PCA9501PW,118

Product Overview

Category

PCA9501PW,118 belongs to the category of integrated circuits (ICs).

Use

The PCA9501PW,118 is commonly used as an I/O expander in various electronic devices.

Characteristics

• The IC provides additional input/output (I/O) ports for devices with limited I/O capabilities.
• It operates at a low voltage, making it suitable for battery-powered devices.
• The PCA9501PW,118 offers high-speed I2C-bus interface communication.

Package

The PCA9501PW,118 is available in a small outline package (SOP) with 16 pins.

Essence

The essence of PCA9501PW,118 lies in its ability to expand the I/O capabilities of electronic devices efficiently and effectively.

Packaging/Quantity

The PCA9501PW,118 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 2.3V to 5.5V
• Number of I/O Ports: 8
• I2C-bus Interface Speed: Up to 400 kHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PCA9501PW,118 has a total of 16 pins, which are configured as follows:

1. SDA - Serial Data Input/Output
2. SCL - Serial Clock Input
3. RESET - Reset Input
4. INT - Interrupt Output
5. P00 - Port 0, Bit 0
6. P01 - Port 0, Bit 1
7. P02 - Port 0, Bit 2
8. P03 - Port 0, Bit 3
9. GND - Ground
10. VCC - Supply Voltage
11. P04 - Port 0, Bit 4
12. P05 - Port 0, Bit 5
13. P06 - Port 0, Bit 6
14. P07 - Port 0, Bit 7
15. A1 - Address Input 1
16. A0 - Address Input 0

Functional Features

• The PCA9501PW,118 provides bidirectional I/O expansion for devices with limited I/O ports.
• It supports both input and output operations on each port independently.
• The IC features a hardware reset function to restore the default settings.
• It offers an interrupt output to notify the host controller of any changes in the I/O status.

Advantages and Disadvantages

Advantages

• Efficiently expands the I/O capabilities of electronic devices.
• Low voltage operation makes it suitable for battery-powered devices.
• High-speed I2C-bus interface enables fast communication.

Disadvantages

• Limited number of I/O ports (8 ports).
• Requires an external microcontroller or host controller for proper functionality.

Working Principles

The PCA9501PW,118 operates by receiving commands and data through the I2C-bus interface. It communicates with the host controller using the I2C protocol, allowing the controller to control and monitor the I/O ports. The IC can be configured to operate in different modes, such as input, output, or a combination of both, depending on the requirements of the connected device.

Detailed Application Field Plans

The PCA9501PW,118 finds applications in various fields, including but not limited to:

1. Consumer Electronics: Used in smart home devices, remote controls, and audio/video equipment.
2. Industrial Automation: Integrated into industrial control systems, PLCs, and robotic applications.
3. Automotive: Employed in automotive electronics for controlling lights, sensors, and actuators.
4. Medical Devices: Utilized in medical equipment for data acquisition and control purposes.

Detailed and Complete Alternative Models

1. PCA9500PW,118: Similar to PCA9501PW,118 but with 8 additional I/O ports.
2. PCA9535PW,118: Offers 16 I/O ports with interrupt capabilities.
3. MCP23017-E/SP: Another I/O expander IC with 16 ports and I2C-bus interface.

These alternative models provide similar functionality and can be considered as alternatives to the PCA9501PW,118 based on specific requirements.

In conclusion, the PCA9501PW,118 is an integrated circuit that serves as an I/O expander, providing additional I/O ports for devices with limited capabilities. Its low voltage operation, high-speed communication, and compact package make it suitable for various applications in consumer electronics, industrial automation, automotive, and medical devices. While it has a limited number of I/O ports, there are alternative models available with different features and specifications to suit specific needs.