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Name: PCA9539PWRG4
Brand: Texas Instruments
SKU: PCA9539PWRG4
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 PCA9539PWRG4

Part No.:: PCA9539PWRG4

Manufacturer:: Texas Instruments

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

Datasheet:: PCA9539PWRG4.pdf

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

In Stock:: 3170

Quantity:: Add To Cart

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PCA9539PWRG4 Specifications

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

PCA9539PWRG4 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PCA9539PWRG4 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 PCA9539PWRG4 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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PCA9539PWRG4 information

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PCA9539PWRG4 Typical application Circuitry

PCA9539PWRG4

The PCA9539PWRG4 is a 16-bit I2C-bus and SMBus low-power I/O expander. This chip is designed to provide additional input/output (I/O) capability to a microcontroller or processor, particularly useful in systems where the number of available GPIO pins is limited.

PCA9539PWRG4 Application Scenarios:

1. I/O Expansion in Embedded Systems: It's often used in embedded systems such as home automation devices, industrial controls, or IoT gadgets, where more GPIOs are needed for interfacing with sensors, LEDs, or other peripherals.

2. Control Functions in Consumer Electronics: Also employed in consumer electronics, like smartphones and PCs, to manage various control functionalities.

PCA9539PWRG4 Key Features and Parameters:

1. 16-Bit I/O Ports: Provides sixteen additional I/O ports, configurable as either input or output.

2. I2C-Bus Interface: Compatible with I2C-bus and SMBus, enabling easy integration into most microcontroller-based systems.

3. Low Power Consumption: Suitable for battery-powered devices due to its energy-efficient design.

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

5. Wide Operating Voltage Range: Typically operates within a voltage range of 2.3V to 5.5V, accommodating different logic levels.

Circuit Connection Example: Expanding GPIOs in an IoT Device

Overview: Utilizing PCA9539PWRG4 to enhance the number of GPIOs available for a microcontroller in an IoT device.

1. Connecting to Power Supply:

- VDD (pin 24) should be linked to the microcontroller's power supply, typically within a 2.3V to 5.5V range.

2. Grounding the Device:

- The system's ground must be connected to pin 12, or GND.

3. I2C Bus Integration:

- The microcontroller's I2C data and clock lines should be linked to pins 23 and 22, respectively, for SDA and SCL.

4. Configuring I/O Ports:

- P0.0 to P0.7 (pins 1-7) and P1.0 to P1.7 (pins 13-20) serve as the I/O ports, programmable as inputs or outputs as required by the IoT application.

5. Setting the I2C Address:

- A0, A1, and A2 (pins 21, 20, and 19, respectively) must be configured to establish the specific I2C address of the device, connecting them to VCC or GND.

Design Considerations:

1. Voltage Level Match: Ensure that VDD is compatible with the logic level of the microcontroller.

2. I2C Address Configuration: Appropriately set A0, A1, and A2 to avoid conflicts on the I2C bus.

3. Pull-Up Resistors on I2C Lines: Include suitable pull-up resistors on SDA and SCL for stable I2C communication.

4. Input/Output Port Configuration: Properly configure P0.0 to P1.7 as inputs or outputs, based on the IoT device's requirements.

5. Power Consumption Management: Be mindful of the low power consumption feature, especially in battery-powered applications.

In conclusion, the PCA9539PWRG4 is a highly effective solution for expanding the GPIO capabilities of microcontroller systems, particularly beneficial in IoT applications and complex electronics. Its 16-bit I/O expansion, I2C-bus compatibility, and energy-efficient design make it a valuable component in various applications where additional GPIOs are essential.

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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.

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