SN74AVCH2T45DCUR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifting and Voltage Translation
• Characteristics: Bi-directional voltage level translator with automatic direction sensing
• Package: VSSOP (Very Small Outline Package)
• Essence: Translates signals between different voltage levels in electronic circuits
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• High-Level Input Voltage: 2.3V to VCCA + 0.3V
• Low-Level Input Voltage: -0.3V to 0.8V
• High-Level Output Voltage: VCCB - 0.3V to VCCB
• Low-Level Output Voltage: 0V to 0.4V
• Maximum Operating Frequency: 100 MHz

Detailed Pin Configuration

The SN74AVCH2T45DCUR has a total of 8 pins: 1. A1: Channel A Data Input/Output 2. GND: Ground 3. B1: Channel B Data Input/Output 4. OE: Output Enable 5. VCCA: Channel A Supply Voltage 6. VCCB: Channel B Supply Voltage 7. B2: Channel B Data Input/Output 8. A2: Channel A Data Input/Output

Functional Features

• Automatic Direction Sensing: The IC detects the direction of data flow and translates the voltage levels accordingly.
• Bi-directional Translation: Allows bidirectional communication between two circuits operating at different voltage levels.
• Wide Supply Voltage Range: Supports voltage translation between 1.65V and 3.6V, making it compatible with various systems.

Advantages

• Simplifies Circuit Design: Eliminates the need for additional level shifting components, reducing complexity and cost.
• Automatic Direction Sensing: Saves effort in manually configuring the direction of voltage translation.
• Wide Supply Voltage Range: Provides flexibility in interfacing circuits with different voltage requirements.

Disadvantages

• Limited Maximum Operating Frequency: The IC is suitable for applications with frequencies up to 100 MHz. Higher frequency applications may require alternative solutions.
• Package Size: The VSSOP package may be challenging to solder or handle for some users.

Working Principles

The SN74AVCH2T45DCUR utilizes a combination of MOSFETs and control logic to perform voltage level translation. The automatic direction sensing feature detects the direction of data flow and configures the internal circuitry accordingly. When the input signal is at a higher voltage level than the target voltage, the IC uses MOSFETs to shift the voltage down. Conversely, when the input signal is at a lower voltage level, the IC shifts the voltage up using MOSFETs.

Detailed Application Field Plans

The SN74AVCH2T45DCUR is commonly used in various electronic systems where voltage translation is required. Some application fields include: 1. Communication Systems: Facilitates communication between devices operating at different voltage levels, such as UART interfaces. 2. Microcontroller Interfacing: Enables connection between microcontrollers running at different voltage levels. 3. Sensor Networks: Allows sensors operating at different voltage levels to communicate with a central processing unit. 4. Battery-Powered Devices: Supports voltage translation between battery-powered circuits and other components in the system.

Detailed and Complete Alternative Models

1. TXB0102: Bi-directional level shifter with similar features and package options.
2. PCA9306: I2C bus voltage level translator with automatic direction sensing.
3. SN74LVC2T45: Bi-directional voltage level translator with a higher maximum operating frequency.

(Note: The above alternative models are provided for reference and may have different specifications and characteristics. It is recommended to consult the respective datasheets for detailed information.)

This entry provides an overview of the SN74AVCH2T45DCUR, a bi-directional voltage level translator IC. It includes basic information, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.