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Name: TCA9534PWR
Brand: Texas Instruments
SKU: TCA9534PWR
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 TCA9534PWR

Part No.:: TCA9534PWR

Manufacturer:: Texas Instruments

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

Datasheet:: TCA9534PWR.pdf

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

In Stock:: 3163

Quantity:: Add To Cart

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TCA9534PWR 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
InterruptOutput:
Yes
Features:
-
OutputType:
Push-Pull
Current-OutputSource/Sink:
-
ClockFrequency:
400 kHz
Voltage-Supply:
1.65V ~ 5.5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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TCA9534PWR information

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TCA9534PWR Typical application Circuitry

TCA9534PWR

TCA9534PWR is an integrated circuit chip that functions as an 8-bit I2C and SMBus low-power I/O expander. It is particularly useful in applications where additional I/Os are required for microcontrollers or microprocessors with limited GPIOs. The chip is commonly employed in various electronics, including mobile devices, consumer electronics, and industrial control systems. Let's explore its features and a detailed application scenario.

Key Features of TCA9534PWR

1. I2C Interface: Supports I2C communication, allowing easy integration with most microcontrollers.

2. 8-bit Configurable Ports: Offers 8 I/O ports that can be individually set as input or output.

3. Low Power Consumption: Its low power consumption design makes it appropriate for battery-powered devices.

4. Interrupt Output: Provides an interrupt output which can be configured to reflect changes in input states, aiding in efficient data management.

Application Scenario: Home Automation System

In a home automation system, TCA9534PWR can be used to expand the I/O capabilities of a central control microcontroller. Here's how it can be integrated:

1. I2C Connection: Connect the SDA (Serial Data Line) and SCL (Serial Clock Line) pins of TCA9534PWR to the corresponding I2C bus lines of the microcontroller. This connection is vital for data communication.

2. Power Supply Configuration: Ensure that TCA9534PWR receives a stable voltage supply (typically 1.65V to 5.5V). Proper voltage levels are crucial for reliable operation.

3. GPIO Expansion: Connect external devices like sensors, LEDs, or switches to the P0 to P7 pins (GPIO0 to GPIO7) of TCA9534PWR. This setup extends the microcontroller's I/O capabilities.

4. Address Pins Configuration: Set the A0, A1, and A2 address pins according to the desired I2C address for TCA9534PWR. This is important for correctly addressing the chip on the I2C bus, especially when multiple I2C devices are used.

5. Using the Interrupt Feature: Attach the TCA9534PWR's INT pin to a microcontroller interrupt input. This feature is useful for prompt notification of state changes in the I/O ports, reducing the need for constant polling.

6. Electromagnetic Compatibility (EMC): Incorporate EMC considerations in the PCB design to minimize interference, especially since home automation systems often interact with a variety of electronic devices.

In summary, integrating TCA9534PWR into a home automation system involves careful planning of I2C connections, power supply configuration, GPIO expansion, address pin settings, utilization of the interrupt feature, and EMC considerations. These aspects are essential to achieve an effective and efficient expansion of I/O capabilities in complex electronic systems.

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6. What is the process for return or replacement of TCA9534PWR?

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 TCA9534PWR we delivered, we will accept the replacement or return of the TCA9534PWR 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 TCA9534PWR.

(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