PCA9535ECDTR2G

Product Overview

Category: Integrated Circuit (IC)

Use: GPIO Expander

Characteristics: - 16-bit I/O expander with interrupt output - Low standby current consumption - Compatible with both 3.3V and 5V systems - Supports both SMBus and I2C interfaces

Package: TSSOP-24

Essence: The PCA9535ECDTR2G is a versatile GPIO expander IC that allows for easy expansion of general-purpose input/output (GPIO) pins in electronic systems.

Packaging/Quantity: The PCA9535ECDTR2G is available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage: 2.3V to 5.5V
• Number of I/O Pins: 16
• Input/Output Logic Level: 3.3V or 5V
• Maximum Output Current: 25mA per pin
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The PCA9535ECDTR2G has a total of 24 pins, which are arranged as follows:

┌───┬───┐ │1 └─ 24│ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ └───┬───┘

Functional Features

• 16 programmable I/O pins
• Interrupt output for efficient event-driven systems
• Individual pin configuration for input or output mode
• Programmable polarity inversion for input pins
• Internal power-on reset
• Low standby current consumption (less than 1µA)

Advantages and Disadvantages

Advantages: - Easy expansion of GPIO pins in electronic systems - Compatible with both 3.3V and 5V systems - Supports SMBus and I2C interfaces - Low standby current consumption

Disadvantages: - Limited to 16 I/O pins

Working Principles

The PCA9535ECDTR2G is controlled through the I2C or SMBus interface. It acts as an I/O expander, allowing the microcontroller to control additional GPIO pins beyond its native capabilities. The device can be configured to operate in either input or output mode on a per-pin basis. It also supports interrupt functionality, which enables efficient event-driven systems.

Detailed Application Field Plans

The PCA9535ECDTR2G finds applications in various fields, including but not limited to:

1. Industrial automation: Used to expand the number of I/O pins in control systems for machinery and equipment.
2. Consumer electronics: Enables additional control options in devices such as smart home systems, gaming consoles, and remote controls.
3. Automotive: Provides extra I/O pins for controlling lighting, sensors, and other peripherals in vehicles.
4. Internet of Things (IoT): Facilitates connectivity and control in IoT devices, allowing for more versatile functionality.

Detailed and Complete Alternative Models

1. PCA9555PW,112 - 16-bit I/O expander with similar features and package (TSSOP-24).
2. MCP23017-E/SP - 16-bit I/O expander with higher maximum output current (25mA per pin) and wider operating temperature range (-40°C to +125°C).
3. MAX7313ATG+ - 16-bit I/O expander with programmable GPIO pins and interrupt functionality.

These alternative models offer similar functionality to the PCA9535ECDTR2G and can be considered as alternatives based on specific requirements.

Word count: 439 words