TCA9535RGER

Name: TCA9535RGER
Rating: 4.5 (10 reviews)

Microcontroller-based interface expansion solutio

5,403 Effective Inventory

TCA9535RGER

Effective Inventory5,403

Microcontroller-based interface expansion solutio

Manufacturer Part # : TCA9535RGER
Package/Case: VQFN-24
Brand: Texas Instruments
Product Categories : I/O Expanders

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TCA9535RGER DataSheet

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Details

The TCA9535RGER from Texas Instruments is a powerhouse of an I/O expander, boasting 16-bit GPIO channels that are sure to enhance the functionality of your system. With its VQFN-24 package, this device is not only compact but also highly efficient. Its seamless communication through the I2C interface ensures easy integration into various systems, making it a top choice for engineers seeking to broaden their I/O capabilities. Additionally, the programmable polarity inversion feature adds a layer of customization, allowing users to tailor the device to their specific needs

Key Features

Safe and reliable operation in harsh environments
Complies with international safety standards IEC/EN/UL/cUL 62368-1
RoHS compliance for reduced environmental impact

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Number of I/Os	16	Features	Configuration registers, Interrupt pin
Supply voltage (min) (V)	1.65	Supply voltage (max) (V)	5.5
Addresses	8	Rating	Catalog
Frequency (max) (MHz)	0.4	Operating temperature range (°C)	-40 to 85

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification TCA9535RGER PDF Download

FAQs

What is TCA9535RGER?

The TCA9535RGER is an 16-bit I2C I/O expander with interrupt output designed by Texas Instruments. It provides GPIO pins for expanding the I/O capabilities of microcontrollers or other digital systems, enabling flexible interfacing and control options.

How Does TCA9535RGER Work?

The TCA9535RGER operates by connecting to a microcontroller or system via the I2C interface, allowing the control of its 16 GPIO pins. It can be used to read input states or set output states of the pins, providing additional digital I/O functionality to the host system.

How Many Pins does TCA9535RGER have and What are the Functions of the Pinout Configuration?

The TCA9535RGER is housed in a 24-pin VQFN (Very Thin Quad Flat No-Lead) package. The pinout configuration includes:

VCC: Power supply pin.
GND: Ground pin.
SDA, SCL: I2C bus communication pins.
A0, A1, A2: Address selection pins for I2C address configuration.
RESET: Reset pin for device initialization.
P0-P7: GPIO pins with configurable input/output functionality.
INT: Interrupt output pin.

What are the Pros and Cons of TCA9535RGER?

Pros:

Expandable I/O: Adds 16 GPIO pins to the host system for increased interfacing capabilities.
I2C Interface: Easy interfacing with microcontrollers or digital systems through the I2C protocol.
Interrupt Output: Provides interrupt capability for efficient event-driven operations.
Low Power Consumption: Operates with low power consumption, suitable for portable and battery-powered devices.
Small Package: The VQFN package offers a compact footprint for space-constrained designs.

Cons:

Complexity: Requires understanding of I2C communication and GPIO programming for proper usage.
Address Configurations: Address pin settings may need to be carefully managed to avoid conflicts in I2C bus systems.
External Pull-up Resistors: External pull-up resistors may be needed for proper I2C communication.

Are There Any Equivalents/Alternatives to TCA9535RGER for Recommendation?

The PCF8575 from NXP Semiconductors is a similar I2C I/O expander with interrupt functionality.
Alternatives to the TCA9535RGER include the MCP23017 from Microchip Technology and the MAX7311 from Maxim Integrated.

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TCA9535RGER

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