SN74LVTH540DBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Driver
• Characteristics: Low Voltage, High-Speed, Tri-State
• Package: SSOP-20
• Essence: Logic Level Shifter
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• High-Level Input Voltage: 2.0V
• Low-Level Input Voltage: 0.8V
• High-Level Output Voltage: VCC - 0.4V
• Low-Level Output Voltage: 0.4V
• Maximum Operating Frequency: 200MHz
• Propagation Delay Time: 1.5ns
• Output Drive Capability: ±24mA

Pin Configuration

The SN74LVTH540DBR has a total of 20 pins arranged as follows:

+--\/--+ OE1 |1 20| VCC A1 |2 19| B1 Y1 |3 18| A2 GND |4 17| B2 Y2 |5 16| OE2 A3 |6 15| B3 B3 |7 14| Y3 OE3 |8 13| A4 A4 |9 12| B4 B4 |10 11| Y4 +------+

Functional Features

• Tri-State Outputs: The SN74LVTH540DBR features tri-state outputs, allowing the outputs to be disabled and put into a high-impedance state.
• Voltage Level Shifting: This IC can shift logic levels from one voltage domain to another, making it suitable for interfacing between different voltage systems.
• High-Speed Operation: With a maximum operating frequency of 200MHz, this buffer/driver provides fast signal propagation.

Advantages and Disadvantages

Advantages: - Low voltage operation allows for compatibility with various systems. - Tri-state outputs provide flexibility in controlling signal flow. - High-speed operation enables efficient data transmission.

Disadvantages: - Limited output drive capability may not be suitable for driving heavy loads. - The SSOP-20 package may require careful handling during assembly.

Working Principles

The SN74LVTH540DBR is designed to buffer and drive signals between different voltage domains. It operates by receiving input signals on the A1-A4 pins and providing corresponding output signals on the Y1-Y4 pins. The OE1-OE3 pins control the tri-state outputs, enabling or disabling the signal flow. The IC utilizes CMOS technology to achieve low power consumption and high-speed operation.

Detailed Application Field Plans

The SN74LVTH540DBR is commonly used in various applications, including:

1. Microcontroller Interfacing: It can be used to interface microcontrollers operating at different voltage levels.
2. Memory Systems: This IC is suitable for buffering address and data lines in memory systems.
3. Communication Interfaces: It can be employed in communication interfaces to convert logic levels between different devices.
4. Industrial Automation: The SN74LVTH540DBR finds application in industrial automation systems for signal level conversion.

Detailed and Complete Alternative Models

1. SN74LVC540A: Similar to SN74LVTH540DBR but operates at a lower voltage range (1.65V to 3.6V).
2. SN74LV1T34: Single-channel buffer/driver with a smaller package size (SOT-23).

These alternative models offer similar functionality and can be considered based on specific requirements.

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