PCA9517AD,118

Product Overview

Category

PCA9517AD,118 belongs to the category of integrated circuits (ICs).

Use

The PCA9517AD,118 is commonly used as a level translating I2C-bus repeater. It provides bidirectional voltage-level translation between low-voltage (down to 0.9V) and higher-voltage (up to 5.5V) I2C-bus or SMBus applications.

Characteristics

• Bidirectional voltage-level translation
• Supports I2C-bus and SMBus protocols
• Wide voltage range: 0.9V to 5.5V
• Low standby current consumption
• High noise immunity
• Compatible with hot insertion
• ESD protection exceeds JESD 22

Package

The PCA9517AD,118 is available in a small outline package (SO8) which consists of eight pins.

Essence

The essence of PCA9517AD,118 lies in its ability to facilitate communication between devices operating at different voltage levels within an I2C-bus or SMBus system.

Packaging/Quantity

The PCA9517AD,118 is typically packaged in reels, with 2500 units per reel.

Specifications

• Supply voltage range: 0.9V to 5.5V
• Operating temperature range: -40°C to +85°C
• Standby current: 1µA (maximum)
• Rise/fall time: 10ns (maximum)
• Maximum bus speed: 400kHz

Pin Configuration

The PCA9517AD,118 has the following pin configuration:

```

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| | --| A0 VCC |-- --| A1 SDA |-- --| EN SCL |-- --| GND OE |-- |___________| ```

Functional Features

• Bidirectional voltage-level translation: Allows communication between devices operating at different voltage levels.
• Enable (EN) pin: Controls the operation of the device, enabling or disabling the level translation function.
• Output enable (OE) pin: Enables or disables the outputs for bus isolation.
• Address pins (A0 and A1): Allow multiple devices to be connected on the same bus.

Advantages and Disadvantages

Advantages

• Wide voltage range support
• Low standby current consumption
• High noise immunity
• Hot insertion compatibility
• ESD protection exceeds industry standards

Disadvantages

• Limited to I2C-bus and SMBus applications
• Maximum bus speed limited to 400kHz

Working Principles

The PCA9517AD,118 operates by monitoring the voltage levels on the SDA and SCL lines of the I2C-bus or SMBus. It translates the logic levels between the low-voltage side and the high-voltage side, allowing seamless communication between devices operating at different voltage levels.

Application Field Plans

The PCA9517AD,118 finds application in various fields where voltage-level translation is required within an I2C-bus or SMBus system. Some potential application areas include: - Consumer electronics - Industrial automation - Automotive systems - Medical devices - Telecommunications

Alternative Models

There are several alternative models available that provide similar functionality to the PCA9517AD,118. Some popular alternatives include: - PCA9306 - TXB0108 - BSS138

These alternative models can be considered based on specific requirements and design constraints.

In conclusion, the PCA9517AD,118 is a versatile integrated circuit used for bidirectional voltage-level translation in I2C-bus and SMBus applications. With its wide voltage range support, low standby current consumption, and high noise immunity, it offers reliable communication between devices operating at different voltage levels. However, its usage is limited to I2C-bus and SMBus protocols, and the maximum bus speed is capped at 400kHz. Nonetheless, the PCA9517AD,118 finds application in various fields such as consumer electronics, industrial automation, automotive systems, medical devices, and telecommunications. Alternative models like PCA9306, TXB0108, and BSS138 can be considered based on specific requirements.