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Name: PCA9534PWRG4
Brand: Texas Instruments
SKU: PCA9534PWRG4
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 PCA9534PWRG4

Part No.:: PCA9534PWRG4

Manufacturer:: Texas Instruments

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

Datasheet:: PCA9534PWRG4.pdf

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

In Stock:: 3404

Quantity:: Add To Cart

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PCA9534PWRG4 Specifications

Package/Case:
16-TSSOP (0.173, 4.40mm Width)
Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Discontinued at Mosen
NumberofI/O:
8
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

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PCA9534PWRG4 information

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PCA9534PWRG4 Typical application Circuitry

PCA9534PWRG4

The PCA9534PWRG4 is an 8-bit I2C-bus and SMBus low-power I/O expander. It is designed to provide additional input/output (I/O) ports for a microcontroller or processor, which is particularly useful when the number of available pins on the microcontroller is limited.

PCA9534PWRG4 Application Scenarios:

1. I/O Expansion in Microcontroller-Based Systems: Commonly used in embedded systems to increase the number of GPIOs for interfacing with switches, sensors, LEDs, or other peripherals.

2. Control Functions in Consumer Electronics: Often found in consumer electronics, such as smartphones and PCs, for controlling various functionalities.

PCA9534PWRG4 Key Features and Parameters:

1. 8-Bit I/O Expansion: Offers eight additional I/O ports that can be set as input or output.

2. I2C-Bus Interface: Compatible with I2C-bus and SMBus, enabling easy integration.

3. Low Power Consumption: Because of its energy-efficient design, it is appropriate for devices that run on batteries.

4. Programmable Polarity Inversion: Includes a feature for programmable polarity inversion on input ports.

Circuit Connection Example: Expanding GPIOs in an Embedded Device

Overview: Implementing PCA9534PWRG4 to expand the GPIO capabilities of a microcontroller in an embedded device.

1. Connecting to Power Supply: VCC (pin 16) should be connected to the microcontroller's power supply, typically ranging from 2.3V to 5.5V.

2. Establishing Ground Connection: GND (pin 8) needs to be linked to the system's ground.

3. Connecting to the I2C Bus: The microcontroller's I2C data and clock lines should be linked to pins 14 and 15, respectively, for SDA and SCL.

4. Configuring I/O Ports: P0 to P7 (pins 1-7 and 9-12) serve as the I/O ports, which can be programmed as inputs or outputs depending on the application's needs.

5. Setting I2C Address Pins:

- A0, A1, and A2 (pins 13, 5, and 6, respectively) must be configured to set the I2C address of the device, connecting them to either VCC or GND as required.

Design Considerations:

1. Voltage Compatibility: Ensure that VCC matches the logic level voltage of the microcontroller.

2. I2C Address Setting: Properly configure A0, A1, and A2 to avoid I2C address conflicts.

3. Pull-up Resistors on I2C Lines: Include appropriate pull-up resistors on the SDA and SCL lines to ensure stable communication.

4. Input/Output Configuration: Appropriately set up P0 to P7 pins as input or output based on the specific application requirements.

To sum up, the PCA9534PWRG4 is a useful and adaptable way to increase the input/output (I/O) capabilities of systems that use microcontrollers. Its low power consumption, pin configuration flexibility, and conformance to I2C-bus standards make it an extremely useful component in many electronic applications, particularly embedded systems and consumer electronics.

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6. What is the process for return or replacement of PCA9534PWRG4?

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(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 PCA9534PWRG4.

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

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