PCA9554ABS3,118

Product Overview

Category

PCA9554ABS3,118 belongs to the category of integrated circuits (ICs).

Use

It is commonly used for input/output (I/O) expansion in various electronic devices.

Characteristics

• I2C-bus and SMBus compatible
• 8-bit remote I/O port with interrupt
• Low standby current consumption
• Schmitt trigger inputs for noise suppression
• Open-drain active-low interrupt output
• 5 V tolerant I/O ports
• ESD protection exceeds JESD 22

Package

PCA9554ABS3,118 is available in a small outline package (SO) with three leads.

Essence

The essence of PCA9554ABS3,118 lies in its ability to provide additional I/O ports for electronic devices, thereby expanding their functionality.

Packaging/Quantity

This product is typically packaged in reels, with a quantity of 2500 units per reel.

Specifications

• Supply voltage: 2.3 V to 5.5 V
• Input voltage range: -0.5 V to VDD + 0.5 V
• Operating temperature range: -40°C to +85°C
• I/O pins: 8
• Maximum frequency: 400 kHz

Detailed Pin Configuration

1. A0: Address input pin
2. A1: Address input pin
3. A2: Address input pin
4. INT: Interrupt output pin
5. SDA: Serial data input/output pin
6. SCL: Serial clock input pin
7. GND: Ground pin
8. VDD: Supply voltage pin

Functional Features

• I2C-bus and SMBus compatible communication interface
• 8-bit remote I/O port allows for flexible input/output configurations
• Interrupt output pin for efficient event notification
• Schmitt trigger inputs minimize the impact of noise
• 5 V tolerant I/O ports enable compatibility with different voltage levels
• ESD protection ensures robustness against electrostatic discharge

Advantages and Disadvantages

Advantages

• Easy integration into existing systems due to I2C-bus and SMBus compatibility
• Flexible I/O configuration enhances device functionality
• Low standby current consumption helps conserve power
• Noise suppression through Schmitt trigger inputs improves signal integrity
• Robust protection against electrostatic discharge increases product reliability

Disadvantages

• Limited number of I/O pins may restrict the expansion capabilities in certain applications
• Requires familiarity with I2C-bus and SMBus protocols for proper utilization

Working Principles

PCA9554ABS3,118 operates based on the I2C-bus and SMBus communication protocols. It acts as an I/O expander by providing additional input/output ports to the host device. The device can be controlled and configured through the serial data (SDA) and serial clock (SCL) lines. The interrupt output (INT) pin allows the host device to receive notifications when specific events occur.

Detailed Application Field Plans

PCA9554ABS3,118 finds applications in various fields, including but not limited to: 1. Consumer electronics: Adding extra I/O ports to control peripherals such as LEDs, switches, and sensors. 2. Industrial automation: Expanding the I/O capabilities of programmable logic controllers (PLCs) and industrial control systems. 3. Automotive electronics: Integrating additional I/O ports for controlling lights, buttons, and other vehicle components. 4. Internet of Things (IoT): Enabling connectivity and control of multiple devices in IoT networks.

Detailed and Complete Alternative Models

1. PCA9554APW,118: Similar to PCA9554ABS3,118 but available in a TSSOP package.
2. PCA9554ADBR,118: Similar to PCA9554ABS3,118 but available in an SSOP package.
3. PCA9554ARGTR,118: Similar to PCA9554ABS3,118 but available in a QFN package.

These alternative models offer similar functionality and can be chosen based on specific application requirements.

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