What is the Additional Feature ?

Name: PCA9557PW,112
Brand: NXP USA Inc.
SKU: PCA9557PW,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. PCA9557PW,112

Part No.:: PCA9557PW,112

Manufacturer:: NXP USA Inc.

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

Datasheet:: PCA9557PW,112.pdf

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

In Stock:: 3923

Quantity:: Add To Cart

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PCA9557PW,112 Specifications

Package/Case:
16-TSSOP (0.173, 4.40mm Width)
Packaging:
Tube,Tube
Series:
-
ProductStatus:
Obsolete
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

PCA9557PW,112 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PCA9557PW,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 PCA9557PW,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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PCA9557PW,112 information

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PCA9557PW,112 Typical application Circuitry

PCA9557PW,112

The PCA9557PW,112 is an 8-bit I2C-bus and SMBus I/O expander. This chip is designed to extend the number of I/O ports available in a microcontroller or processor-based system, particularly useful in scenarios where additional ports are required but are not available on the main controller.

Application Scenarios:

1. Smart Home Devices: Ideal for expanding I/O capabilities in smart home devices like thermostats, lighting systems, and security sensors.

2. Industrial Control Systems: Useful in industrial environments for interfacing with multiple sensors or control mechanisms.

Crucial attributes and parameters:

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

2. Interface compatibility with I2C and SMBus: guarantees interoperability with these protocols.

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

4. Low Power Consumption: Ideal for energy-efficient designs.

5. Wide Operating Voltage Range: Supports a broad range of voltage levels for diverse system requirements.

Circuit Connection Example: Smart Thermostat System

Overview: Implementing PCA9557PW,112 in a smart thermostat to manage various sensors and controls.

1. Power Supply Connection: The thermostat's power supply should be connected to pin 16 on the VCC, in accordance with the voltage range mentioned for PCA9557PW,112.

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

3. Connecting Sensors and Controls: I/O Ports (P0 to P7 on pins 1-7 and 9) for interfacing with environmental sensors, buttons, or display elements. Configure each port based on the requirement of the connected device.

4. Setting the I2C Address: Address Pins (A0, A1, and A2 on pins 10-12) are crucial for setting the I2C address of PCA9557PW,112, ensuring accurate communication on the bus.

Design Considerations:

1. Ensure Voltage Compatibility: The VCC should match the power levels of the thermostat system and connected peripherals.

2. Correct I2C Address Configuration: Properly set the address pins to avoid bus conflicts.

3. Port Functionality Setup: Configure each port appropriately as either input or output, matching the functionality of connected devices.

4. Reliable System Integration: Ensure that PCA9557PW,112 is seamlessly integrated into the thermostat system, including comprehensive testing for operational reliability.

In summary, the PCA9557PW,112 is highly effective for applications requiring additional I/O ports, like in smart thermostat systems. Its 8-bit I/O expansion, compatibility with I2C/SMBus protocols, configurable port direction, energy efficiency, and adaptable voltage operation make it a suitable choice. When designing circuits with this chip, it's important to consider aspects like voltage compatibility, I2C bus addressing, port setup, and ensuring robust integration into the overall system.

PCA9557PW,112 FAQ

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6. What is the process for return or replacement of PCA9557PW,112?

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 PCA9557PW,112 we delivered, we will accept the replacement or return of the PCA9557PW,112 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 PCA9557PW,112.

(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