PCA9575HF NXP [NXP Semiconductors], PCA9575HF Datasheet - Page 5

• Manufacturer Part Number: PCA9575HF
• Description: 16-bit I2C-bus and SMBus, level translating, low voltage GPIO with reset and interrupt
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCA9575_3
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
Rev. 03 — 9 November 2009
V
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. 2009. All rights reserved.
DD(IO)
SS
002aad566
5 of 38