PCA9516D,112

Product Overview

Category: Integrated Circuit (IC)

Use: Level shifting and translating between different voltage levels in I2C bus systems.

Characteristics: - Bidirectional voltage level translator - Supports I2C Fast Mode Plus (Fm+) with speeds up to 1 MHz - Compatible with both 2.5V and 3.3V supply voltages - Provides bidirectional buffering for SDA and SCL lines - Allows voltage translation between 0.9V and 5.5V

Package: SOIC (Small Outline Integrated Circuit)

Essence: The PCA9516D,112 is an IC designed to facilitate communication between devices operating at different voltage levels within an I2C bus system.

Packaging/Quantity: The PCA9516D,112 is available in a standard SOIC package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 2.5V to 3.3V
• Operating Temperature Range: -40°C to +85°C
• Maximum Data Rate: 1 MHz
• Number of Pins: 8
• Input/Output Compatibility: 0.9V to 5.5V

Pin Configuration

The PCA9516D,112 has the following pin configuration:

```

---

| | --| VCC1 GND|-- Pin 1: Ground (GND) --| SDA1 SCL|-- Pin 2: Serial Data Line (SDA1) --| OE EN |-- Pin 3: Output Enable (OE) / Enable (EN) --| SDA2 SCL|-- Pin 4: Serial Data Line (SDA2) --| VCC2 VREF|-- Pin 5: Reference Voltage (VREF) --| NC SDA3|-- Pin 6: Serial Data Line (SDA3) --| NC SCL3|-- Pin 7: Serial Clock Line (SCL3) --| GND VCC3|-- Pin 8: Supply Voltage (VCC3) |___________| ```

Functional Features

• Bidirectional voltage level translation between different I2C bus voltages
• Automatic direction sensing and control
• Provides bidirectional buffering for SDA and SCL lines
• Supports multiple devices on the same I2C bus with different supply voltages

Advantages and Disadvantages

Advantages: - Enables communication between devices operating at different voltage levels within an I2C bus system - Supports high-speed data transfer up to 1 MHz - Compatible with both 2.5V and 3.3V supply voltages - Automatic direction sensing simplifies system design

Disadvantages: - Limited to voltage translation between 0.9V and 5.5V - Requires careful consideration of power supply requirements for proper operation

Working Principles

The PCA9516D,112 is designed to facilitate communication between devices operating at different voltage levels within an I2C bus system. It automatically senses the direction of data flow and adjusts the voltage levels accordingly. The bidirectional buffering ensures that the signals are properly translated between the different voltage domains.

Detailed Application Field Plans

The PCA9516D,112 can be used in various applications where voltage level translation is required within an I2C bus system. Some potential application fields include: - Consumer electronics - Industrial automation - Automotive systems - Medical devices - Telecommunications equipment

Alternative Models

Here are some alternative models that provide similar functionality to the PCA9516D,112: - PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator - TXB0108: 8-bit bidirectional voltage-level translator with automatic direction sensing

These alternative models can be considered based on specific application requirements and compatibility with the existing system.

In conclusion, the PCA9516D,112 is an integrated circuit designed for level shifting and translating between different voltage levels in I2C bus systems. It offers bidirectional voltage translation, supports high-speed data transfer, and is compatible with multiple supply voltages. The automatic direction sensing and buffering features simplify system design. However, it has limitations in terms of voltage range and power supply considerations. It finds applications in various fields such as consumer electronics, industrial automation, automotive systems, medical devices, and telecommunications equipment. Alternative models like PCA9306 and TXB0108 can also be considered for similar functionality.