PCA9575PW2,118 NXP Semiconductors, PCA9575PW2,118 Datasheet - Page 11

• Manufacturer Part Number: PCA9575PW2,118
• Description: IC I2C/SMBUS 16BIT GPIO 28-TSSOP
• Manufacturer: NXP Semiconductors
• Series: -r

Specifications of PCA9575PW2,118

• Interface: I²C, SMBus
• Number Of I /o: 16
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 1.1 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Includes: POR
• Description/function: 16-bit I2C-bus and SMBus
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.1 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935286414118

NXP Semiconductors
PCA9575_3
Product data sheet
7.6.2 Register 1 - Input port 1 register
7.6.3 Register 2 - Polarity inversion port 0 register
This register is read-only. It reflects the incoming logic levels of the pins, regardless of
whether the pin is defined as an input or an output by the Configuration register. Writes to
this register will be acknowledged but will have no effect.
The default ‘X’ is determined by the externally applied logic level.
Table 5.
This register allows the user to invert the polarity of the Input port register data. If a bit in
this register is set (written with ‘1’), the corresponding Input port data is inverted. If a bit in
this register is cleared (written with a ‘0’), the Input port data polarity is retained.
Table 6.
Legend: * default value.
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
Symbol
N0.7
N0.6
N0.5
N0.4
N0.3
N0.2
N0.1
N0.0
Symbol
IO1.7
IO1.6
IO1.5
IO1.4
IO1.3
IO1.2
IO1.1
IO1.0
Register 1 - Input port 1 register (address 01h) bit description
Register 2 - Polarity Inversion port 0 register (address 02h) bit description
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Access
read only
read only
read only
read only
read only
read only
read only
read only
Rev. 03 — 9 November 2009
16-bit I
Value
0*
0*
0*
0*
0*
0*
0*
0*
2
Value
X
X
X
X
X
X
X
X
C-bus and SMBus, level translating, low voltage GPIO
Description
inverts polarity of Input port 0 register data
0 = Input port 0 register data retained (default value)
1 = Input port 0 register data inverted
Description
determined by externally applied logic level
PCA9575
© NXP B.V. 2009. All rights reserved.
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