DS2484Q+U

Product Overview

• Category: Integrated Circuit
• Use: I2C to 1-Wire Bridge
• Characteristics: High-speed I2C-to-1-Wire bridge, small package size, low power consumption
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: The DS2484Q+U is a versatile integrated circuit that acts as a bridge between I2C and 1-Wire communication protocols.
• Packaging/Quantity: Available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Operating Voltage: 2.3V to 5.5V
• I2C Bus Speed: Up to 400kHz
• 1-Wire Speed: Standard mode (15.4kbps), Overdrive mode (125kbps)
• Temperature Range: -40°C to +85°C
• Addressing: Software programmable I2C address
• Reset Pulse Width: 480μs minimum
• Standby Current: 1μA maximum
• Package Dimensions: 150mil SOIC (3.9mm x 4.9mm)

Pin Configuration

The DS2484Q+U features an 8-pin SOIC package with the following pin configuration:

1. VDD: Power supply voltage input
2. GND: Ground reference
3. SDA: I2C serial data line
4. SCL: I2C serial clock line
5. OW: 1-Wire data line
6. AD0: Address bit 0 (I2C address selection)
7. AD1: Address bit 1 (I2C address selection)
8. RSTZ: Active-low reset input

Functional Features

• Acts as a bridge between I2C and 1-Wire communication protocols
• Supports standard and overdrive 1-Wire speeds
• Software programmable I2C address for easy integration into existing systems
• Provides power to connected 1-Wire devices
• Supports multiple DS2484Q+U devices on the same I2C bus
• Low standby current for power-efficient operation

Advantages and Disadvantages

Advantages: - Enables seamless communication between I2C and 1-Wire devices - Small package size allows for space-constrained applications - Wide operating voltage range for compatibility with various systems - Low power consumption for energy-efficient designs

Disadvantages: - Limited to I2C and 1-Wire communication protocols - Requires additional components for complete system integration

Working Principles

The DS2484Q+U acts as a translator between I2C and 1-Wire protocols. It receives I2C commands from the master device and converts them into corresponding 1-Wire signals. The integrated circuit also provides power to connected 1-Wire devices, eliminating the need for an external power source.

Detailed Application Field Plans

The DS2484Q+U finds applications in various fields, including:

1. Home automation systems
2. Industrial control and monitoring systems
3. Internet of Things (IoT) devices
4. Sensor networks
5. Smart energy management systems

Alternative Models

Here are some alternative models that offer similar functionality:

1. DS2482-100: I2C to 1-Wire bridge with 8-pin SOIC package
2. DS2482S-100: I2C to 1-Wire bridge with 6-pin SOT23 package
3. DS2484R+T&R: I2C to 1-Wire bridge with 8-pin TDFN package

These alternative models provide options for different package sizes and pin configurations, allowing for flexibility in system design.

In conclusion, the DS2484Q+U is a versatile integrated circuit that serves as an I2C to 1-Wire bridge. With its small package size, low power consumption, and support for multiple devices, it finds applications in various fields such as home automation, industrial control, and IoT devices.