PCA9554APW,112

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: I/O Expander
• Characteristics: 8-bit I2C-bus and SMBus I/O expander with interrupt output and reset
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: The PCA9554APW,112 is a versatile I/O expander that provides additional input/output ports for microcontrollers or other digital devices.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 2.3V to 5.5V
• Number of I/Os: 8
• I/O Voltage Level: 1.8V to 5.5V
• I2C-bus Frequency: Up to 400 kHz
• Interrupt Output: Open-drain output
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PCA9554APW,112 has a total of 16 pins. The pin configuration is as follows:

Pin 1: SDA - Serial Data Input/Output Pin 2: SCL - Serial Clock Input Pin 3: A0 - Address Input Bit 0 Pin 4: A1 - Address Input Bit 1 Pin 5: A2 - Address Input Bit 2 Pin 6: INT - Interrupt Output Pin 7: RESET - Active-Low Reset Input Pin 8-15: P0-P7 - General Purpose I/O Pins Pin 16: GND - Ground

Functional Features

• Provides 8 programmable I/O pins
• Supports both input and output modes for each pin
• Can be controlled using the I2C-bus or SMBus interface
• Interrupt output pin for efficient event notification
• Reset input pin to restore default settings

Advantages and Disadvantages

Advantages: - Compact and versatile I/O expander - Wide supply voltage range allows compatibility with various systems - Interrupt output facilitates efficient event handling - Reset input ensures reliable operation

Disadvantages: - Limited number of I/O pins (8) - Requires I2C-bus or SMBus interface for control

Working Principles

The PCA9554APW,112 operates by communicating with a microcontroller or other digital devices through the I2C-bus or SMBus interface. It provides additional I/O ports that can be configured as inputs or outputs. The device can be addressed using three address input pins (A0, A1, A2), allowing multiple PCA9554APW,112 devices to be connected on the same bus.

Detailed Application Field Plans

The PCA9554APW,112 finds applications in various fields where additional I/O ports are required. Some potential application areas include: - Industrial automation - Home automation - Internet of Things (IoT) devices - Robotics - Sensor interfaces

Detailed and Complete Alternative Models

• PCA9554PW,118: Similar to PCA9554APW,112 but without the interrupt output and reset features.
• PCA9535PW,118: 16-bit I/O expander with similar functionality but more I/O pins.
• MCP23008: 8-bit I/O expander with similar features and I2C-bus interface.

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