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TC74LCX540FT(EL,M)
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TC74LCX540FT(EL,M)

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Logic Level Shifter
  • Characteristics: Low Voltage, High-Speed, Octal Buffer/Line Driver
  • Package: TSSOP-20
  • Essence: This IC is designed to shift logic levels between different voltage domains.
  • Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

  • Supply Voltage: 1.65V to 3.6V
  • Logic Family: LCX
  • Number of Channels: 8
  • Input/Output Compatibility: TTL, LVTTL, LVCMOS
  • Propagation Delay: 2.5ns (typical)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TC74LCX540FT(EL,M) has a TSSOP-20 package with the following pin configuration:

┌───┬───┐ OE ─┤1 20├ VCC A1 ─┤2 19├ I/O1 A2 ─┤3 18├ I/O2 A3 ─┤4 17├ I/O3 A4 ─┤5 16├ I/O4 A5 ─┤6 15├ I/O5 A6 ─┤7 14├ I/O6 A7 ─┤8 13├ I/O7 GND ─┤9 12├ I/O8 GND ─┤10 11├ GND └───┴───┘

Functional Features

  • Octal buffer/line driver with 3-state outputs.
  • Bidirectional level shifting between different voltage domains.
  • Supports voltage translation between TTL, LVTTL, and LVCMOS logic levels.
  • High-speed operation with low propagation delay.
  • Output enable (OE) pin for controlling the tri-state outputs.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Low power consumption. - High-speed operation enables efficient data transfer. - Compact TSSOP package saves board space.

Disadvantages: - Limited number of channels (8) may not be suitable for applications requiring more inputs/outputs. - Not suitable for high-voltage applications.

Working Principles

The TC74LCX540FT(EL,M) is a logic level shifter that operates by receiving input signals from one voltage domain and translating them to another voltage domain. It utilizes an octal buffer/line driver configuration to provide bidirectional level shifting capability. The output enable (OE) pin controls the tri-state outputs, allowing the device to be easily integrated into bus-oriented systems.

Detailed Application Field Plans

The TC74LCX540FT(EL,M) can be used in various applications where logic level shifting is required. Some potential application fields include:

  1. Microcontroller interfacing with different voltage peripherals.
  2. Communication interfaces between devices operating at different logic levels.
  3. Level translation in battery-powered portable devices.
  4. Data transmission between mixed voltage domains in industrial automation systems.
  5. Signal conditioning in automotive electronics.

Detailed and Complete Alternative Models

  1. SN74LVC8T245PW: Octal Bus Transceiver with 3-State Outputs
  2. CD4504BE: Hex Voltage-Level Shifter for TTL-to-CMOS/CMOS-to-TTL Conversion
  3. 74LVC8T245DB,118: Octal Bus Transceiver with Dual-Enable and 3-State Outputs

These alternative models offer similar functionality and can be considered as alternatives to the TC74LCX540FT(EL,M) depending on specific requirements and availability.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av TC74LCX540FT(EL,M) i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of TC74LCX540FT(EL,M) in technical solutions:

  1. Q: What is TC74LCX540FT(EL,M)? A: TC74LCX540FT(EL,M) is a specific model of a low voltage octal buffer/line driver integrated circuit (IC) manufactured by Toshiba.

  2. Q: What is the operating voltage range of TC74LCX540FT(EL,M)? A: The operating voltage range of TC74LCX540FT(EL,M) is typically between 1.65V and 3.6V.

  3. Q: What is the maximum output current of TC74LCX540FT(EL,M)? A: The maximum output current of TC74LCX540FT(EL,M) is typically around 24mA.

  4. Q: Can TC74LCX540FT(EL,M) be used for level shifting applications? A: Yes, TC74LCX540FT(EL,M) can be used for level shifting as it supports bidirectional voltage translation.

  5. Q: How many input/output pins does TC74LCX540FT(EL,M) have? A: TC74LCX540FT(EL,M) has 8 input/output pins, making it an octal buffer/line driver.

  6. Q: What is the propagation delay of TC74LCX540FT(EL,M)? A: The propagation delay of TC74LCX540FT(EL,M) is typically around 3.7ns.

  7. Q: Is TC74LCX540FT(EL,M) compatible with both CMOS and TTL logic levels? A: Yes, TC74LCX540FT(EL,M) is compatible with both CMOS and TTL logic levels, making it versatile for various applications.

  8. Q: Can TC74LCX540FT(EL,M) be used in high-speed data transmission applications? A: Yes, TC74LCX540FT(EL,M) can be used in high-speed data transmission applications as it has a maximum operating frequency of around 100MHz.

  9. Q: Does TC74LCX540FT(EL,M) have built-in ESD protection? A: Yes, TC74LCX540FT(EL,M) has built-in ESD protection, which helps safeguard the IC against electrostatic discharge.

  10. Q: What package does TC74LCX540FT(EL,M) come in? A: TC74LCX540FT(EL,M) is available in a TSSOP (Thin Shrink Small Outline Package) package, which is compact and suitable for space-constrained designs.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications or application requirements.