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P82B715DR
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P82B715DR

Product Overview

Category

P82B715DR belongs to the category of integrated circuits (ICs).

Use

The P82B715DR is commonly used as a bus extender or buffer for I2C-bus systems.

Characteristics

  • Acts as a voltage level translator between the I2C-bus and the SMBus
  • Supports bidirectional data transfer
  • Provides capacitive isolation between the bus segments
  • Compatible with both Fast Mode (400 kHz) and Standard Mode (100 kHz) I2C-bus systems

Package

P82B715DR is available in a small outline package (SO) format.

Essence

The essence of P82B715DR lies in its ability to extend the range of I2C-bus communication and provide buffering capabilities.

Packaging/Quantity

P82B715DR is typically packaged in reels, containing a specific quantity of ICs per reel. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

  • Supply Voltage: 2.5V to 6V
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Data Rate: 400 kHz
  • Maximum Capacitive Load: 400 pF
  • Number of Pins: 8

Detailed Pin Configuration

  1. VCC: Supply voltage pin
  2. GND: Ground pin
  3. SDA: Serial data line
  4. SCL: Serial clock line
  5. A0: Address input bit 0
  6. A1: Address input bit 1
  7. NC: No connection
  8. EN: Enable input

Functional Features

  • Bidirectional voltage level translation between I2C-bus and SMBus
  • Isolation of bus segments to prevent noise interference
  • Support for both Fast Mode and Standard Mode I2C-bus systems
  • Low power consumption

Advantages and Disadvantages

Advantages

  • Enables long-distance communication in I2C-bus systems
  • Provides buffering capabilities to prevent signal degradation
  • Supports multiple devices on the bus without signal loss

Disadvantages

  • Requires additional components for proper implementation
  • Limited to I2C-bus and SMBus applications

Working Principles

The P82B715DR acts as a voltage level translator between the I2C-bus and the SMBus. It uses a bidirectional buffer to convert the logic levels of the signals, allowing communication between devices operating at different voltage levels. The device also provides capacitive isolation between bus segments, preventing noise interference.

Detailed Application Field Plans

The P82B715DR finds application in various fields where I2C-bus communication needs to be extended over longer distances. Some common application areas include:

  1. Industrial automation systems
  2. Automotive electronics
  3. Telecommunications equipment
  4. Medical devices
  5. Consumer electronics

Detailed and Complete Alternative Models

  1. PCA9306: Bidirectional I2C-bus and SMBus voltage level translator with automatic direction sensing.
  2. TCA9517: Dual bidirectional I2C-bus voltage level translator with configurable voltage levels.
  3. BSS138: N-channel enhancement mode MOSFET used for level shifting applications in I2C-bus systems.

These alternative models offer similar functionality and can be considered as alternatives to the P82B715DR depending on specific requirements.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av P82B715DR i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of P82B715DR in technical solutions:

  1. Q: What is P82B715DR? A: P82B715DR is an I2C bus extender/repeater IC that allows for long-distance communication between I2C devices.

  2. Q: How does P82B715DR extend the I2C bus? A: P82B715DR uses a voltage level shifting technique to extend the I2C bus, allowing for communication over longer distances.

  3. Q: What is the maximum distance that P82B715DR can extend the I2C bus? A: P82B715DR can extend the I2C bus up to 400 meters (or 1200 feet) depending on the capacitance of the cable used.

  4. Q: Can P82B715DR be used with any I2C device? A: Yes, P82B715DR is compatible with all standard I2C devices and can be used in any I2C bus application.

  5. Q: Does P82B715DR require external power? A: Yes, P82B715DR requires an external power supply to operate. It has a wide operating voltage range of 2.7V to 5.5V.

  6. Q: Can multiple P82B715DRs be cascaded together? A: Yes, multiple P82B715DRs can be cascaded together to further extend the I2C bus and increase the number of devices that can be connected.

  7. Q: Does P82B715DR support clock stretching? A: Yes, P82B715DR supports clock stretching, which allows for proper synchronization between the master and slave devices.

  8. Q: Can P82B715DR be used in a multi-master I2C system? A: Yes, P82B715DR can be used in a multi-master I2C system, allowing for communication between multiple masters and slaves.

  9. Q: Does P82B715DR introduce any additional latency or delay in the I2C communication? A: P82B715DR introduces minimal latency or delay in the I2C communication, making it suitable for real-time applications.

  10. Q: Are there any specific design considerations when using P82B715DR? A: It is important to consider factors such as cable length, capacitance, and termination resistors when designing with P82B715DR to ensure reliable communication on the extended I2C bus.

Please note that these answers are general and may vary depending on the specific application and implementation of P82B715DR.