
O
V
I
V
H
V
T+
V
T−
0 0.6 1.2 3
5
4
0
1
2
3
mna582
1.8 2.4
V
I
(V)
I
CC
(mA)
