PCA9534D,118

Product Overview

Category

PCA9534D,118 belongs to the category of integrated circuits (ICs).

Use

The PCA9534D,118 is commonly used as an I/O expander for microcontrollers. It provides additional input/output pins, allowing the microcontroller to interface with a larger number of devices.

Characteristics

• I2C-bus interface compatibility
• 8-bit remote I/O port with interrupt capability
• Low standby current consumption
• Schmitt trigger inputs
• Open-drain interrupt output
• Polarity inversion register
• Internal power-on reset

Package

The PCA9534D,118 is available in a small outline package (SOT96-1) which consists of 16 pins.

Essence

The essence of PCA9534D,118 lies in its ability to expand the input/output capabilities of microcontrollers, enabling them to control and communicate with a greater number of external devices.

Packaging/Quantity

The PCA9534D,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
• Input voltage range: 0V to VDD
• Output voltage range: 0V to VDD
• Maximum output current: 25mA per channel
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The PCA9534D,118 has a total of 16 pins, each serving a specific purpose. The pin configuration is as follows:

1. SDA: Serial data input/output pin for I2C communication.
2. SCL: Serial clock input pin for I2C communication.
3. A0: Address selection bit 0.
4. A1: Address selection bit 1.
5. A2: Address selection bit 2.
6. INT: Interrupt output pin.
7. P0-P7: General-purpose I/O pins.

Functional Features

I2C-bus Interface Compatibility

The PCA9534D,118 is compatible with the I2C-bus interface, allowing for easy integration into existing systems.

Interrupt Capability

The device supports interrupt functionality, providing a means for the microcontroller to be notified of specific events or changes in the input/output status.

Low Standby Current Consumption

The PCA9534D,118 has low standby current consumption, making it suitable for battery-powered applications where power efficiency is crucial.

Schmitt Trigger Inputs

Schmitt trigger inputs ensure reliable and stable operation, even in the presence of noise or signal fluctuations.

Open-Drain Interrupt Output

The open-drain interrupt output allows for flexible connection to external devices, enabling efficient communication and synchronization.

Polarity Inversion Register

The polarity inversion register allows for the inversion of input/output logic levels, providing flexibility in interfacing with different devices.

Internal Power-On Reset

The internal power-on reset feature ensures proper initialization and reliable operation upon power-up.

Advantages and Disadvantages

Advantages

• Easy integration with microcontrollers through I2C-bus interface compatibility.
• Provides additional I/O ports, expanding the capabilities of microcontrollers.
• Low standby current consumption for power-efficient applications.
• Reliable operation with Schmitt trigger inputs and internal power-on reset.
• Flexible interrupt capability for event-driven systems.

Disadvantages

• Limited maximum output current per channel (25mA).
• Requires additional components for I2C communication (pull-up resistors, etc.).

Working Principles

The PCA9534D,118 operates by communicating with the microcontroller through the I2C-bus interface. It receives commands and data from the microcontroller and controls the input/output pins accordingly. The device can be configured to generate interrupts based on specific events or changes in the input/output status, providing a means for the microcontroller to respond promptly.

Detailed Application Field Plans

The PCA9534D,118 finds applications in various fields where additional I/O ports are required. Some potential application areas include:

1. Home automation systems: Controlling and monitoring multiple devices such as lights, sensors, and actuators.
2. Industrial automation: Interfacing with sensors, switches, and control devices in manufacturing processes.
3. Automotive electronics: Expanding the I/O capabilities of automotive control units for enhanced functionality.
4. Internet of Things (IoT): Enabling communication between microcontrollers and IoT devices for data collection and control.

Detailed and Complete Alternative Models

• PCA9535D,118
• MCP23017-E/SP
• MAX7313ATG+
• PCF8574AP

These alternative models offer similar functionality and can be considered as alternatives to the PCA9534D,118 depending on specific requirements and compatibility with existing systems.

In conclusion, the PCA953