Encyclopedia Entry: 74ACT299TTR

Product Overview

Category

The 74ACT299TTR belongs to the category of integrated circuits (ICs) and specifically falls under the family of digital logic devices.

Use

This IC is commonly used in digital systems for data storage and manipulation. It serves as an 8-bit universal shift/storage register, allowing for efficient data transfer and storage operations.

Characteristics

• The 74ACT299TTR operates on a supply voltage range of 4.5V to 5.5V.
• It offers high-speed operation with a maximum clock frequency of 125 MHz.
• This IC features 3-state outputs, enabling easy interfacing with other devices.
• It has a wide operating temperature range of -40°C to +85°C, making it suitable for various environments.

Package

The 74ACT299TTR is available in a small-outline transistor (SOT) package. This package type ensures compactness and ease of integration into electronic circuits.

Essence

The essence of the 74ACT299TTR lies in its ability to efficiently store and manipulate digital data within a system. It provides a reliable and versatile solution for data transfer and storage requirements.

Packaging/Quantity

The 74ACT299TTR is typically supplied in reels or tubes, depending on the manufacturer. Each reel or tube contains a specific quantity of ICs, usually ranging from hundreds to thousands, depending on customer requirements.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Maximum Clock Frequency: 125 MHz
• Operating Temperature Range: -40°C to +85°C
• Logic Family: ACT
• Number of Bits: 8
• Output Type: 3-State

Detailed Pin Configuration

The 74ACT299TTR consists of 20 pins, each serving a specific function. The pin configuration is as follows:

1. Q0: Output 0
2. Q1: Output 1
3. Q2: Output 2
4. Q3: Output 3
5. Q4: Output 4
6. Q5: Output 5
7. Q6: Output 6
8. Q7: Output 7
9. GND: Ground
10. D0: Data Input 0
11. D1: Data Input 1
12. D2: Data Input 2
13. D3: Data Input 3
14. D4: Data Input 4
15. D5: Data Input 5
16. D6: Data Input 6
17. D7: Data Input 7
18. CP: Clock Pulse Input
19. MR: Master Reset Input
20. VCC: Supply Voltage

Functional Features

The 74ACT299TTR offers the following functional features:

• Universal shift/storage register capable of both serial and parallel data transfer.
• 3-state outputs allow for easy interfacing with other devices.
• Master reset input for clearing the register to a known state.
• Clock pulse input for synchronized data transfer operations.
• High-speed operation enables efficient data manipulation.

Advantages and Disadvantages

Advantages

• Versatile functionality for both shift and storage operations.
• High-speed operation allows for quick data transfer.
• 3-state outputs facilitate easy integration with other devices.
• Wide operating temperature range ensures suitability for various environments.

Disadvantages

• Requires an external clock signal for proper operation.
• Limited number of bits (8) may not be sufficient for certain applications requiring larger data storage capacities.

Working Principles

The 74ACT299TTR operates based on the principles of digital logic circuits. It utilizes flip-flops and multiplexers to enable data storage and transfer operations. The clock pulse input synchronizes the shifting of data within the register, while the master reset input allows for clearing the register to a known state.

Detailed Application Field Plans

The 74ACT299TTR finds applications in various digital systems where efficient data storage and manipulation are required. Some specific application fields include:

1. Communication Systems: Used for buffering and transferring data between different communication modules.
2. Data Processing Units: Employed in central processing units (CPUs) for temporary data storage during arithmetic and logical operations.
3. Control Systems: Integrated into control units to store and manipulate control signals.
4. Test and Measurement Equipment: Utilized for data acquisition and signal processing in test and measurement devices.

Detailed and Complete Alternative Models

• 74HC299: Similar functionality but operates at a lower voltage range (2V to 6V).
• 74LS299: Offers comparable features but operates at a slower speed compared to the 74ACT299TTR.
• CD4021B: Provides similar shift/storage register functionality but operates on a wider supply