What is the Additional Feature ?

Name: PCA9557PWT
Brand: Texas Instruments
SKU: PCA9557PWT
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 PCA9557PWT

Part No.:: PCA9557PWT

Manufacturer:: Texas Instruments

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

Datasheet:: PCA9557PWT.pdf

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

In Stock:: 58500

Quantity:: Add To Cart

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PCA9557PWT Specifications

Package/Case:
16-TSSOP (0.173, 4.40mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®,Bulk
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

PCA9557PWT this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PCA9557PWT 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 PCA9557PWT 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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PCA9557PWT information

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PCA9557PWT Typical application Circuitry

PCA9557PWT

The PCA9557PWT is an 8-bit I2C-bus and SMBus I/O expander. It's designed to provide additional input/output (I/O) ports in systems where I/O availability is limited, particularly in microcontroller-based applications.

PCA9557PWT Application Scenarios:

1. Consumer Electronics: Used in consumer electronics, like gaming consoles or home entertainment systems, to manage multiple inputs and outputs.

2. Industrial Controls: Ideal for expanding I/O in industrial control systems where additional sensors or actuators need to be managed.

Crucial attributes and parameters:

1. 8-Bit I/O Expansion: Offers eight more ports for I/O.

2. I2C/SMBus Interface: Consists of standard communication protocols for SMBus and I2C.

3. Configurable Ports: You can assign an input or output port to each port separately.

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

5. Flexible Voltage Range: Operates over a broad voltage range to accommodate different system designs.

Circuit Connection Example: Smart Home System

Overview: Integrating PCA9557PWT in a smart home system to control lighting and temperature sensors.

1. Power Supply Integration: VCC (pin 16) needs to be connected to the smart home system's power supply, within the chip's operating voltage range.

2. I2C Bus Connectivity: The SDA (pin 15) and SCL (pin 14) lines of the smart home system's I2C bus should be connected to the corresponding SDA and SCL lines.

3. Peripheral Devices Connection:I/O Ports (P0 to P7 on pins 1-7 and 9) for interfacing with lighting controls and temperature sensors. Configure each port according to the connected device's function.

4. I2C Address Configuration: Address Pins (A0, A1, and A2 on pins 10-12) are critical for setting the I2C address of PCA9557PWT, ensuring accurate bus communication.

Design Considerations:

1. Voltage Compatibility: Ensure VCC is compatible with both the smart home system and the peripherals.

2. I2C Addressing Accuracy: Correctly configure the address pins to avoid conflicts on the I2C bus.

3. Port Configuration: Set each port as input or output based on the needs of the connected devices.

4. Integration and Reliability: Ensure seamless integration of PCA9557PWT into the smart home system, including thorough testing for connectivity and functional reliability.

In summary, the PCA9557PWT is an effective I/O expander for applications like smart home systems. Its 8-bit I/O expansion, I2C/SMBus compatibility, configurable port direction, low power consumption, and wide voltage range make it a suitable choice for such applications. When designing circuits with this chip, considerations like voltage compatibility, I2C bus addressing, port setup, and system integration testing are crucial for optimal performance.

PCA9557PWT FAQ

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6. What is the process for return or replacement of PCA9557PWT?

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 PCA9557PWT we delivered, we will accept the replacement or return of the PCA9557PWT 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 PCA9557PWT.

(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