pca9575 NXP Semiconductors, pca9575 Datasheet - Page 5
pca9575
Manufacturer Part Number
pca9575
Description
16-bit I2c-bus And Smbus, Level Translating, Low Voltage Gpio With Reset And Interrupt
Manufacturer
NXP Semiconductors
Datasheet
1.PCA9575.pdf
(37 pages)
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NXP Semiconductors
PCA9575_1
Product data sheet
Fig 2.
Simplified schematic of the I/Os (P0_0 to P0_7, P1_0 to P1_7)
configuration
write polarity
shift register
shift register
shift register
write pulse
read pulse
data from
data from
data from
pulse
pulse
write
PULL-UP/PULL-DOWN
configuration
register
D
CK
FF
BUS-HOLD
CONTROL
Q
Q
AND
output port
register
D
CK
FF
Q
V
Rev. 01 — 2 October 2008
DD(IO)
16-bit I
100 k
input port
register
polarity
inversion
register
D
CK
D
CK
2
FF
FF
C-bus and SMBus, level translating, low voltage GPIO
Q
Q
Q1
Q2
INTERRUPT
ESD
protection
diode
MASK
PCA9575
output port
register data
V
P0_0 to P0_7
P1_0 to P1_7
V
input port
register data
to INT
polarity
inversion
register data
© NXP B.V. 2008. All rights reserved.
DD(IO)
SS
002aad566
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