PCA9536DGKR

Product Overview

Category: Integrated Circuit (IC)

Use: The PCA9536DGKR is a 4-bit I2C and SMBus I/O expander with an interrupt output and configurable I/O pins. It is designed to provide additional input/output (I/O) ports for microcontrollers or other digital devices.

Characteristics: - 4 programmable I/O pins - I2C and SMBus compatible interface - Interrupt output for efficient communication - Low standby current consumption - Wide operating voltage range: 2.3V to 5.5V - Small package size: VSSOP-8

Package: The PCA9536DGKR is available in a VSSOP-8 package, which stands for Very Small Outline Package. This compact package allows for space-efficient integration into various electronic devices.

Essence: The essence of the PCA9536DGKR lies in its ability to expand the number of I/O pins available to a microcontroller or digital device, enabling greater flexibility and functionality in system design.

Packaging/Quantity: The PCA9536DGKR is typically sold in reels containing 3000 units per reel.

Specifications

• Supply Voltage Range: 2.3V to 5.5V
• I/O Voltage Range: 0V to VDD
• Maximum Output Current: 25mA per I/O pin
• Operating Temperature Range: -40°C to +85°C
• Communication Interface: I2C, SMBus
• Package Type: VSSOP-8

Pin Configuration

The PCA9536DGKR features a total of 8 pins, each serving a specific function. The detailed pin configuration is as follows:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | SDA | I2C Data | | 2 | SCL | I2C Clock | | 3 | INT | Interrupt Output | | 4 to 7 | P0 to P3 | Programmable I/O Pins | | 8 | GND | Ground |

Functional Features

1. I/O Expansion: The PCA9536DGKR provides 4 additional programmable I/O pins, allowing for increased connectivity and versatility in system design.

2. Interrupt Output: The interrupt output pin (INT) enables efficient communication between the PCA9536DGKR and the microcontroller, reducing the need for continuous polling of I/O status.

3. Low Standby Current: The device features a low standby current consumption, making it suitable for power-sensitive applications.

4. Wide Operating Voltage Range: With an operating voltage range of 2.3V to 5.5V, the PCA9536DGKR can be used in various voltage environments.

Advantages and Disadvantages

Advantages: - Compact package size allows for space-efficient integration - Provides additional I/O pins for enhanced system flexibility - Interrupt output improves communication efficiency - Low standby current consumption for power-sensitive applications

Disadvantages: - Limited to 4 programmable I/O pins, may not be sufficient for complex systems requiring more I/O ports - Requires I2C or SMBus compatible interface for communication

Working Principles

The PCA9536DGKR operates by communicating with a microcontroller or digital device through the I2C or SMBus interface. It receives commands from the controller to configure the I/O pins as inputs or outputs. The state of each pin can be read or set individually. The interrupt output pin (INT) is used to notify the controller when any of the I/O pins experience a change in state.

Application Field Plans

The PCA9536DGKR finds applications in various fields where additional I/O ports are required. Some potential application areas include:

1. Embedded Systems: Used to expand the number of I/O pins in microcontroller-based embedded systems, enabling connection to external devices such as sensors, actuators, and displays.

2. Automotive Electronics: Integrated into automotive electronic control units (ECUs) to provide extra I/O ports for controlling lights, switches, and other peripherals.

3. Industrial Automation: Employed in industrial automation systems to increase the number of I/O channels available for monitoring and controlling equipment.

4. Consumer Electronics: Integrated into consumer electronic devices to enhance connectivity options and enable interaction with external peripherals.

Alternative Models

For those seeking alternative options, the following models offer similar functionality to the PCA9536DGKR:

1. PCA9554ADGVR: 8-bit I2C and SMBus I/O expander with interrupt output and configurable I/O pins. Available in a TSSOP-16 package.

2. MCP23017-E/SP: 16-bit I2C I