Encyclopedia Entry: 74AC240MTR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Signal Buffer/Line Driver
• Characteristics: High-speed, low-power, octal buffer with 3-state outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The 74AC240MTR is a versatile IC that provides buffering and line driving capabilities for digital signals.
• Packaging/Quantity: The 74AC240MTR is typically sold in reels containing 2500 units.

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to Vcc
• Output Voltage: 0V to Vcc
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 5.5 ns (typical)
• Output Drive Capability: ±24 mA

Detailed Pin Configuration

The 74AC240MTR has a total of 20 pins, which are arranged as follows:

+---\/---+ A1 -- |1 20| -- Vcc A2 -- |2 19| -- B1 A3 -- |3 18| -- B2 A4 -- |4 17| -- B3 A5 -- |5 16| -- B4 A6 -- |6 15| -- B5 A7 -- |7 14| -- B6 GND -- |8 13| -- B7 OE -- |9 12| -- B8 Y1 -- |10 11| -- Y2 +--------+

Functional Features

• Octal buffer with 3-state outputs
• High-speed operation, suitable for use in fast digital systems
• Low power consumption, making it energy-efficient
• Provides signal buffering and line driving capabilities
• Enables bidirectional communication between different logic families

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Low power consumption reduces energy usage - Versatile IC suitable for various digital applications - Bidirectional communication capability enhances system flexibility

Disadvantages: - Limited output drive capability may not be suitable for high-current applications - Requires careful consideration of voltage levels to ensure compatibility with other components

Working Principles

The 74AC240MTR operates by receiving digital input signals on its A1-A7 pins. These signals are then buffered and amplified before being transmitted to the corresponding B1-B8 output pins. The OE (Output Enable) pin controls the 3-state outputs, allowing the IC to be effectively disconnected from the bus when not in use.

Detailed Application Field Plans

The 74AC240MTR is commonly used in various digital systems, including: - Microprocessor-based systems - Data communication networks - Memory interfaces - Industrial control systems - Automotive electronics

Alternative Models

• 74ACT240: Similar functionality but operates at a higher speed
• 74HC240: Compatible with CMOS logic levels and offers lower power consumption
• 74LS240: Operates at a slower speed but provides higher output drive capability

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