PCA9536D,112

Product Overview

Category

PCA9536D,112 belongs to the category of integrated circuits (ICs).

Use

The PCA9536D,112 is commonly used as an 8-bit I2C-bus and SMBus I/O expander. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C-bus interface.

Characteristics

• 8-bit remote I/O expander
• Low standby current consumption of 1 µA
• Compatible with I2C-bus and SMBus protocols
• Supports 100 kHz and 400 kHz I2C-bus speeds
• 5 V tolerant inputs
• Open-drain interrupt output
• Active-low reset input
• Noise filter on SCL/SDA inputs
• ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101

Package

The PCA9536D,112 is available in a small package known as TSSOP (Thin Shrink Small Outline Package). This package offers a compact size and easy integration into various electronic devices.

Essence

The essence of PCA9536D,112 lies in its ability to expand the input/output capabilities of microcontrollers through the I2C-bus interface.

Packaging/Quantity

The PCA9536D,112 is typically packaged in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply voltage: 2.3 V to 5.5 V
• Input voltage range: GND to VDD
• Operating temperature range: -40°C to +85°C
• I2C-bus frequency: 100 kHz and 400 kHz
• Number of I/O pins: 8
• Maximum output current per I/O pin: ±25 mA

Detailed Pin Configuration

The PCA9536D,112 has a total of 16 pins. The following table provides a detailed pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | SDA | Serial Data Input/Output | | 2 | SCL | Serial Clock Input | | 3 | A0 | Address Select Input | | 4 | A1 | Address Select Input | | 5 | A2 | Address Select Input | | 6 to 13 | P0 to P7 | General Purpose I/O Pins | | 14 | INT | Interrupt Output | | 15 | RESET | Active-Low Reset Input | | 16 | VDD | Supply Voltage | | 17 | GND | Ground |

Functional Features

The PCA9536D,112 offers the following functional features:

1. I2C-bus and SMBus compatibility allows easy integration with various microcontroller families.
2. Low standby current consumption ensures energy efficiency in power-sensitive applications.
3. Noise filter on SCL/SDA inputs helps in reducing signal interference.
4. Open-drain interrupt output enables efficient communication between devices.
5. 5 V tolerant inputs provide flexibility in interfacing with different voltage levels.
6. ESD protection safeguards the IC from electrostatic discharge.

Advantages and Disadvantages

Advantages

• Easy integration with microcontrollers through the I2C-bus interface.
• Low standby current consumption for energy-efficient operation.
• Compatibility with both I2C-bus and SMBus protocols.
• Robust ESD protection exceeding industry standards.

Disadvantages

• Limited number of I/O pins (8) may restrict the expansion capabilities in certain applications.
• Requires additional components for proper functioning, such as pull-up resistors and decoupling capacitors.

Working Principles

The PCA9536D,112 operates by communicating with a microcontroller through the I2C-bus interface. It receives commands from the microcontroller to set the state of its I/O pins as inputs or outputs. The input states can be read back by the microcontroller, while the output states can be controlled by writing appropriate values to the IC. The interrupt output pin (INT) can be used to notify the microcontroller about any changes in the input states.

Detailed Application Field Plans

The PCA9536D,112 finds application in various fields, including but not limited to:

1. Industrial automation: Used for remote I/O expansion in control systems.
2. Consumer electronics: Enables additional input/output capabilities in devices like smart home controllers.
3. Automotive: Integrated into vehicle control modules for expanding I/O functionality.
4. Internet of Things (IoT): Facilitates communication between IoT devices and microcontrollers.
5. Robotics: Provides extended I/O capabilities for