Encyclopedia Entry: 74FCT3244AQG8

Product Overview

Category

The 74FCT3244AQG8 belongs to the category of integrated circuits (ICs) and specifically falls under the family of octal buffer/line drivers.

Use

This IC is commonly used as a buffer or line driver in various digital systems, such as computers, communication devices, and industrial control systems. It helps in amplifying and transmitting digital signals between different components of a system.

Characteristics

• Octal buffer/line driver with 3-state outputs
• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatible with TTL input/output levels
• Output current capability: ±24mA
• Schmitt-trigger inputs for noise immunity

Package and Quantity

The 74FCT3244AQG8 is available in a standard 20-pin SSOP (Shrink Small Outline Package) package. It is typically sold in reels or tubes containing multiple units, with a common quantity of 250 pieces per reel/tube.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 6ns (max)
• Output Transition Time: 4ns (max)
• Input Capacitance: 4pF (typ)
• Output Capacitance: 8pF (typ)

Pin Configuration

The 74FCT3244AQG8 has a total of 20 pins, which are assigned specific functions as follows:

1. OE (Output Enable) 1
2. A1 (Input) 1
3. Y1 (Output) 1
4. GND (Ground)
5. Y2 (Output) 2
6. A2 (Input) 2
7. OE (Output Enable) 2
8. VCC (Supply Voltage)
9. Y3 (Output) 3
10. A3 (Input) 3
11. OE (Output Enable) 3
12. Y4 (Output) 4
13. A4 (Input) 4
14. GND (Ground)
15. Y5 (Output) 5
16. A5 (Input) 5
17. OE (Output Enable) 4
18. Y6 (Output) 6
19. A6 (Input) 6
20. Y7 (Output) 7

Functional Features

• The 74FCT3244AQG8 provides eight independent buffer/line driver channels.
• Each channel has a 3-state output, allowing for high impedance when disabled.
• It operates at high speeds, making it suitable for time-critical applications.
• The Schmitt-trigger inputs ensure reliable operation in the presence of noise.
• The IC is compatible with both TTL and CMOS logic families.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transmission. - Low power consumption helps in reducing overall system energy requirements. - Wide operating voltage range allows for compatibility with various systems. - Schmitt-trigger inputs provide noise immunity, ensuring reliable signal processing.

Disadvantages: - Limited output current capability may restrict its use in certain high-current applications. - The SSOP package may require specialized handling during assembly.

Working Principles

The 74FCT3244AQG8 functions as a buffer or line driver by amplifying and transmitting digital signals. When the output enable (OE) pin is active, the input signals are amplified and transmitted to the corresponding output pins. When the OE pin is inactive, the outputs are put in a high-impedance state, allowing other devices to drive the bus lines.

Application Field Plans

The 74FCT3244AQG8 finds applications in various fields, including: 1. Computer systems: Used for data buffering and signal transmission between different components, such as memory modules and peripheral devices. 2. Communication devices: Enables signal amplification and transmission in networking equipment, routers, and switches. 3. Industrial control systems: Facilitates communication between different control units and sensors/actuators in automation systems.

Alternative Models

There are several alternative models available that offer similar functionality to the 74FCT3244AQG8. Some notable alternatives include: - SN74FCT3244: Manufactured by Texas Instruments - MC74FCT3244: Manufactured by ON Semiconductor - CD74FCT3244: Manufactured by Texas Instruments

These alternative models may have slight variations in specifications and pin configurations but serve the same purpose of buffer/line driving.

In conclusion, the 74FCT3244AQG8 is a versatile octal buffer/