Encyclopedia Entry: 74AVC2T45GD-Q100H

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Signal Level Shifter
• Characteristics: Bi-directional, Dual-bit, Voltage Level Translation
• Package: QFN (Quad Flat No-leads)
• Essence: Translates voltage levels between two different logic families
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Logic Family A Voltage Range: 1.2V to 3.6V
• Logic Family B Voltage Range: 1.65V to 5.5V
• Maximum Data Rate: 400 Mbps
• Number of Channels: 2
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The 74AVC2T45GD-Q100H IC has the following pin configuration:

┌───┐ OE1 │1 8│ VCCB I/O1 │2 7│ GND I/O2 │3 6│ OE2 VCCA │4 5│ I/O3 └───┘

Functional Features

• Bi-directional voltage level translation between Logic Family A and Logic Family B
• Supports bidirectional data flow with automatic direction sensing
• Low power consumption
• High-speed data transmission up to 400 Mbps
• ESD protection for robustness

Advantages

• Wide supply voltage range allows compatibility with various systems
• Automatic direction sensing simplifies system design
• Small package size saves board space
• High-speed data transmission enables efficient communication
• ESD protection ensures reliability in harsh environments

Disadvantages

• Limited to translating voltage levels between Logic Family A and Logic Family B
• Not suitable for applications requiring translation between different logic families

Working Principles

The 74AVC2T45GD-Q100H is a voltage level shifter that allows bidirectional translation of digital signals between two different logic families, referred to as Logic Family A and Logic Family B. It operates by sensing the direction of data flow and automatically adjusting the voltage levels accordingly.

When Logic Family A is driving the bus, the IC translates the low-voltage signals from Logic Family A to the higher voltage levels required by Logic Family B. Conversely, when Logic Family B is driving the bus, the IC translates the high-voltage signals from Logic Family B to the lower voltage levels compatible with Logic Family A.

This bidirectional voltage level translation enables seamless communication between systems operating at different voltage levels, eliminating the need for additional circuitry or level shifters.

Detailed Application Field Plans

The 74AVC2T45GD-Q100H is commonly used in various applications where voltage level translation is required between different logic families. Some specific application fields include:

1. Microcontrollers: Facilitates communication between microcontrollers operating at different voltage levels.
2. Interface Modules: Enables compatibility between different interface modules, such as UART, SPI, or I2C, with varying voltage requirements.
3. Sensor Networks: Allows integration of sensors with different voltage levels into a single network.
4. Battery-Powered Devices: Supports voltage level translation in portable devices with limited power supply options.
5. Industrial Automation: Provides voltage level translation in industrial automation systems with mixed logic families.

Detailed and Complete Alternative Models

1. SN74LVC2T45: Similar dual-bit voltage level translator with comparable specifications.
2. TXS0102: Bi-directional voltage level shifter with 2 channels and support for different logic families.
3. PCA9306: I2C-bus voltage level translator with automatic direction sensing.

These alternative models offer similar functionality and can be considered as substitutes for the 74AVC2T45GD-Q100H in various applications.

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