PCA9536YZPR

Product Overview

Category: Integrated Circuit (IC)

Use: The PCA9536YZPR is a 4-bit I2C-bus and SMBus I/O expander designed for general-purpose input/output expansion applications. It provides a simple solution when additional I/Os are needed for a microcontroller or other digital devices.

Characteristics: - 4-bit I/O expander - I2C-bus and SMBus compatible - Low standby current consumption - Schmitt trigger inputs for noise suppression - Open-drain interrupt output - 5 V tolerant inputs - ESD protection exceeds JESD 22

Package: The PCA9536YZPR is available in a small outline package (SO) with a lead-free finish. The package dimensions are 3.9 mm x 4.9 mm x 1.25 mm.

Essence: The essence of the PCA9536YZPR lies in its ability to expand the number of available I/O pins, providing flexibility and increased functionality to digital devices.

Packaging/Quantity: The PCA9536YZPR is typically sold in reels containing 2500 units per reel.

Specifications

• Supply voltage range: 2.3 V to 5.5 V
• Input voltage range: 0 V to VDD
• Output voltage range: 0 V to VDD
• Maximum output current: 25 mA
• Operating temperature range: -40°C to +85°C

Pin Configuration

The PCA9536YZPR has a total of 16 pins, which are assigned as follows:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | SDA | Serial Data Line | | 2 | SCL | Serial Clock Line | | 3 | A0 | Address Input 0 | | 4 | A1 | Address Input 1 | | 5-8 | P0-P3 | I/O Port Pins | | 9 | INT | Interrupt Output | | 10 | GND | Ground | | 11-14 | NC | No Connection | | 15 | VDD | Supply Voltage | | 16 | RESET | Reset Input |

Functional Features

The PCA9536YZPR offers the following functional features:

1. I2C-bus and SMBus compatible interface for easy integration with microcontrollers and digital devices.
2. Low standby current consumption, making it suitable for battery-powered applications.
3. Schmitt trigger inputs provide noise suppression, ensuring reliable operation in noisy environments.
4. Open-drain interrupt output allows for efficient communication between devices.
5. 5 V tolerant inputs enable compatibility with both 3.3 V and 5 V systems.
6. ESD protection exceeds JESD 22 standards, enhancing device durability.

Advantages and Disadvantages

Advantages: - Simple and cost-effective solution for expanding I/O capabilities. - Wide supply voltage range allows for versatile usage. - Compatibility with I2C-bus and SMBus simplifies integration. - Low standby current consumption extends battery life. - Robust design with ESD protection ensures reliability.

Disadvantages: - Limited to 4-bit I/O expansion, may not be sufficient for complex applications requiring a higher number of I/O pins. - Lack of additional advanced features compared to more specialized I/O expanders.

Working Principles

The PCA9536YZPR operates by communicating with a microcontroller or host device through the I2C-bus or SMBus interface. It receives commands and data from the controller and controls the input/output pins accordingly. The device can be addressed using the A0 and A1 pins, allowing multiple PCA9536YZPR devices to be connected on the same bus.

Detailed Application Field Plans

The PCA9536YZPR finds applications in various fields, including but not limited to:

1. Industrial automation: Used for controlling sensors, actuators, and other peripheral devices in industrial control systems.
2. Home automation: Enables expansion of I/O capabilities in smart home devices, such as lighting control systems and security systems.
3. Consumer electronics: Integrated into audio/video equipment, gaming consoles, and home appliances to provide additional I/O functionality.
4. Automotive: Utilized for controlling various automotive components, such as lighting systems, climate control, and dashboard displays.
5. Internet of Things (IoT): Facilitates connectivity and control of IoT devices by expanding the number of available I/O pins.

Detailed and Complete Alternative Models

1. PCA9554APW: 8-bit I2C-bus and SMBus I/O expander with interrupt output.
2. MCP23017-E/SP: 16-bit I2C-bus