LTC4313IDD-2#PBF

Product Overview

Category

The LTC4313IDD-2#PBF belongs to the category of I2C bus multiplexers and switches.

Use

It is primarily used for managing multiple I2C devices in a system, allowing them to communicate with a single I2C bus.

Characteristics

• Supports standard-mode (100kHz) and fast-mode (400kHz) I2C buses.
• Provides bidirectional buffering and level shifting between the I2C bus segments.
• Features automatic input/output (I/O) port direction sensing.
• Supports hot-swappable I2C buses.
• Operates from a wide supply voltage range of 1.6V to 5.5V.

Package

The LTC4313IDD-2#PBF comes in a 10-lead DFN (Dual Flat No-Lead) package.

Essence

The essence of the LTC4313IDD-2#PBF is its ability to simplify I2C bus management by enabling multiple devices to share a single bus.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• I2C Bus Compatibility: Standard-mode (100kHz), Fast-mode (400kHz)
• Operating Temperature Range: -40°C to +85°C
• Package Type: 10-lead DFN

Detailed Pin Configuration

1. SDA1: I2C Data Input/Output for Bus 1
2. SCL1: I2C Clock Input for Bus 1
3. EN1: Enable Input for Bus 1
4. SDA2: I2C Data Input/Output for Bus 2
5. SCL2: I2C Clock Input for Bus 2
6. EN2: Enable Input for Bus 2
7. GND: Ground
8. VCC: Supply Voltage
9. ADDR: Address Input
10. NC: No Connection

Functional Features

• Bidirectional buffering and level shifting between I2C bus segments.
• Automatic I/O port direction sensing eliminates the need for external control signals.
• Supports hot-swapping of I2C buses without disruption.
• Provides voltage translation between different supply voltages.

Advantages and Disadvantages

Advantages

• Simplifies I2C bus management in systems with multiple devices.
• Enables efficient sharing of a single I2C bus among multiple devices.
• Supports different I2C bus speeds for compatibility with various devices.
• Offers automatic direction sensing, reducing the need for additional control signals.

Disadvantages

• Limited to 10-lead DFN package, which may not be suitable for all applications.
• Requires careful consideration of address assignment to avoid conflicts in multi-device setups.

Working Principles

The LTC4313IDD-2#PBF operates by buffering and level shifting the I2C bus signals between multiple bus segments. It automatically senses the direction of the I/O ports, eliminating the need for external control signals. The device allows bidirectional communication between the connected I2C devices while maintaining signal integrity and voltage compatibility.

Detailed Application Field Plans

The LTC4313IDD-2#PBF finds applications in various scenarios where multiple I2C devices need to communicate through a single bus. Some potential application fields include:

1. Embedded Systems: Allows multiple sensors, actuators, and other peripherals to share a common I2C bus, simplifying system design and reducing wiring complexity.
2. Industrial Automation: Facilitates communication between multiple I2C-based industrial sensors, controllers, and modules, enabling efficient data exchange and control.
3. Consumer Electronics: Enables seamless integration of multiple I2C devices, such as displays, touch panels, and audio codecs, in smartphones, tablets, and other consumer electronic devices.

Detailed and Complete Alternative Models

1. LTC4314IDD-2#PBF: Similar to LTC4313IDD-2#PBF but with additional features like bus disconnect and stuck bus recovery.
2. PCA9548APW,118: An 8-channel I2C bus switch with similar functionality but a different package and pin configuration.
3. TCA9548A: A multiplexer that allows up to 8 I2C buses to be controlled by a single master device.

These alternative models offer similar capabilities to the LTC4313IDD-2#PBF and can be considered based on specific application requirements.

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