PCAL6416AERX

Product Overview

Category

PCAL6416AERX belongs to the category of integrated circuits (ICs).

Use

It is commonly used for input/output (I/O) expansion in various electronic devices.

Characteristics

• PCAL6416AERX is a 16-bit I/O expander with an I2C interface.
• It provides additional general-purpose I/O pins for controlling external devices.
• The device operates at a voltage range of 1.65V to 5.5V, making it suitable for a wide range of applications.
• It offers high-speed I2C communication, allowing for efficient data transfer.
• PCAL6416AERX has built-in ESD protection, ensuring reliability and durability.

Package

The PCAL6416AERX comes in a small outline package (SOIC) with 24 pins.

Essence

The essence of PCAL6416AERX lies in its ability to expand the number of available I/O pins in electronic systems, enabling greater flexibility in device control and connectivity.

Packaging/Quantity

The PCAL6416AERX is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 1.65V to 5.5V
• Number of I/O Pins: 16
• Interface: I2C
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOIC-24

Detailed Pin Configuration

The PCAL6416AERX has a total of 24 pins, which are assigned as follows:

1. SDA (Serial Data)
2. SCL (Serial Clock)
3. INT (Interrupt Output)
4. RESET (Reset Input)
5. GND (Ground)
6. P0 (General Purpose I/O Pin 0)
7. P1 (General Purpose I/O Pin 1)
8. P2 (General Purpose I/O Pin 2)
9. P3 (General Purpose I/O Pin 3)
10. P4 (General Purpose I/O Pin 4)
11. P5 (General Purpose I/O Pin 5)
12. P6 (General Purpose I/O Pin 6)
13. P7 (General Purpose I/O Pin 7)
14. P8 (General Purpose I/O Pin 8)
15. P9 (General Purpose I/O Pin 9)
16. P10 (General Purpose I/O Pin 10)
17. P11 (General Purpose I/O Pin 11)
18. P12 (General Purpose I/O Pin 12)
19. P13 (General Purpose I/O Pin 13)
20. P14 (General Purpose I/O Pin 14)
21. P15 (General Purpose I/O Pin 15)
22. VCC (Supply Voltage)
23. VCC (Supply Voltage)
24. NC (No Connection)

Functional Features

• I2C interface for easy integration with microcontrollers and other devices.
• Configurable I/O pins allow for input or output mode selection.
• Interrupt functionality enables efficient event-driven processing.
• Software programmable pull-up resistors for enhanced signal integrity.
• Low power consumption in standby mode, conserving energy.

Advantages and Disadvantages

Advantages

• Provides additional I/O pins, expanding the capabilities of electronic systems.
• Wide operating voltage range allows compatibility with various devices.
• High-speed I2C communication ensures efficient data transfer.
• Built-in ESD protection enhances reliability.

Disadvantages

• Limited number of I/O pins compared to some other expanders.
• Requires I2C bus availability for communication.

Working Principles

PCAL6416AERX operates by receiving commands and data through the I2C interface. It can be controlled by a microcontroller or any device capable of I2C communication. The device interprets the received commands to configure the I/O pins as inputs or outputs, enabling the desired functionality. The interrupt output pin can be used to notify the host device of specific events or changes in the input states.

Detailed Application Field Plans

The PCAL6416AERX finds applications in various fields, including but not limited to:

1. Consumer Electronics: Used for expanding I/O capabilities in smart home devices, remote controls, and audio/video equipment.
2. Industrial Automation: Enables additional I/O expansion in industrial control systems, PLCs, and robotics.
3. Automotive: Used for I/O expansion in automotive electronics, such as infotainment systems and dashboard controls.
4. Internet of Things (IoT): Facilitates connectivity and control in IoT devices, allowing for seamless integration with other smart devices.

Detailed and Complete Alternative Models

1. PCA9538: 8-bit I/O expander with an I