Encyclopedia Entry: 74ACT374SC

Product Overview

Category

The 74ACT374SC belongs to the category of integrated circuits (ICs) and specifically falls under the family of flip-flops.

Use

This product is commonly used in digital electronics for storing and transferring data. It serves as a latch or register, allowing the storage and retrieval of binary information.

Characteristics

• The 74ACT374SC is a high-speed octal D-type flip-flop with a transparent latch.
• It operates on a wide voltage range, typically between 2V and 6V.
• This IC offers excellent noise immunity and low power consumption.
• It is designed to work in both commercial and industrial temperature ranges.
• The 74ACT374SC is compatible with TTL (Transistor-Transistor Logic) inputs and outputs.

Package and Quantity

The 74ACT374SC is available in a small-outline integrated circuit (SOIC) package. It consists of 20 pins arranged in a compact form. These packages are commonly sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V to VCC
• Low-Level Input Voltage: GND to 0.8V
• Maximum Operating Frequency: 125 MHz
• Output Drive Capability: 24 mA
• Propagation Delay Time: 5 ns

Detailed Pin Configuration

The 74ACT374SC has 20 pins, each serving a specific function. Here is a detailed pin configuration:

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

Functional Features

• The 74ACT374SC operates as a transparent latch when the clock input (CP) is high.
• When the clock input transitions from high to low, the data inputs (D0-D7) are latched and stored in the corresponding outputs (Q0-Q7).
• The output enable (OE) pin allows the outputs to be enabled or disabled based on the control signal.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer. - Wide supply voltage range allows compatibility with various systems. - Excellent noise immunity ensures reliable performance. - Low power consumption contributes to energy efficiency.

Disadvantages: - Limited output drive capability may restrict use in certain applications. - Propagation delay time may affect timing-sensitive designs.

Working Principles

The 74ACT374SC utilizes flip-flop circuits to store and transfer data. It operates based on the positive edge-triggered D-type flip-flop principle. The clock input controls the latching and storage of data, while the output enable pin enables or disables the outputs.

Detailed Application Field Plans

The 74ACT374SC finds application in various digital systems, including but not limited to: - Microprocessors and microcontrollers - Memory modules - Communication systems - Data acquisition systems - Industrial automation

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74ACT374SC include: - 74HC374: A CMOS-based octal D-type flip-flop with similar characteristics. - 74LS374: A low-power Schottky TTL-based octal D-type flip-flop.

These alternatives can be considered based on specific requirements, compatibility, and availability.

In conclusion, the 74ACT374SC is a high-speed octal D-type flip-flop IC used for data storage and transfer in digital electronics. Its wide voltage range, noise immunity, and low power consumption make it suitable for various applications.