PCA9507D,118

Product Overview

Category

PCA9507D,118 belongs to the category of integrated circuits (ICs).

Use

The PCA9507D,118 is commonly used as an I/O expander for microcontroller-based systems.

Characteristics

• The PCA9507D,118 is a 40-pin IC with 16 I/O pins.
• It operates at a voltage range of 2.3V to 5.5V.
• The device supports both 3.3V and 5V logic levels.
• It has a maximum output current of 25mA per channel.
• The PCA9507D,118 is compatible with the I2C-bus interface.

Package

The PCA9507D,118 is available in a small outline package (SOP) with a dimension of 10mm x 6.1mm.

Essence

The essence of PCA9507D,118 lies in its ability to expand the number of I/O pins available for microcontrollers, enabling them to interface with a larger number of peripheral devices.

Packaging/Quantity

The PCA9507D,118 is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 2.3V to 5.5V
• Logic Levels: 3.3V and 5V
• Maximum Output Current: 25mA per channel
• Number of I/O Pins: 16
• Interface: I2C-bus

Detailed Pin Configuration

The PCA9507D,118 has a total of 40 pins. The pin configuration is as follows:

Pin 1: SDA - Serial Data Input/Output Pin 2: SCL - Serial Clock Input Pin 3-18: I/O0-I/O15 - General Purpose I/O Pins Pin 19: VDD - Supply Voltage Pin 20: GND - Ground Pin 21-40: Not Connected (NC)

Functional Features

The PCA9507D,118 offers the following functional features:

1. I2C-bus Interface: The device communicates with the microcontroller using the I2C-bus protocol, allowing for easy integration into existing systems.
2. Expandable I/O Capability: With 16 general-purpose I/O pins, the PCA9507D,118 provides additional I/O capacity for microcontrollers, enabling connection to a wide range of peripheral devices.
3. Low Power Consumption: The device operates at low power levels, making it suitable for battery-powered applications.
4. High-Speed Operation: The PCA9507D,118 supports high-speed I2C-bus communication, allowing for efficient data transfer between the microcontroller and the device.

Advantages and Disadvantages

Advantages

• Provides additional I/O pins for microcontrollers, expanding their capabilities.
• Compatible with both 3.3V and 5V logic levels.
• Low power consumption.
• High-speed operation for efficient data transfer.

Disadvantages

• Limited number of I/O pins (16) compared to other expanders available in the market.
• Requires I2C-bus interface support from the microcontroller.

Working Principles

The PCA9507D,118 functions as an I/O expander by utilizing the I2C-bus interface. It receives commands from the microcontroller through the SDA and SCL pins, allowing the microcontroller to control the state of each I/O pin. The device acts as a bridge between the microcontroller and external peripheral devices, enabling communication and control.

Detailed Application Field Plans

The PCA9507D,118 finds applications in various fields, including:

1. Industrial Automation: It can be used to expand the I/O capabilities of industrial control systems, allowing for the connection of sensors, actuators, and other peripheral devices.
2. Home Automation: The device enables the expansion of I/O pins in home automation systems, facilitating the control of lights, appliances, and security devices.
3. Internet of Things (IoT): PCA9507D,118 can be utilized in IoT applications to increase the number of I/O pins available for sensor nodes, enabling data collection and communication with the central system.

Detailed and Complete Alternative Models

• MCP23017: This I/O expander offers similar functionality to the PCA9507D,118, with 16 I/O pins and I2C-bus interface support.
• PCF8574: Another alternative, the PCF8574, provides 8 I/O pins and is compatible with the I2C-bus interface.

These alternative models offer different pin counts and may have varying features, but they serve as viable alternatives to the PCA9507D,118 depending on specific application requirements.

In conclusion, the PCA9507D