Encyclopedia Entry: 74LVT244AD,112

Product Overview

Category

The 74LVT244AD,112 belongs to the category of integrated circuits (ICs) and specifically falls under the family of logic gates.

Use

This product is commonly used in digital electronics for signal amplification, buffering, and level shifting purposes. It serves as a bidirectional octal buffer/line driver with 3-state outputs.

Characteristics

• Voltage Compatibility: The 74LVT244AD,112 operates at a voltage range of 2.7V to 3.6V, making it suitable for low-power applications.
• High-Speed Operation: With a maximum propagation delay of 5.4ns, this IC ensures efficient signal transmission.
• 3-State Outputs: The 74LVT244AD,112 offers three output states - high impedance, logic high, and logic low - providing flexibility in controlling signal flow.

Package and Quantity

This product is available in a standard 20-pin SSOP (Shrink Small Outline Package) format. It is typically sold in reels containing a quantity of 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Propagation Delay: 5.4ns
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The 74LVT244AD,112 features a 20-pin SSOP package with the following pin configuration:

┌───┬───┐ OE ─┤1 20├─ VCC A1 ─┤2 19├─ B1 A2 ─┤3 18├─ B2 A3 ─┤4 17├─ B3 A4 ─┤5 16├─ B4 A5 ─┤6 15├─ B5 A6 ─┤7 14├─ B6 A7 ─┤8 13├─ B7 GND ─┤9 12├─ B8 Y1 ─┤10 11├─ Y8 └─────┘

Functional Features

• Bidirectional Buffering: The 74LVT244AD,112 allows bidirectional signal transmission, enabling seamless communication between different parts of a digital circuit.
• 3-State Outputs: The IC offers three output states - high impedance, logic high, and logic low. This feature facilitates bus sharing and reduces the possibility of data conflicts.
• High-Speed Operation: With a maximum propagation delay of 5.4ns, this IC ensures efficient signal transmission in time-critical applications.

Advantages and Disadvantages

Advantages

• Low Power Consumption: The 74LVT244AD,112 operates at a low voltage range, resulting in reduced power consumption.
• Compact Package: The SSOP package provides a compact form factor, making it suitable for space-constrained designs.
• Bidirectional Capability: The bidirectional buffering capability of this IC simplifies circuit design and enhances flexibility.

Disadvantages

• Limited Voltage Range: The operating voltage range of 2.7V to 3.6V may restrict its use in certain applications that require higher voltages.
• Propagation Delay: Although relatively fast, the maximum propagation delay of 5.4ns may not be suitable for ultra-high-speed applications.

Working Principles

The 74LVT244AD,112 operates based on the principles of CMOS (Complementary Metal-Oxide-Semiconductor) technology. It utilizes a combination of NMOS and PMOS transistors to achieve bidirectional buffering and level shifting functionality. The internal circuitry ensures efficient signal transmission while minimizing power consumption.

Application Field Plans

The 74LVT244AD,112 finds extensive use in various digital electronics applications, including but not limited to: - Microprocessor-based systems - Data communication interfaces - Memory address decoding - Bus drivers and receivers - Industrial control systems

Alternative Models

For users seeking alternative options, the following ICs can be considered: - 74LVTH244A: This IC offers similar functionality with improved voltage tolerance and higher speed. - 74HCT244: A compatible IC that operates at a wider voltage range and is suitable for TTL (Transistor-Transistor Logic) level interfacing.

These alternatives provide flexibility in choosing the most appropriate IC based on specific application requirements.

In conclusion, the 74LVT244AD,