PCA9553DP/02,118

Product Overview

Category

The PCA9553DP/02,118 belongs to the category of integrated circuits (ICs) specifically designed for input/output (I/O) expansion in microcontroller-based systems.

Use

This product is commonly used to increase the number of I/O ports available in electronic devices. It provides a simple and efficient solution for connecting multiple peripheral devices to a microcontroller.

Characteristics

• I2C-bus interface compatibility
• 16 programmable I/O pins
• Low standby current consumption
• Wide operating voltage range
• High noise immunity
• Small package size

Package

The PCA9553DP/02,118 is available in a small outline package (SOP) with 20 pins.

Essence

The essence of this product lies in its ability to expand the I/O capabilities of microcontrollers, enabling the connection of additional devices without the need for complex wiring or extensive hardware modifications.

Packaging/Quantity

The PCA9553DP/02,118 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 2.3V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• I/O Voltage Level: 0V to VDD
• I2C-bus Frequency: Up to 400 kHz
• Standby Current: 1 μA (typical)
• Output Current: 25 mA (maximum)

Detailed Pin Configuration

The PCA9553DP/02,118 has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

1. SDA (Serial Data Input/Output)
2. SCL (Serial Clock Input)
3. A0 (Address Select Bit 0)
4. A1 (Address Select Bit 1)
5. RESET (Reset Input)
6. INT (Interrupt Output) 7-20. P0-P7 (Programmable I/O Pins)

Functional Features

• Bidirectional I/O expansion
• Individual programmable input or output mode for each pin
• Internal pull-up resistors for inputs
• Interrupt output for efficient event notification
• Software programmable I2C-bus address

Advantages and Disadvantages

Advantages

• Simplifies I/O expansion in microcontroller-based systems
• Reduces the need for additional hardware components
• Saves board space due to its compact package size
• Low standby current consumption helps conserve power
• Wide operating voltage range allows compatibility with various systems

Disadvantages

• Limited number of I/O pins (16 in total)
• Reliance on the I2C-bus interface may introduce communication overhead
• Not suitable for applications requiring a large number of I/O ports

Working Principles

The PCA9553DP/02,118 operates by utilizing the I2C-bus interface to communicate with the microcontroller. It receives commands from the microcontroller to configure the I/O pins as either inputs or outputs. The state of each pin can be read or set through the I2C-bus, allowing for flexible control over connected devices.

Detailed Application Field Plans

The PCA9553DP/02,118 finds application in various fields where I/O expansion is required. Some specific use cases include:

1. Home automation systems: Enabling the connection of multiple sensors, switches, and actuators to a central microcontroller.
2. Industrial control systems: Expanding the I/O capabilities of PLCs (Programmable Logic Controllers) for interfacing with various industrial devices.
3. Automotive electronics: Facilitating the integration of additional peripherals such as buttons, LEDs, and sensors in automotive applications.
4. Consumer electronics: Enhancing the functionality of devices like smart TVs, gaming consoles, and home appliances by providing additional I/O ports.

Detailed and Complete Alternative Models

1. PCA9553D,118
2. PCA9553PW,118
3. PCA9553DP,112
4. PCA9553PW,112
5. PCA9553BS,118

These alternative models offer similar functionality and characteristics to the PCA9553DP/02,118, providing options for different package types or quantity requirements.

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