Encyclopedia Entry: 74ACT244MTC

Product Overview

Category

The 74ACT244MTC belongs to the category of integrated circuits (ICs) and specifically falls under the family of octal buffer/line drivers.

Use

This IC is primarily used for signal buffering and line driving applications in digital electronic systems. It provides a high-speed, non-inverting buffer with 3-state outputs, making it suitable for various digital logic designs.

Characteristics

• High-speed operation: The 74ACT244MTC offers fast propagation delays, enabling efficient signal transmission.
• Non-inverting buffer: It maintains the input signal polarity at the output, ensuring accurate data transfer.
• 3-state outputs: The IC supports three output states - high impedance, logic high, and logic low - allowing multiple devices to share a common bus without interference.
• Wide operating voltage range: It can operate within a voltage range of 2V to 6V, making it compatible with different power supply levels.
• Low power consumption: The IC consumes minimal power, enhancing energy efficiency in electronic systems.

Package and Quantity

The 74ACT244MTC is available in a small outline surface mount package (TSSOP-20). It is typically sold in reels or tubes containing multiple units, with quantities varying based on the supplier.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Propagation Delay: 5ns
• Maximum Output Current: ±24mA

Pin Configuration

The 74ACT244MTC features a 20-pin TSSOP package with the following pin configuration:

┌───┬───┐ 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 A8 ─┤ 8 │ 13 ├─ B7 GND ─┤ 9 │ 12 ├─ B8 OE1 ─┤10 │ 11 ├─ OE2 └───┴───┘

Functional Features

The 74ACT244MTC offers the following functional features:

• Octal buffer/line driver: It provides eight independent buffers with tri-state outputs.
• Non-inverting operation: The input signal is reproduced at the output without any inversion.
• High-speed data transfer: The IC ensures fast propagation delays, enabling efficient communication between digital devices.
• 3-state outputs: The three output states (high impedance, logic high, and logic low) allow multiple devices to share a common bus without interference.

Advantages and Disadvantages

Advantages

• High-speed operation facilitates rapid data transmission.
• Non-inverting buffer maintains signal polarity integrity.
• 3-state outputs enable bus sharing among multiple devices.
• Wide operating voltage range enhances compatibility.
• Low power consumption promotes energy efficiency.

Disadvantages

• Limited output current capacity may restrict certain applications requiring higher current levels.
• TSSOP package may pose challenges for hand soldering due to its small size.

Working Principles

The 74ACT244MTC operates as an octal buffer/line driver by amplifying and reproducing digital signals. When the enable (OE) input is active, the IC passes the input signal to the corresponding output with a non-inverted polarity. In the inactive state, the outputs enter a high impedance state, allowing other devices to drive the bus.

Application Field Plans

The 74ACT244MTC finds applications in various digital systems, including but not limited to: - Microprocessor-based systems - Data communication networks - Memory interfacing - Address decoding circuits - Bus drivers

Alternative Models

Several alternative models can be considered as substitutes for the 74ACT244MTC, depending on specific requirements. Some notable alternatives include: - 74HC244: A similar octal buffer/line driver with slightly different electrical characteristics. - 74LS244: An older technology version with slower speed but compatible pin configuration. - SN74LV244A: A low-voltage variant suitable for applications requiring lower power supply levels.

Please note that the suitability of alternative models should be evaluated based on individual project