PCA9512BDP,118

Product Overview

Category

PCA9512BDP,118 belongs to the category of I2C bus repeaters and level shifters.

Use

It is used to extend the range of I2C bus communication and enable communication between devices operating at different voltage levels.

Characteristics

• Supports bidirectional data transfer between low-voltage and high-voltage I2C buses.
• Provides level shifting for both clock (SCL) and data (SDA) lines.
• Supports I2C Fast Mode (400 kHz) and Standard Mode (100 kHz).
• Low standby current consumption.
• Compatible with 3.3V and 5V systems.

Package

PCA9512BDP,118 is available in a small outline package (SO8) which provides ease of integration into various applications.

Essence

The essence of PCA9512BDP,118 lies in its ability to bridge the gap between I2C buses operating at different voltage levels, ensuring seamless communication between devices.

Packaging/Quantity

PCA9512BDP,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
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 400 kHz
• Standby Current: 1 µA (typical)

Detailed Pin Configuration

PCA9512BDP,118 features an 8-pin SOIC package with the following pin configuration:

1. SDA_IN: Input for low-voltage I2C data line.
2. SCL_IN: Input for low-voltage I2C clock line.
3. GND: Ground reference.
4. OE: Output enable pin.
5. SDA_OUT: Output for high-voltage I2C data line.
6. SCL_OUT: Output for high-voltage I2C clock line.
7. VCC: Supply voltage input.
8. NC: No connection.

Functional Features

• Bidirectional level shifting between low-voltage and high-voltage I2C buses.
• Automatic direction sensing and control.
• Supports multiple devices on the high-voltage side.
• Provides buffering and filtering to improve signal integrity.

Advantages and Disadvantages

Advantages

• Enables communication between devices operating at different voltage levels.
• Supports high-speed I2C communication.
• Low standby current consumption.
• Easy integration into various applications.

Disadvantages

• Limited to I2C bus communication only.
• Requires careful consideration of voltage compatibility between devices.

Working Principles

PCA9512BDP,118 utilizes a bidirectional voltage-level translation technique to enable communication between low-voltage and high-voltage I2C buses. It automatically detects the direction of data flow and adjusts the voltage levels accordingly. The device acts as a buffer, ensuring reliable signal transmission and reception between the two buses.

Detailed Application Field Plans

PCA9512BDP,118 finds application in various scenarios where I2C communication is required between devices operating at different voltage levels. Some potential application fields include:

1. Industrial automation systems
2. Consumer electronics
3. Automotive electronics
4. Medical devices
5. Internet of Things (IoT) devices

Detailed and Complete Alternative Models

• PCA9306DCUR: Dual bidirectional I2C-bus and SMBus voltage-level translator
• TXB0108PWR: 8-bit bidirectional voltage-level translator with automatic direction sensing

These alternative models offer similar functionality and can be considered as alternatives to PCA9512BDP,118 depending on specific requirements and constraints.

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