PCA9504ADGG,112

Product Overview

Category

The PCA9504ADGG,112 belongs to the category of I2C-bus controlled 8-bit I/O expander for open-drain outputs.

Use

This product is used to provide general-purpose remote I/O expansion for most microcontroller families via the I2C-bus interface.

Characteristics

• Package: TSSOP24
• Essence: I2C-bus controlled 8-bit I/O expander
• Packaging/Quantity: Tape and Reel (2500 units per reel)

Specifications

The PCA9504ADGG,112 features: - 5 V tolerant I/O ports - Operating voltage range of 2.3 V to 5.5 V - Low standby current - Noise filter on SCL/SDA inputs

Detailed Pin Configuration

The detailed pin configuration of PCA9504ADGG,112 includes 24 pins in a TSSOP package, with specific pins allocated for power supply, I2C-bus interface, and I/O ports.

Functional Features

• I2C-bus interface compatibility
• Open-drain output configuration
• Noise filtering on I2C-bus inputs
• Address selection pins for multiple devices on the same bus

Advantages and Disadvantages

Advantages

• Simplifies I/O expansion for microcontrollers
• Low standby current consumption
• Noise filtering enhances signal integrity

Disadvantages

• Limited to open-drain outputs
• Requires external pull-up resistors for each I/O port

Working Principles

The PCA9504ADGG,112 operates by receiving commands from the microcontroller via the I2C-bus interface to control the state of its 8 I/O ports. It utilizes open-drain outputs to interface with external circuitry.

Detailed Application Field Plans

This product is suitable for various applications including: - LED dimming control - Keypad scanning - GPIO expansion for microcontrollers

Detailed and Complete Alternative Models

Some alternative models to PCA9504ADGG,112 include: - PCA9554APW,118 - MCP23008-E/SN - MAX7311ATG+

In conclusion, the PCA9504ADGG,112 offers a versatile solution for I/O expansion in embedded systems, with its I2C-bus interface and open-drain outputs making it suitable for a wide range of applications.

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