fxlp34 Fairchild Semiconductor, fxlp34 Datasheet - Page 7

• Manufacturer Part Number: fxlp34
• Description: Single Bit Uni-directional Translator
• Manufacturer: Fairchild Semiconductor

FXLP34 Rev. 1.0.3
Translator Power Up Sequence Recommendations
To insure that the system does not experience unneces-
sary I
ing power up, the following guidelines should be adhered
to. This device is designed with the Output pin(s) is sup-
plied by V
Therefore the first recommendation is to begin by power-
ing up the input side of the device, V
should be ramped with or ahead of V
This will guard against bus contentions and oscillations
AC Loading and Waveforms
Symbol
CC
V
V
mo
mi
current draw, bus contention, or oscillations dur-
CC
and the Input pin(s) supplied by V
3.3V ±0.3V
Figure 2. Waveform for Inverting and Non-Inverting Functions
1.5V
1.5V
Input
Output
10%
2.5V ±0.2V
CC1
V
CC1
CC1
V
V
. The Input pin(s)
CC1
CC
Input
Input
or held LOW.
V
/ 2
t
/ 2
V
PLH
Figure 1. AC Test Circuit
mo
mi
90%
t
r
= 3 ns
1.8V ±0.15V
CC1
V
t
CC
W
V
V
.
CC1
CC
90%
7
50%
/ 2
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as all Inputs and the Input V
same time. The Output V
voltage level that the device will be used to translate to.
The Output pin(s) will then translate to logic levels dic-
tated by the Output V
Upon completion of these steps the device can then be
configured for the users desired operation. Following
these steps will help to prevent possible damage to the
translator device as well as other system components.
V
C
CC
t
L
PHL
pF
1.5V ±0.10V
10%
t
f
V
V
= 3 ns
CC1
CC
V
mo
R
/ 2
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L
GND
V
V
V
CC
CC
OL
CC1
levels.
1.2V ±0.10V
CC
V
V
can then be powered to the
CC1
CC1
CC
/ 2
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will be powered at the
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V
V
1.0V
CC1
CC
/ 2
/ 2