Datasheet
74LVC541A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 4 — 25 November 2011 7 of 17
NXP Semiconductors
74LVC541A
Octal buffer/line driver with 5 V tolerant inputs/outputs; 3-state
[1] Typical values are measured at T
amb
=25C and V
CC
= 1.2 V, 1.8 V, 2.5 V, 2.7 V, and 3.3 V respectively.
[2] t
pd
is the same as t
PLH
and t
PHL
.
t
en
is the same as t
PZL
and t
PZH
.
t
dis
is the same as t
PLZ
and t
PHZ
.
[3] Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
[4] C
PD
is used to determine the dynamic power dissipation (P
D
in W).
P
D
=C
PD
V
CC
2
f
i
N+(C
L
V
CC
2
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
CC
2
f
o
) = sum of the outputs.
11. AC waveforms
C
PD
power
dissipation
capacitance
per input; V
I
=GNDtoV
CC
[4]
V
CC
= 1.65 V to 1.95 V - 7.7 - - - pF
V
CC
= 2.3 V to 2.7 V - 11.3 - - - pF
V
CC
= 3.0 V to 3.6 V - 14.4 - - - pF
Table 7. Dynamic characteristics
…continued
Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 7.
Symbol Parameter Conditions 40 C to +85 C 40 C to +125 C Unit
Min Typ
[1]
Max Min Max
V
M
= 1.5 V at V
CC
2.7 V.
V
M
=0.5 V
CC
at V
CC
<2.7V.
V
OL
and V
OH
are typical output voltage levels that occur with the output load.
Fig 5. Input (An) to output (Yn) propagation delays
mna901
An input
Yn output
t
PHL
t
PLH
GND
V
I
V
M
V
M
V
OH
V
OL