PCA9554ADB,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: I/O Expander
• Characteristics: Low-voltage 8-bit I2C-bus and SMBus I/O expander with interrupt output and configuration registers
• Package: TSSOP-16
• Essence: The PCA9554ADB,118 is a versatile I/O expander that provides additional input/output pins for microcontrollers or other devices.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.3V to 5.5V
• Input/Output Voltage: 0V to VDD
• Maximum Output Current: 25mA per I/O pin
• I2C-bus Frequency: Up to 400kHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PCA9554ADB,118 has a total of 16 pins in the TSSOP-16 package. The pin configuration is as follows:

1. SDA - Serial Data Input/Output
2. SCL - Serial Clock Input
3. A0 - Address Input
4. A1 - Address Input
5. A2 - Address Input
6. INT - Interrupt Output
7. P0 - General Purpose I/O Pin 0
8. P1 - General Purpose I/O Pin 1
9. P2 - General Purpose I/O Pin 2
10. P3 - General Purpose I/O Pin 3
11. P4 - General Purpose I/O Pin 4
12. P5 - General Purpose I/O Pin 5
13. P6 - General Purpose I/O Pin 6
14. P7 - General Purpose I/O Pin 7
15. GND - Ground
16. VDD - Supply Voltage

Functional Features

• 8-bit I/O expander with a bi-directional I2C-bus/SMBus interface
• Configurable input or output pins
• Interrupt output for efficient event notification
• Internal power-on reset
• Low standby current consumption
• Noise filter on SDA/SCL inputs for improved performance in noisy environments

Advantages and Disadvantages

Advantages: - Provides additional I/O pins without using extra microcontroller pins - Easy to interface with microcontrollers through the I2C-bus/SMBus - Interrupt output allows efficient event handling - Low power consumption in standby mode

Disadvantages: - Limited number of I/O pins (8 in total) - Requires an external pull-up resistor for the I2C-bus/SMBus lines

Working Principles

The PCA9554ADB,118 is controlled through the I2C-bus/SMBus interface. The microcontroller sends commands and data to configure the I/O pins as inputs or outputs. It can also set the logic levels of the output pins. The interrupt output can be used to notify the microcontroller of any changes on the input pins.

Detailed Application Field Plans

The PCA9554ADB,118 can be used in various applications where additional I/O pins are required. Some potential application fields include: - Industrial automation systems - Home automation systems - Internet of Things (IoT) devices - Robotics - Sensor interfaces

Detailed and Complete Alternative Models

• PCA9554APW,118: TSSOP-16 package, same functionality as PCA9554ADB,118
• PCA9554ARGTR,118: QFN-16 package, same functionality as PCA9554ADB,118
• PCA9554ADGVR,118: TVSOP-16 package, same functionality as PCA9554ADB,118

Note: These alternative models have different package options but offer the same features and functionality as the PCA9554ADB,118.

This entry provides an overview of the PCA9554ADB,118, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models. The PCA9554ADB,118 is a versatile I/O expander that can be used in various applications to provide additional input/output pins for microcontrollers or other devices.