PCA9534BS,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: GPIO Expander
• Characteristics:
  • Low-voltage 8-bit I2C-bus and SMBus I/O expander
  • 5 V tolerant inputs for interfacing with a wide range of devices
  • Open-drain interrupt output
  • Internal power-on reset
• Package: TSSOP16
• Essence: The PCA9534BS,118 is a versatile GPIO expander IC that allows for easy expansion of general-purpose input/output (GPIO) pins using the I2C-bus or SMBus interface.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

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

Detailed Pin Configuration

The PCA9534BS,118 has a total of 16 pins arranged as follows:

```

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| | | 1 2 3 | | | | 4 5 6 | | | | 7 8 9 | | | | 10 11 12 | | | | 13 14 15 | |_____________| ```

Pin Description: 1. SDA: Serial Data Input/Output pin for I2C-bus communication. 2. SCL: Serial Clock Input pin for I2C-bus communication. 3. A0: Address Select Input bit 0. 4. A1: Address Select Input bit 1. 5-12: I/O0-I/O7: General-purpose Input/Output pins. 13: INT: Open-drain interrupt output pin. 14-16: GND: Ground pins.

Functional Features

• The PCA9534BS,118 provides 8 GPIO pins that can be individually configured as inputs or outputs.
• It supports a wide range of input/output voltage levels, making it compatible with various devices.
• The open-drain interrupt output allows for efficient event-driven communication.
• Internal power-on reset ensures reliable operation during power-up.

Advantages and Disadvantages

Advantages: - Easy expansion of GPIO pins using the I2C-bus or SMBus interface. - Wide input/output voltage compatibility. - Efficient interrupt-driven communication.

Disadvantages: - Limited number of GPIO pins (8 in total).

Working Principles

The PCA9534BS,118 operates by communicating with a microcontroller or host device through the I2C-bus or SMBus interface. The microcontroller sends commands to configure the GPIO pins as inputs or outputs and can read or write their states accordingly. The open-drain interrupt output can be used to notify the microcontroller of specific events or changes on the GPIO pins.

Detailed Application Field Plans

The PCA9534BS,118 finds applications in various fields, including but not limited to: - Industrial automation - Consumer electronics - Internet of Things (IoT) devices - Robotics - Automotive systems

Detailed and Complete Alternative Models

Some alternative models to the PCA9534BS,118 include: - PCA9534PW,112 - PCA9534DB,118 - PCA9534RGYR - PCA9534DWR,112

These alternative models offer similar functionality and can be chosen based on specific requirements and availability.

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