Encyclopedia Entry: 74HC174D

Product Overview

Category

The 74HC174D belongs to the category of integrated circuits (ICs), specifically flip-flops.

Use

This IC is commonly used in digital electronics for storing and manipulating binary data. It serves as a D-type flip-flop with six independent flip-flops in a single package.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatibility with TTL and CMOS logic levels
• Schmitt-trigger action on clock input allows for noisy input conditions

Package and Quantity

The 74HC174D is available in a standard 16-pin dual in-line package (DIP). It is typically sold in reels or tubes, with quantities varying based on manufacturer and supplier.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +125°C
• Maximum Clock Frequency: 25 MHz

Pin Configuration

The 74HC174D has 16 pins, each serving a specific function. The pin configuration is as follows:

1. Clear (CLR)
2. Data (D0)
3. Data (D1)
4. Data (D2)
5. Data (D3)
6. Data (D4)
7. Data (D5)
8. Clock (CLK)
9. Output Enable (OE)
10. Ground (GND)
11. Q0 Output
12. Q1 Output
13. Q2 Output
14. Q3 Output
15. Q4 Output
16. Q5 Output

Functional Features

The 74HC174D offers the following functional features:

• Independent operation of six flip-flops
• Asynchronous clear input for resetting all flip-flops
• Synchronous operation with a common clock input
• Output enable control for tri-state outputs
• Direct interface with TTL and CMOS logic levels

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data storage and manipulation.
• Low power consumption makes it suitable for battery-powered devices.
• Wide operating voltage range provides flexibility in various applications.
• Compatibility with TTL and CMOS logic levels simplifies integration into existing systems.
• Schmitt-trigger action on the clock input ensures reliable operation even in noisy environments.

Disadvantages

• Limited number of flip-flops (six) in a single package, which may not be sufficient for complex applications requiring more storage elements.
• Lack of built-in protection features against electrostatic discharge (ESD) or other potential hazards, requiring additional external measures.

Working Principles

The 74HC174D operates based on the principles of D-type flip-flops. It stores binary data using positive-edge-triggered flip-flops, allowing synchronous updates of the stored values. The clock input controls the timing of data transfers, while the clear input resets all flip-flops to a known state. The output enable input enables or disables the outputs, providing tri-state functionality.

Detailed Application Field Plans

The 74HC174D finds applications in various digital systems, including but not limited to:

1. Data storage and retrieval systems
2. Counters and frequency dividers
3. Shift registers
4. Address decoding circuits
5. Control and timing circuits
6. Memory address latches

Alternative Models

Several alternative models are available that offer similar functionality to the 74HC174D. These include:

1. SN74HC174N by Texas Instruments
2. CD74HC174E by Texas Instruments
3. MC74HC174AN by ON Semiconductor
4. 74HCT174 by NXP Semiconductors

These alternatives may have slight variations in specifications, pin configuration, or package type, but they serve the same purpose and can be used as substitutes for the 74HC174D.

In conclusion, the 74HC174D is a versatile integrated circuit that provides reliable storage and manipulation of binary data. Its high-speed operation, low power consumption, and compatibility with various logic levels make it suitable for a wide range of digital applications.