PCA9534BS3,118

Product Overview

Category

PCA9534BS3,118 belongs to the category of integrated circuits (ICs).

Use

It is commonly used for input/output (I/O) expansion in various electronic devices.

Characteristics

• Low-voltage bidirectional I/O port
• 8-bit remote I/O expander for I2C-bus applications
• Compatible with most microcontrollers
• High-speed I2C interface (up to 400 kHz)
• Low standby current consumption
• Schmitt trigger inputs for noise suppression
• Open-drain interrupt output
• ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101

Package

PCA9534BS3,118 is available in a small outline package (SOT96-1), also known as SC-74A.

Essence

The essence of PCA9534BS3,118 lies in its ability to provide additional I/O ports for microcontrollers, enabling the connection of multiple peripheral devices.

Packaging/Quantity

It is typically packaged in reels, with each reel containing a specific quantity of PCA9534BS3,118 ICs. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Supply voltage: 2.3 V to 5.5 V
• Input voltage range: GND to VDD
• Operating temperature range: -40°C to +85°C
• I2C-bus frequency: Up to 400 kHz
• Number of I/O pins: 8

Detailed Pin Configuration

The pin configuration of PCA9534BS3,118 is as follows:

```

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| | | 1 8 | | | | 2 7 | | | | 3 6 | | | | 4 5 | |_______________| ```

Pin Description: 1. SDA: Serial data input/output pin for I2C communication. 2. SCL: Serial clock input pin for I2C communication. 3. A0: Address selection input pin (LSB). 4. A1: Address selection input pin (MSB). 5. RESET: Reset input pin. 6. INT: Interrupt output pin. 7. GND: Ground reference. 8. VDD: Supply voltage input.

Functional Features

• Bidirectional I/O expansion through the I2C-bus interface.
• Individual I/O configuration and control.
• Interrupt capability for efficient event-driven systems.
• Low power consumption in standby mode.
• Noise suppression with Schmitt trigger inputs.

Advantages and Disadvantages

Advantages

• Provides additional I/O ports without requiring extra microcontroller pins.
• Compatible with a wide range of microcontrollers.
• High-speed I2C interface allows for fast data transfer.
• Low standby current consumption helps conserve power.
• ESD protection ensures durability.

Disadvantages

• Limited number of I/O pins (8 in total).
• Requires I2C-bus communication protocol implementation.

Working Principles

PCA9534BS3,118 operates by communicating with a microcontroller through the I2C-bus interface. The microcontroller sends commands to configure and control the I/O pins of PCA9534BS3,118. The bidirectional I/O ports can be individually configured as inputs or outputs. When an interrupt condition occurs, the INT pin is activated, notifying the microcontroller.

Detailed Application Field Plans

PCA9534BS3,118 finds applications in various fields, including but not limited to:

1. Home automation systems: Used for controlling and monitoring devices such as lights, fans, and sensors.
2. Industrial automation: Enables I/O expansion in control panels and PLCs.
3. Automotive electronics: Provides additional I/O ports for vehicle control modules.
4. Internet of Things (IoT) devices: Facilitates connectivity and control of peripheral devices.
5. Consumer electronics: Integrated into products like smart TVs, gaming consoles, and home appliances.

Detailed and Complete Alternative Models

1. PCA9534PW,118
2. PCA9534DB,118
3. PCA9534RGYR
4. PCA9534BS,118
5. PCA9534D,112

These alternative models offer similar functionality and can be considered as substitutes for PCA9534BS3,118.

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