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Name: PCA9557PWR
Brand: Texas Instruments
SKU: PCA9557PWR
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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Texas Instruments PCA9557PWR

Part No.:: PCA9557PWR

Manufacturer:: Texas Instruments

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

Datasheet:: PCA9557PWR.pdf

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

In Stock:: 2000

Quantity:: Add To Cart

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PCA9557PWR Specifications

Package/Case:
16-TSSOP (0.173, 4.40mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
NumberofI/O:
8
Interface:
I²C, SMBus
InterruptOutput:
No
Features:
POR
OutputType:
Open Drain, Push-Pull
Current-OutputSource/Sink:
10mA, 25mA
ClockFrequency:
400 kHz
Voltage-Supply:
2.3V ~ 5.5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

PCA9557PWR this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PCA9557PWR 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 PCA9557PWR 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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PCA9557PWR information

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PCA9557PWR Typical application Circuitry

PCA9557PWR

The PCA9557PWR is an 8-bit I2C-bus and SMBus I/O expander. It's designed to provide additional input/output (I/O) ports in systems with limited I/O availability, especially beneficial in microcontroller-based applications.

Application Scenarios:

1. Smart Home Automation: Ideal for expanding the I/O capabilities in smart home devices, controlling various sensors and actuators.

2. Industrial Control Systems: Useful in industrial settings for managing multiple input and output devices, like sensors, switches, and displays.

Key Features and Parameters:

1. 8-Bit I/O Ports: Offers eight additional I/O ports.

2. I2C/SMBus Interface Compatibility: Enables integration with I2C and SMBus communication protocols.

3. Configurable Ports: Every port has the ability to be separately set as an output or input.

4. Low Power Consumption: Fits well with designs that use less energy.

5. Wide Voltage Range: Supports a variety of operating voltages for diverse applications.Circuit Connection Example: Smart Lighting Control System

Using PCA9557PWR in a smart lighting system allows you to control different types of lights.

1. Power source Connection: Within the voltage range of the PCA9557PWR, VCC (pin 16) should be connected to the power source of the smart lighting system.

2. I2C Bus Integration: The SDA (pin 15) and SCL (pin 14) lines of the lighting system's I2C bus must be linked to their respective SDA and SCL lines.

3. Light Fixture Interface: I/O Ports (P0 to P7 on pins 1-7 and 9) for interfacing with different light fixtures. Each port should be configured based on the operational requirements of the connected fixtures.

4. I2C Address Setting: Address Pins (A0, A1, and A2 on pins 10-12) are crucial for determining the I2C address of PCA9557PWR, ensuring accurate device communication.

Design Considerations:

1. Voltage Compatibility: Ensure that VCC aligns with the power levels of the smart lighting system.

2. Precise I2C Address Configuration: To prevent conflicts on the I2C bus, make sure the address pins are set appropriately.

3. Port Configuration: Define each port's function as input or output according to the connected light fixtures.

4. Reliable System Integration: Guarantee seamless integration of PCA9557PWR into the smart lighting system, including comprehensive testing for functionality and connectivity.

In conclusion, the PCA9557PWR is an effective solution for applications requiring additional I/O ports, like in smart lighting systems. Its 8-bit I/O expansion, I2C/SMBus compatibility, configurable port direction, energy efficiency, and adaptable voltage operation make it well-suited for such applications. Key aspects in circuit design include ensuring voltage compatibility, I2C bus addressing, port setup, and robust integration into the overall system.

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6. What is the process for return or replacement of PCA9557PWR?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the PCA9557PWR we delivered, we will accept the replacement or return of the PCA9557PWR only when all of the below conditions are fulfilled:

(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 PCA9557PWR.

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

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations