PCA9506BS,118

Product Overview

Category

PCA9506BS,118 belongs to the category of integrated circuits (ICs).

Use

The PCA9506BS,118 is commonly used as an I/O expander for microcontrollers and other digital devices.

Characteristics

• The PCA9506BS,118 is a 40-pin IC with 16 bidirectional I/O ports.
• It operates at a voltage range of 2.3V to 5.5V.
• The device is compatible with both 3.3V and 5V logic levels.
• It has a maximum output current of 25mA per I/O pin.
• The PCA9506BS,118 supports hot insertion and removal of devices.
• It features a low standby current consumption of only 1µA.

Package

The PCA9506BS,118 is available in a small outline package (SOP) with a dimension of 10mm x 6.1mm.

Essence

The essence of PCA9506BS,118 lies in its ability to expand the number of I/O ports available on a microcontroller or digital device.

Packaging/Quantity

The PCA9506BS,118 is typically sold in reels containing 2500 units per reel.

Specifications

• Number of I/O Ports: 16
• Supply Voltage Range: 2.3V to 5.5V
• Logic Compatibility: 3.3V and 5V
• Maximum Output Current: 25mA per I/O pin
• Standby Current Consumption: 1µA

Detailed Pin Configuration

The PCA9506BS,118 has a total of 40 pins. The pin configuration is as follows:

1. VDD - Power supply voltage
2. GND - Ground
3. SDA - Serial data input/output
4. SCL - Serial clock input 5-20. P0-P15 - Bidirectional I/O ports 21-40. NC - No connection

Functional Features

• Bidirectional I/O Ports: The PCA9506BS,118 provides 16 bidirectional I/O ports that can be individually configured as inputs or outputs.
• Hot Insertion and Removal: The device supports hot insertion and removal of devices without causing any damage.
• Low Standby Current Consumption: The PCA9506BS,118 has a low standby current consumption of only 1µA, making it suitable for power-sensitive applications.

Advantages and Disadvantages

Advantages

• Expandable I/O Capability: The PCA9506BS,118 allows for the expansion of I/O ports on microcontrollers and digital devices, providing flexibility in system design.
• Compatibility: It is compatible with both 3.3V and 5V logic levels, making it versatile for various applications.
• Low Power Consumption: The device consumes minimal power in standby mode, contributing to energy efficiency.

Disadvantages

• Limited Number of I/O Ports: The PCA9506BS,118 offers 16 I/O ports, which may not be sufficient for applications requiring a large number of I/Os.
• Package Size: The small outline package (SOP) may limit the ease of soldering and handling for some users.

Working Principles

The PCA9506BS,118 works by utilizing an I2C interface to communicate with the microcontroller or digital device. It acts as an I/O expander, allowing the microcontroller to control and monitor additional I/O ports beyond its native capabilities. The device receives commands from the microcontroller through the serial data (SDA) and serial clock (SCL) lines, and accordingly sets the direction and state of each I/O port.

Detailed Application Field Plans

The PCA9506BS,118 finds applications in various fields, including but not limited to:

1. Industrial Automation: It can be used to expand the I/O capabilities of programmable logic controllers (PLCs) and industrial control systems.
2. Consumer Electronics: The device can be employed in home automation systems, smart appliances, and multimedia devices to enhance their connectivity options.
3. Automotive: It can be utilized in automotive electronics for expanding I/O ports in vehicle control units and infotainment systems.
4. Internet of Things (IoT): The PCA9506BS,118 is suitable for IoT applications where multiple sensors and actuators need to be connected to a microcontroller.

Detailed and Complete Alternative Models

1. PCA9555PW,112: This 16-bit I/O expander offers similar functionality to the PCA9506BS,118 and comes in a TSSOP package.
2. MCP23017-E/SP: This 16-bit I/O expander from Microchip provides enhanced features such as interrupt capability and higher output current per pin.
3. MAX7313ATG+: Maxim Integrated's 16-bit I