Datasheet

74LV14 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 6 — 12 December 2011 7 of 19
NXP Semiconductors
74LV14
Hex inverting Schmitt trigger
13. Transfer characteristics
Table 8. Measurement points
Supply voltage Input Output
V
CC
V
M
V
M
< 2.7 V 0.5V
CC
0.5V
CC
2.7 V to 3.6 V 1.5 V 1.5 V
 4.5 V 0.5V
CC
0.5V
CC
Test data is given in Table 9.
Definitions test circuit:
R
T
= Termination resistance should be equal to output impedance Z
o
of the pulse generator.
R
L
= Load resistance.
C
L
= Load capacitance including jig and probe capacitance.
Fig 7. Load circuit for switching times
V
CC
V
I
V
O
001aaa663
DUT
C
L
50 pF
R
T
R
L
1 kΩ
PULSE
GENERATOR
Table 9. Test data
Supply voltage Input
V
CC
V
I
t
r
, t
f
< 2.7 V V
CC
 2.5 ns
2.7 V to 3.6 V 2.7 V  2.5 ns
 4.5 V V
CC
 2.5 ns
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 T
amb
= 40 C
to +85 C
T
amb
= 40 C
to +125 C
Unit
Min Typ
[1]
Max Min Max
V
T+
positive-going
threshold voltage
V
CC
= 1.2 V - 0.70 - - - V
V
CC
= 2.0 V 0.8 1.10 1.4 0.8 1.4 V
V
CC
= 2.7 V 1.0 1.45 2.0 1.0 2.0 V
V
CC
= 3.0 V 1.2 1.60 2.2 1.2 2.2 V
V
CC
= 3.6 V 1.5 1.95 2.4 1.5 2.4 V
V
CC
= 4.5 V 1.7 2.50 3.15 1.7 3.15 V
V
CC
= 5.5 V 2.1 3.00 3.85 2.1 3.85 V