Encyclopedia Entry: 74ACT299SCX

Product Overview

Category

The 74ACT299SCX belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronic systems for data storage and manipulation.

Characteristics

• The 74ACT299SCX is a 8-bit universal shift/storage register.
• It operates on a wide supply voltage range, typically between 4.5V and 5.5V.
• This IC offers high-speed operation with a maximum clock frequency of 125 MHz.
• It has a low power consumption, making it suitable for battery-powered devices.
• The 74ACT299SCX is designed to be compatible with TTL (Transistor-Transistor Logic) inputs and outputs.

Package and Quantity

The 74ACT299SCX is available in a small outline package (SOIC) with 20 pins. It is usually sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Maximum Clock Frequency: 125 MHz
• Number of Bits: 8
• Input/Output Compatibility: TTL
• Package Type: SOIC
• Pin Count: 20

Detailed Pin Configuration

The 74ACT299SCX has 20 pins, each serving a specific function. Here is the detailed pin configuration:

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

Functional Features

The 74ACT299SCX offers the following functional features:

• Universal Shift/Storage Register: It can be used to shift data in or out, as well as store data.
• Parallel and Serial Data Transfer: The IC supports both parallel and serial data transfer modes.
• Asynchronous Master Reset: The master reset input allows for clearing the register to a known state.
• High-Speed Operation: With a maximum clock frequency of 125 MHz, it enables fast data processing.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows for compatibility with various systems.
• High-speed operation facilitates efficient data manipulation.
• Low power consumption makes it suitable for battery-powered devices.
• Compatible with TTL inputs and outputs, ensuring versatility in system integration.

Disadvantages

• Limited number of bits (8) may not be sufficient for certain applications requiring larger data storage capacity.
• Availability in only one package type (SOIC) may limit its use in specific circuit designs.

Working Principles

The 74ACT299SCX operates based on the principles of digital logic circuits. It utilizes flip-flops and combinational logic to perform data storage and shifting operations. The clock pulse input controls the timing of these operations, while the data inputs and outputs enable data transfer between the IC and other components in the system.

Detailed Application Field Plans

The 74ACT299SCX finds applications in various digital electronic systems, including but not limited to:

1. Data Communication Systems: Used for data buffering and synchronization.
2. Microcontrollers and Microprocessors: Employed for parallel-to-serial or serial-to-parallel data conversion.
3. Memory Systems: Utilized for address decoding and data storage.
4. Industrial Control Systems: Integrated into control units for data manipulation and processing.

Alternative Models

While the 74ACT299SCX is a reliable IC, there are alternative models available that serve similar functions. Some popular alternatives include:

1. 74HC299: Similar functionality with a wider supply voltage range.
2. CD74HCT299E: Compatible with CMOS inputs and offers higher noise immunity.
3. SN74LS299N: Lower power consumption and compatible with LSTTL inputs.

These alternative models can be considered based on specific requirements and system compatibility.

In conclusion, the 74ACT299SCX is a versatile 8-bit universal shift/storage register IC used in digital electronic systems. Its high