pca9703 NXP Semiconductors, pca9703 Datasheet - Page 9

• Manufacturer Part Number: pca9703
• Description: 18 V Tolerant Spi 16-bit Gpi With Maskable Int
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCA9703_1
Product data sheet
7.4.1 V
A minimum LOW threshold of 2.5 V is guaranteed for the logical switching points for the
inputs. See
The V
that if the user applies 2.5 V or less to the input (with V
passes this threshold, they will always see a LOW.
The V
or more to the input (with V
always see a HIGH.
Hysteresis minimum is specified as 180 mV at V
be at least 180 mV of difference between the LOW threshold and HIGH threshold to help
prevent oscillations and handle higher noise.
Fig 5.
IL
0.55V
0.8V
, V
IL
IH
DD
DD
IH
is specified as a maximum of 0.55 × V
is specified as a minimum of 0.8 × V
and switching points
V
Logic level thresholds
0 V
DD
Figure 5
V
I
for details.
Rev. 01 — 23 February 2010
DD
= 4.5 V), or as the voltage passes this threshold, they will
HIGH
LOW
18 V tolerant SPI 16-bit GPI with maskable INT
V
V
IH
IL
DD
DD
. This means that if the user applies 3.6 V
DD
and is 2.5 V at 4.5 V V
= 4.5 V. This means there will always
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= 4.5 V), or as the voltage
002aae101
possible ground shift
PCA9703
© NXP B.V. 2010. All rights reserved.
DD
hysteresis
minimum = 0.04V
. This means
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