PCA9551D,112

Product Overview

The PCA9551D,112 belongs to the category of I2C-bus controlled 8-bit I/O expander for open-drain outputs. It is commonly used in various electronic devices and systems to provide additional input/output capabilities. The PCA9551D,112 is known for its characteristics such as high flexibility, compact package, and compatibility with a wide range of microcontrollers. It is available in a small package size and is designed to be easily integrated into different electronic designs.

Basic Information

• Category: I2C-bus controlled 8-bit I/O expander
• Use: Provides additional input/output capabilities in electronic devices and systems
• Characteristics: High flexibility, compact package, compatibility with a wide range of microcontrollers
• Package: Small form factor
• Essence: Enhances the I/O capabilities of electronic designs
• Packaging/Quantity: Available in standard packaging with specified quantities

Specifications

The PCA9551D,112 features include: - 8-bit remote I/O ports that can be individually configured as inputs or outputs - Compatibility with the I2C-bus interface - Low standby current consumption - Operating voltage range of 2.3 V to 5.5 V - ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101

Detailed Pin Configuration

The detailed pin configuration of PCA9551D,112 includes: 1. P0-P7: I/O Ports 2. SDA: Serial Data Line 3. SCL: Serial Clock Line 4. A0-A2: Device Address Inputs 5. GND: Ground 6. VCC: Supply Voltage

Functional Features

The functional features of PCA9551D,112 are: - Individual configuration of each I/O port as either an input or output - Simplified I2C-bus interface for easy control - Low power consumption in standby mode - Robust ESD protection for reliability in various environments

Advantages and Disadvantages

Advantages

• Flexibility in configuring individual I/O ports
• Compatibility with a wide range of microcontrollers
• Low standby current consumption

Disadvantages

• Limited number of I/O ports (8-bit)

Working Principles

The PCA9551D,112 operates by interfacing with a microcontroller through the I2C-bus interface. Each I/O port can be independently configured as an input or output, providing flexibility in design. The device communicates with the microcontroller to enable control over the connected input/output devices.

Detailed Application Field Plans

The PCA9551D,112 finds applications in various fields, including: - Consumer electronics - Industrial automation - Internet of Things (IoT) devices - Automotive electronics - Medical devices

Detailed and Complete Alternative Models

Some alternative models to PCA9551D,112 include: - MCP23008 - PCF8574 - MAX7311

In summary, the PCA9551D,112 is a versatile I2C-bus controlled 8-bit I/O expander that offers flexibility, compatibility, and low power consumption. Its compact package and functional features make it suitable for a wide range of electronic applications.

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