PCA9517AD,112

Product Overview

Category: Integrated Circuit (IC)

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

Characteristics: - Bidirectional voltage level translator - Supports I2C Fast Mode Plus (Fm+) with speeds up to 1 MHz - Provides bidirectional buffering for SDA and SCL lines - Compatible with both 3.3V and 5V systems - Allows voltage translation between two different supply voltages - Supports hot insertion - Low standby current consumption

Package: SOIC (Small Outline Integrated Circuit)

Essence: The PCA9517AD,112 is an IC that enables voltage level shifting and translation in I2C bus applications, allowing communication between devices operating at different voltage levels.

Packaging/Quantity: The PCA9517AD,112 is available in a standard SOIC package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 2.3V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Data Rate: 1 MHz
• Standby Current: 10 µA (typical)
• Package Type: SOIC-8

Pin Configuration

The PCA9517AD,112 has the following pin configuration:

___________ SDA | 1 8 | VCC SCL | 2 7 | OE# GND | 3 6 | SDAOUT SDAIN | 4 5 | SCLIN |__________|

Functional Features

• Bidirectional voltage level shifting: Allows communication between devices operating at different voltage levels.
• Bidirectional buffering: Provides buffering for both SDA and SCL lines, ensuring proper signal integrity.
• Hot insertion support: Allows the device to be inserted or removed from an active I2C bus without causing disruption.
• Compatibility with 3.3V and 5V systems: Can be used in systems operating at either voltage level.

Advantages and Disadvantages

Advantages: - Supports high-speed data transfer up to 1 MHz. - Low standby current consumption helps conserve power. - Compatible with a wide range of supply voltages. - Enables communication between devices with different voltage requirements.

Disadvantages: - Limited to I2C bus applications and may not be suitable for other communication protocols. - Requires careful consideration of voltage levels and compatibility to avoid potential issues.

Working Principles

The PCA9517AD,112 operates by monitoring the voltage levels on the SDAIN and SCLIN pins and translating them to the corresponding voltage levels on the SDAOUT and SCLOUT pins. It uses internal circuitry to ensure bidirectional voltage translation while maintaining signal integrity.

Detailed Application Field Plans

The PCA9517AD,112 can be used in various applications where voltage level shifting is required in I2C bus communication. Some potential application fields include:

1. Embedded Systems: Enable communication between microcontrollers operating at different voltage levels.
2. Industrial Automation: Facilitate communication between sensors, actuators, and control systems with varying voltage requirements.
3. Consumer Electronics: Connect devices such as smartphones, tablets, and displays that operate at different voltage levels.
4. Automotive Electronics: Support communication between different modules and subsystems within a vehicle.

Detailed and Complete Alternative Models

1. PCA9306: Similar bidirectional I2C bus voltage level translator with automatic direction sensing.
2. TXB0108: Eight-channel bidirectional voltage-level translator with automatic direction sensing.
3. BSS138: Single-channel bidirectional voltage-level translator for I2C and other applications.

These alternative models offer similar functionality to the PCA9517AD,112 and can be considered as alternatives based on specific requirements and constraints.

Word count: 511 words