PCA6416APW,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: GPIO Expander
• Characteristics:
  • Low-voltage bidirectional I/O port
  • 16 programmable pins
  • I2C-bus/SMBus interface
  • Interrupt output
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Expands the number of general-purpose input/output (GPIO) pins available in a microcontroller or other digital device.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• I2C-bus Frequency: Up to 400 kHz
• Maximum Output Current: ±10 mA
• Input Capacitance: 3 pF
• ESD Protection: >4 kV HBM, >1 kV CDM

Detailed Pin Configuration

The PCA6416APW,118 has a total of 20 pins. The pin configuration is as follows:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | SDA | Serial Data Line | | 2 | SCL | Serial Clock Line | | 3-18 | P0-P15 | Programmable I/O Pins | | 19 | INT | Interrupt Output | | 20 | GND | Ground |

Functional Features

• Bidirectional I/O: Each pin can be individually configured as an input or output.
• Programmable Pins: All 16 I/O pins are programmable, allowing customization based on specific requirements.
• I2C-bus/SMBus Interface: Supports communication with the host microcontroller using the I2C-bus or SMBus protocols.
• Interrupt Output: Provides an interrupt signal to the microcontroller when a pin's state changes.

Advantages and Disadvantages

Advantages: - Increases the number of available GPIO pins, enabling connection to more external devices. - Flexible configuration options for each pin. - Compatible with popular communication protocols. - Interrupt feature allows efficient event-driven programming.

Disadvantages: - Limited maximum output current may restrict certain applications. - Input capacitance may affect high-speed signal integrity.

Working Principles

The PCA6416APW,118 is designed to expand the number of GPIO pins in a system. It communicates with the host microcontroller through the I2C-bus/SMBus interface. The microcontroller can configure each pin as an input or output and read or write its state accordingly. When a pin's state changes, the interrupt output signals the microcontroller, allowing it to respond promptly.

Detailed Application Field Plans

The PCA6416APW,118 finds applications in various fields, including but not limited to: 1. Embedded Systems: Expanding GPIO capabilities in microcontrollers, facilitating connectivity with peripheral devices such as sensors, actuators, and displays. 2. Industrial Automation: Enabling control and monitoring of multiple devices through a single microcontroller, reducing complexity and cost. 3. Internet of Things (IoT): Supporting GPIO expansion in IoT devices, enhancing their ability to interact with the physical world. 4. Consumer Electronics: Providing additional I/O pins for user interface elements like buttons, LEDs, and touchscreens. 5. Automotive Electronics: Integrating with automotive systems for controlling lights, motors, and other components.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the PCA6416APW,118 are: - MCP23017: 16-Bit I/O Expander with I2C Interface - PCF8574: Remote 8-Bit I/O Expander for I2C-bus - MAX7313: 16-Port I/O Expander with Serial Interface

These alternatives may have different specifications, pin configurations, or additional features. It is recommended to review their datasheets for detailed information.

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