74LVT240PW,112

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics:
  • Low Voltage TTL (LVT) Technology
  • Octal Buffer/Line Driver with 3-State Outputs
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic level translation between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: VCC - 0.4V
• Low-Level Output Voltage: 0.4V
• Maximum Input Current: ±10mA
• Maximum Output Current: ±32mA
• Propagation Delay Time: 3.7ns (max) at 3.3V supply
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74LVT240PW,112 IC has a total of 20 pins arranged in a TSSOP package. The pin configuration is as follows:

+---+--+---+ OE1 |1 +--+ 20| VCC A1 |2 19| B1 A2 |3 18| B2 A3 |4 17| B3 A4 |5 74LVT 16| B4 A5 |6 240PW 15| B5 A6 |7 14| B6 A7 |8 13| B7 A8 |9 12| B8 GND |10 11| OE2 +----------+

Functional Features

• Logic level translation: The 74LVT240PW,112 is designed to translate logic levels between different voltage domains. It can convert signals from a low-voltage domain (1.2V to 3.6V) to a higher-voltage domain (up to VCC).
• Octal buffer/line driver: It provides eight independent buffers with 3-state outputs, allowing bidirectional communication between different voltage systems.
• Output enable control: The OE1 and OE2 pins control the output state of the device. When OE1 or OE2 is high, the outputs are in the high-impedance state, effectively disconnecting the input and output sides.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Fast propagation delay time ensures efficient signal translation. - 3-state outputs provide flexibility in bidirectional communication.

Disadvantages: - Limited maximum output current may restrict its use in high-current applications. - TSSOP package may require careful handling during assembly.

Working Principles

The 74LVT240PW,112 uses LVT technology to achieve logic level translation. It operates by comparing the input voltage levels with the reference voltages generated internally. Based on this comparison, the appropriate output voltage levels are produced to match the target voltage domain.

Detailed Application Field Plans

The 74LVT240PW,112 is commonly used in various applications where logic level translation is required. Some typical application fields include: - Microcontroller interfacing: It enables communication between microcontrollers operating at different voltage levels. - Mixed voltage system integration: It facilitates the integration of components with different voltage requirements into a single system. - Sensor interfaces: It allows sensors with different voltage outputs to interface with microcontrollers or other digital devices.

Detailed and Complete Alternative Models

Some alternative models that can be considered for logic level translation are: - 74LVC240A: Similar functionality but operates at a wider supply voltage range (1.2V to 5.5V). - SN74LVC1T45: Single-bit level translator with bidirectional voltage translation capability. - TXB0108: 8-bit bidirectional voltage-level translator with automatic direction sensing.

Note: The above alternatives are just a few examples, and there are many other ICs available in the market for logic level translation.

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