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Name: PCA9555PWE4
Brand: Texas Instruments
SKU: PCA9555PWE4
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 PCA9555PWE4

Part No.:: PCA9555PWE4

Manufacturer:: Texas Instruments

Package:: 24-TSSOP (0.173, 4.40mm Width)

Datasheet:: PCA9555PWE4.pdf

Description:: IC I/O EXPANDER I2C 16B 24TSSOP

In Stock:: 2462

Quantity:: Add To Cart

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PCA9555PWE4 Specifications

Package/Case:
24-TSSOP (0.173, 4.40mm Width)
Packaging:
Bulk
Series:
-
ProductStatus:
Obsolete
NumberofI/O:
16
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

PCA9555PWE4 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PCA9555PWE4 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 PCA9555PWE4 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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PCA9555PWE4 information

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PCA9555PWE4 Typical application Circuitry

PCA9555PWE4

The PCA9555PWE4 is a 16-bit I/O expander designed for the I2C-bus and SMBus interfaces. It is primarily used to augment the number of I/O ports in microcontroller-based systems.

PCA9555PWE4 Application Scenarios:

1. Embedded System Expansion: Utilized in embedded systems to increase I/O port availability, especially in compact devices.

2. Industrial Automation: Ideal for controlling various sensors and actuators in industrial automation setups.

PCA9555PWE4 Key Features and Parameters:

1. 16-Bit I/O Ports: Provides significant expansion with 16 additional I/O ports.

2. I2C/SMBus Compatibility: Ensures seamless communication with I2C and SMBus protocols.

3. Configurable Port Direction: Each port can be independently set as input or output.

4. Low Power Consumption: Suitable for power-sensitive applications.

5. Flexible Operating Voltage: Supports a wide range of system voltages for versatile use.

Circuit Connection Example: Smart Home System

Overview: Deploying PCA9555PWE4 in a smart home system to manage lighting and sensors.

1. Connection to Power Supply:

- VCC (pin 24) should be connected to the smart home system's power supply, maintaining compatibility with the chip's voltage range.

2. Integrating with I2C Bus:

- SDA (pin 23) and SCL (pin 22) need to be linked to the corresponding SDA and SCL lines of the smart home system's I2C bus.

3. Connecting Smart Devices:

- I/O Ports (P00 to P07 and P10 to P17) for interfacing with smart lights, sensors, or switches. Configure each port based on the connected device's role.

4. I2C Address Setting:

- Address Pins (A0, A1, and A2) are crucial for assigning a unique I2C address to the PCA9555PWE4, facilitating proper identification and communication.

Design Considerations:

1. Ensure Voltage Compatibility: Match VCC with the power levels of both the smart home system and connected devices.

2. Configure I2C Addressing Accurately: Set the address pins to avoid bus conflicts and enhance communication efficiency.

3. Program Ports Accordingly: Define each port as input or output in software, tailored to the requirements of the connected smart devices.

4. Consider Circuit Protection: Implement appropriate protection mechanisms, especially for ports connected to actuators or high-load devices.

In summary, the PCA9555PWE4 is a valuable component in systems needing additional I/O ports, like smart home systems. Its 16-bit I/O expansion, compatibility with I2C/SMBus protocols, ability to configure port direction, low power consumption, and flexible voltage operation make it highly suitable for such applications. Careful planning in terms of voltage compatibility, I2C addressing, port programming, and protective measures is crucial for optimal circuit design and system integration.

PCA9555PWE4 FAQ

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6. What is the process for return or replacement of PCA9555PWE4?

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 PCA9555PWE4 we delivered, we will accept the replacement or return of the PCA9555PWE4 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 PCA9555PWE4.

(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