PCA9691T/1,518

Product Overview

Category

The PCA9691T/1,518 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for controlling and expanding the number of input/output (I/O) ports in electronic devices.

Characteristics

• The PCA9691T/1,518 is a 16-bit I/O expander with an I2C-bus interface.
• It provides 16 I/O pins that can be individually configured as inputs or outputs.
• The device operates at a voltage range of 2.3V to 5.5V, making it suitable for various applications.
• It offers high-speed I2C-bus communication, allowing for efficient data transfer.
• The PCA9691T/1,518 has built-in noise filtering capabilities, ensuring reliable performance in noisy environments.

Package

The PCA9691T/1,518 is available in a small outline package (SOP) format.

Essence

The essence of this product lies in its ability to expand the number of I/O ports in electronic systems, providing flexibility and increased functionality.

Packaging/Quantity

The PCA9691T/1,518 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 2.3V to 5.5V
• Number of I/O Pins: 16
• Communication Interface: I2C-bus
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOP

Detailed Pin Configuration

The PCA9691T/1,518 features a 24-pin SOP package with the following pin configuration:

1. SDA (Serial Data)
2. SCL (Serial Clock)
3. A0 (Address Bit 0)
4. A1 (Address Bit 1)
5. A2 (Address Bit 2)
6. GND (Ground)
7. P00 (I/O Pin 0)
8. P01 (I/O Pin 1)
9. P02 (I/O Pin 2)
10. P03 (I/O Pin 3)
11. P04 (I/O Pin 4)
12. P05 (I/O Pin 5)
13. P06 (I/O Pin 6)
14. P07 (I/O Pin 7)
15. P10 (I/O Pin 8)
16. P11 (I/O Pin 9)
17. P12 (I/O Pin 10)
18. P13 (I/O Pin 11)
19. P14 (I/O Pin 12)
20. P15 (I/O Pin 13)
21. P16 (I/O Pin 14)
22. P17 (I/O Pin 15)
23. VDD (Supply Voltage)
24. NC (No Connection)

Functional Features

• I2C-bus interface for easy integration into existing systems.
• Individual pin configuration as input or output, providing flexibility.
• Noise filtering capabilities for reliable performance in noisy environments.
• High-speed data transfer for efficient communication.

Advantages and Disadvantages

Advantages

• Compact size and low power consumption.
• Wide operating voltage range allows for compatibility with various systems.
• Easy integration into existing designs due to the I2C-bus interface.
• Noise filtering ensures reliable performance in challenging environments.

Disadvantages

• Limited number of I/O pins may not be sufficient for complex applications requiring a large number of ports.
• Requires knowledge of I2C-bus communication protocol for proper implementation.

Working Principles

The PCA9691T/1,518 operates by receiving commands and data through the I2C-bus interface. It can be configured to function as either an input or output port for each individual pin. The device communicates with the microcontroller or host system using the I2C-bus protocol, allowing for control and monitoring of the I/O pins.

Detailed Application Field Plans

The PCA9691T/1,518 finds applications in various fields, including:

1. Industrial automation: Used for controlling and monitoring multiple devices and sensors.
2. Automotive electronics: Enables expansion of I/O ports for vehicle control systems.
3. Consumer electronics: Provides additional I/O capabilities for smart home devices and appliances.
4. Internet of Things (IoT): Facilitates connectivity and control of IoT devices through expanded I/O ports.

Detailed and Complete Alternative Models

1. PCA9535PW,118
2. MCP23017-E/SO
3. MAX7313ATG+
4. TCA6416ARGTR
5. PCF8574APW,112

These alternative models offer similar functionality and can be considered as alternatives to the PCA9691T/1,518.

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