NXP Semiconductors
74LVC14A
Hex inverting Schmitt trigger with 5 V tolerant input
Table 7.
Dynamic characteristics
…continued
Voltages are referenced to GND (ground = 0 V). For test circuit see
Figure 7.
Symbol Parameter
C
PD
power dissipation
capacitance
Conditions
per buffer; V
I
= GND to V
CC
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 3.0 V to 3.6 V
[1]
[2]
[3]
[4]
40 C
to +85
C
Min
-
-
-
Typ
[1]
9.0
12.5
15.6
Max
-
-
-
40 C
to +125
C
Unit
Min
-
-
-
Max
-
-
-
pF
pF
pF
Typical values are measured at T
amb
= 25
C
and V
CC
= 1.2 V, 1.8 V, 2.5 V, 2.7 V, and 3.3 V respectively.
t
pd
is the same as t
PLH
and t
PHL
.
Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
C
PD
is used to determine the dynamic power dissipation (P
D
in
W).
P
D
= C
PD
V
CC2
f
i
N +
(C
L
V
CC2
f
o
) where:
f
i
= input frequency in MHz; f
o
= output frequency in MHz
C
L
= output load capacitance in pF
V
CC
= supply voltage in Volts
N = number of inputs switching
(C
L
V
CC2
f
o
) = sum of the outputs.
12. Waveforms
V
I
nA input
GND
t
PHL
V
OH
nY output
V
OL
V
M
V
M
mna344
V
M
V
M
t
PLH
V
M
= 1.5 V at V
CC
2.7 V
V
M
= 0.5
V
CC
at V
CC
< 2.7 V.
V
OL
and V
OH
are typical output voltage levels that occur with the output load.
Fig 6.
Propagation delay input (nA) to output (nY)
74LVC14A
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© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5 — 23 December 2011
6 of 18
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