74LCX240FT(AE)

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gate
• Characteristics: Low Voltage, Fast CMOS Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs
• Package: TSSOP-20
• Essence: Buffer/Line Driver
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.3V to 3.6V
• High-Speed Operation: tPD = 4.1ns (typ) at VCC = 3.3V
• Inputs and Outputs are 5V Tolerant
• Power-Off High-Impedance Inputs and Outputs
• Overvoltage Tolerant Inputs Facilitate 5V to 3V Translation
• Bus Hold on Data Inputs Eliminates the Need for External Pull-Up/Pull-Down Resistors
• Supports Live Insertion and Withdrawal
• Latch-Up Performance Exceeds 500mA Per JESD 17

Pin Configuration

+---+--+---+ OE -|1 +--+ 20|- VCC A1 -|2 19|- B1 A2 -|3 18|- B2 A3 -|4 17|- B3 A4 -|5 74LCX 16|- B4 A5 -|6 240FT 15|- B5 A6 -|7 (AE) 14|- B6 A7 -|8 13|- B7 GND -|9 12|- B8 Y1 -|10 11|- Y2 +-----------+

Functional Features

• Octal Buffer/Line Driver with 3-State Outputs
• Inputs and Outputs are 5V Tolerant, allowing seamless integration with both 3.3V and 5V systems.
• Power-Off High-Impedance Inputs and Outputs ensure minimal power consumption when not in use.
• Overvoltage Tolerant Inputs enable easy translation between 5V and 3V logic levels.
• Bus Hold on Data Inputs eliminates the need for external pull-up/pull-down resistors, simplifying circuit design.
• Supports live insertion and withdrawal, enabling hot-swapping of devices without disrupting the system.

Advantages

• Low voltage operation allows for reduced power consumption.
• Fast switching speed ensures efficient data transmission.
• 5V tolerance provides compatibility with a wide range of systems.
• Power-off high-impedance inputs and outputs minimize power wastage.
• Overvoltage tolerant inputs simplify level translation between different voltage domains.
• Bus hold feature eliminates the need for additional components, reducing circuit complexity.
• Live insertion and withdrawal capability enables easy maintenance and upgrades.

Disadvantages

• Limited supply voltage range (2.3V to 3.6V) may restrict compatibility with certain systems.
• Latch-up performance exceeding 500mA may pose a risk in high-current applications.

Working Principles

The 74LCX240FT(AE) is an octal buffer/line driver that operates using low-voltage CMOS technology. It accepts input signals and amplifies them to drive output lines. The device features 3-state outputs, allowing multiple drivers to share a common bus. When the output is disabled, it enters a high-impedance state, preventing any interference with other devices connected to the bus.

The 74LCX240FT(AE) supports both 3.3V and 5V systems, making it suitable for a wide range of applications. It incorporates overvoltage tolerant inputs, which enable seamless translation between different voltage levels. The bus hold feature eliminates the need for external pull-up/pull-down resistors, simplifying circuit design.

Application Field Plans

The 74LCX240FT(AE) finds application in various fields, including:

1. Microcontrollers and embedded systems
2. Communication systems
3. Data storage devices
4. Industrial automation
5. Automotive electronics
6. Consumer electronics

Alternative Models

• SN74LVC240A
• MC74LCX240DT
• CD74LCX240M

These alternative models offer similar functionality and can be used as substitutes for the 74LCX240FT(AE) depending on specific requirements.

In conclusion, the 74LCX240FT(AE) is a low-voltage, fast CMOS octal buffer/line driver with 5V tolerant inputs and outputs. Its versatile features, such as overvoltage tolerance, bus hold capability, and live insertion support, make it