Encyclopedia Entry: 74F174SJ

Product Overview

Category

The 74F174SJ belongs to the category of integrated circuits (ICs), specifically flip-flops.

Use

This IC is commonly used in digital electronic circuits for storing and manipulating binary data. It serves as a fundamental building block in various applications, including computer memory systems, counters, and registers.

Characteristics

• The 74F174SJ is a quad D-type flip-flop with clear.
• It operates on a wide voltage range, typically between 4.5V and 5.5V.
• This IC offers high-speed operation, making it suitable for time-critical applications.
• It has a compact package size, allowing for space-efficient circuit designs.

Package and Quantity

The 74F174SJ is available in a small outline integrated circuit (SOIC) package. Each package contains one IC.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Logic Family: 74F
• Number of Flip-Flops: 4
• Clear Function: Yes
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOIC-16

Pin Configuration

The 74F174SJ features a 16-pin configuration, as follows:

+---+--+---+ CLR |1 +--+ 16| VCC D0 |2 15| Q0 D1 |3 14| Q1 D2 |4 13| Q2 D3 |5 12| Q3 GND |6 11| CP CLK |7 10| D PRN |8 9| QN +--------+

Functional Features

• Quad Flip-Flops: The 74F174SJ integrates four individual D-type flip-flops, allowing for simultaneous storage and manipulation of multiple binary inputs.
• Clear Function: This IC includes a clear input (CLR) that resets all the flip-flops to a known state when activated.
• High-Speed Operation: The 74F174SJ is designed for high-speed digital circuits, enabling rapid data processing and transfer.
• Noise Immunity: It offers excellent noise immunity, ensuring reliable operation in noisy environments.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data handling.
• Compact package size allows for space-saving designs.
• Clear function provides easy reset capability.
• Good noise immunity ensures reliable performance.

Disadvantages

• Limited number of flip-flops per IC (four in this case).
• Requires an external clock signal for proper operation.

Working Principles

The 74F174SJ operates based on the principles of sequential logic. Each flip-flop within the IC stores a single bit of binary data. The clock input (CP) controls the timing of data storage and retrieval. When the clock signal transitions from low to high, the input data (D) is captured and stored in the corresponding flip-flop. The stored data can then be accessed through the output pins (Q0-Q3).

Application Field Plans

The 74F174SJ finds applications in various digital electronic systems, including: 1. Computer memory modules: Used for storing and retrieving data in RAM (Random Access Memory) systems. 2. Counters and timers: Employed to count events or measure time intervals accurately. 3. Shift registers: Utilized for serial-to-parallel or parallel-to-serial data conversion. 4. Control systems: Integrated into control circuits for sequential logic operations.

Alternative Models

For similar functionality, alternative models to the 74F174SJ include: - 74HC174: A CMOS-based quad D-type flip-flop with clear. - 74LS174: A low-power Schottky TTL quad D-type flip-flop with clear. - CD4013: A dual D-type flip-flop with clear, available in various logic families.

These alternative models offer similar features and can be used as substitutes depending on specific design requirements.

In conclusion, the 74F174SJ is a versatile IC belonging to the flip-flop category. Its high-speed operation, compact package size, and clear function make it suitable for various digital electronic applications. However, designers should consider its limited number of flip-flops per IC and the need for an external clock signal.