MC74HCT244ADTR2

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: High-Speed, CMOS Logic, Octal Bus Buffer
• Package: TSSOP-20
• Essence: The MC74HCT244ADTR2 is an octal bus buffer designed to provide high-speed CMOS logic level shifting. It is commonly used in digital systems where multiple devices need to communicate with each other.
• Packaging/Quantity: The MC74HCT244ADTR2 is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Logic Family: HCT
• Number of Channels: 8
• Input/Output Type: Non-Inverting
• Propagation Delay: 9 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MC74HCT244ADTR2 has a TSSOP-20 package with the following pin configuration:

__ __ A1 | 1 20 | VCC A2 | 2 19 | OE# B1 | 3 18 | I/O1 B2 | 4 17 | I/O2 C1 | 5 16 | I/O3 C2 | 6 15 | I/O4 D1 | 7 14 | GND D2 | 8 13 | I/O5 E1 | 9 12 | I/O6 E2 |10 11 | I/O7 ‾‾ ‾‾

Functional Features

• The MC74HCT244ADTR2 provides non-inverting buffer functionality for up to 8 channels.
• It operates at high-speed, making it suitable for applications requiring fast data transfer.
• The device is compatible with CMOS logic levels, allowing seamless integration into digital systems.
• The output drivers are capable of driving standard TTL inputs.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer. - CMOS compatibility ensures easy integration into existing digital systems. - Non-inverting buffer functionality simplifies signal routing.

Disadvantages: - Limited number of channels (8) may not be sufficient for complex systems requiring more connections. - The TSSOP-20 package may pose challenges in terms of size and soldering.

Working Principles

The MC74HCT244ADTR2 works by receiving input signals on its input pins and amplifying them to the appropriate CMOS logic levels. The non-inverting buffer design ensures that the output signals match the input signals, allowing for seamless communication between devices. The device operates within a specified supply voltage range and provides fast propagation delays, enabling efficient data transfer.

Detailed Application Field Plans

The MC74HCT244ADTR2 is commonly used in various digital systems, including:

1. Microcontrollers: The buffer can be used to interface microcontrollers with other peripheral devices, such as sensors or actuators.
2. Communication Systems: It can be employed in communication systems to facilitate signal transmission between different modules or subsystems.
3. Data Acquisition Systems: The buffer helps in buffering and level shifting analog signals from sensors before being processed by an ADC (Analog-to-Digital Converter).
4. Memory Systems: It can be utilized in memory systems to enable communication between memory modules and the central processing unit.

Detailed and Complete Alternative Models

1. SN74HCT244N: This is a similar octal bus buffer IC from Texas Instruments, offering the same functionality and pin configuration as the MC74HCT244ADTR2.
2. CD74HCT244E: Another alternative from Texas Instruments, this IC also provides non-inverting buffer functionality with 8 channels.

These alternative models can be considered based on availability, pricing, and specific requirements of the application.

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