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Name: PCA9554APW,112
Brand: NXP USA Inc.
SKU: PCA9554APW,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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NXP USA Inc. PCA9554APW,112

Part No.:: PCA9554APW,112

Manufacturer:: NXP USA Inc.

Package:: 16-TSSOP (0.173, 4.40mm Width)

Datasheet:: PCA9554APW,112.pdf

Description:: IC I/O EXPANDER I2C 8B 16TSSOP

In Stock:: 3170

Quantity:: Add To Cart

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PCA9554APW,112 Specifications

Package/Case:
16-TSSOP (0.173, 4.40mm Width)
Packaging:
Tube,Tube
Series:
-
ProductStatus:
Obsolete
NumberofI/O:
8
Interface:
I²C, SMBus
InterruptOutput:
Yes
Features:
POR
OutputType:
Push-Pull
Current-OutputSource/Sink:
10mA, 25mA
ClockFrequency:
400 kHz
Voltage-Supply:
2.3V ~ 5.5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

PCA9554APW,112 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PCA9554APW,112 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for PCA9554APW,112 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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PCA9554APW,112 information

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PCA9554APW,112 Typical application Circuitry

PCA9554APW,112

The PCA9554APW,112 is an 8-bit I²C-bus and SMBus I/O expander with interrupt functionality, tailored for applications requiring additional I/Os without the need for increasing the microcontroller pin count.

Features of PCA9554APW,112

1. I/O Expansion: The PCA9554APW,112 enhances the system by adding 8 I/O ports, available for input or output configuration.

2. Interrupt Output: Includes an interrupt output, signaling the microcontroller upon changes in input states.

3. Communication Protocol: Equipped with an I²C-bus interface, facilitating seamless communication with most microcontrollers or processors.

4. Polarity Inversion: Input polarity inversion register is available to adapt the polarity of the input port data if necessary.

Application Scenario: Industrial Automation Control Panel

In an industrial automation control panel, the PCA9554APW,112 can be employed to interface with various switches, indicators, and sensors, thus expanding the I/O capacity of the primary control unit. Below is a detailed guide for setting up this in an industrial automation scenario:

Circuit Connection Details

1. Power Supply (VDD - Pin 16, VSS - Pin 8):

- Powering the Device: Connect a stable power source to VDD (Pin 16) for the PCA9554APW,112. Ground VSS (Pin 8) to establish a common reference for the system.

2. I/O Ports (P0-P7 - Pins 1-7, Pin 9):

- Connecting to Devices: Interface the control panel's switches, indicators, and sensors with the I/O ports (P0-P7). Configure these ports based on the specific requirements of the automation system.

3. I²C Bus Communication (SDA - Pin 15, SCL - Pin 14):

- Linking with Microcontroller: Attach SDA (Pin 15) and SCL (Pin 14) to the I²C data and clock lines on the microcontroller, establishing a communication channel between the PCA9554APW,112 and the microcontroller.

4. Interrupt Handling (INT - Pin 13):

- Managing Input Changes: Wire INT (Pin 13) to an interrupt pin on the microcontroller to receive immediate notification when any of the input states change.

5. Address Configuration (A0-A2 - Pins 10-12):

- Setting I²C Address: Set A0, A1, and A2 (Pins 10-12) to define the I²C address. This step is crucial when multiple devices share the same I²C bus, ensuring proper device addressing.

Design Considerations

When designing a circuit with the PCA9554APW,112, keep the following in mind:

1. I/O Pin Utilization: Confirm that the number of I/O pins required aligns with the 8-bit capacity of the PCA9554APW,112.

2. I²C Bus Configuration: Ensure correct addressing for the PCA9554APW,112, especially critical in systems with multiple devices on the same I²C bus.

3. Stable Power Delivery: Ensure the power supply is stable and clean, crucial for the reliable operation of the I/O expander.

4. Efficient Interrupt Strategy: Implement an effective interrupt handling strategy so the microcontroller can respond swiftly to state changes signaled by the PCA9554APW,112.

By meticulously incorporating these considerations and capitalizing on the functionalities and pin configurations of the PCA9554APW,112, it's possible to effectively integrate this I/O expander into complex applications like an industrial automation control panel. The PCA9554APW,112, with its I/O expansion capabilities and interrupt feature, stands as an exemplary component for augmenting the I/O capacity of a central microcontroller in sophisticated systems.

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6. What is the process for return or replacement of PCA9554APW,112?

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of PCA9554APW,112.

(3)The PartNo is unused and only in the original unpacked packaging.

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