Encyclopedia Entry: 74AC174SC

Product Overview

Category

The 74AC174SC 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 manipulating binary data. It serves as a D-type flip-flop with six individual flip-flops integrated into a single package.

Characteristics

• High-speed operation: The 74AC174SC offers fast switching times, making it suitable for applications requiring quick data storage and retrieval.
• Low power consumption: This IC is designed to operate efficiently while consuming minimal power.
• Wide voltage range: It can function within a broad voltage range, typically between 2V and 6V.
• Compact package: The 74AC174SC is available in a small outline package (SOIC), which allows for easy integration into various electronic systems.
• Robustness: It exhibits high noise immunity, ensuring reliable performance even in noisy environments.

Package and Quantity

The 74AC174SC is commonly packaged in a 16-pin SOIC package. It is typically sold in reels or tubes containing multiple units, with quantities varying based on the supplier and customer requirements.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to Vcc
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±24mA
• Propagation Delay: 5ns (max)
• Flip-Flop Count: 6

Detailed Pin Configuration

The 74AC174SC features 16 pins, each serving a specific purpose:

1. CLR (Clear): Clear input for resetting the flip-flop outputs.
2. D0-D5 (Data Inputs): Six individual data inputs for storing binary information.
3. CP (Clock Pulse): Input for triggering the flip-flop on the rising edge of the clock signal.
4. Q0-Q5 (Flip-Flop Outputs): Six individual outputs representing the stored data.
5. GND (Ground): Reference voltage for the IC.
6. Vcc (Supply Voltage): Positive power supply input.

Functional Features

The 74AC174SC offers the following functional features:

• Data Storage: It can store binary data on each of its six flip-flops.
• Clock Triggered Operation: The flip-flops are triggered by a clock pulse, allowing synchronized data storage and retrieval.
• Clear Functionality: The clear input allows for resetting all flip-flop outputs simultaneously.
• High-Speed Operation: The IC enables fast data processing due to its high-speed switching capabilities.
• Noise Immunity: It exhibits excellent noise immunity, ensuring reliable operation in noisy environments.

Advantages and Disadvantages

Advantages

• Fast operation speed enables efficient data handling.
• Low power consumption makes it suitable for battery-powered devices.
• Wide voltage range allows for compatibility with various systems.
• Compact package facilitates easy integration into electronic circuits.
• Robustness ensures reliable performance even in noisy environments.

Disadvantages

• Limited number of flip-flops (six) may restrict certain applications requiring more storage capacity.
• Not suitable for high-voltage applications exceeding the specified voltage range.

Working Principles

The 74AC174SC operates based on the principles of sequential logic. When a clock pulse is received at the CP input, the state of the data inputs (D0-D5) is captured and stored in the corresponding flip-flops. The stored data remains unchanged until the next clock pulse triggers a new data capture. The clear input (CLR) resets all flip-flop outputs to a known state when activated.

Detailed Application Field Plans

The 74AC174SC finds application in various digital systems, including but not limited to:

1. Data Storage: It is commonly used in microcontrollers and microprocessors for temporary data storage during processing.
2. Counters: The IC can be employed in counter circuits to keep track of events or perform arithmetic operations.
3. Shift Registers: It is utilized in shift register circuits for serial-to-parallel or parallel-to-serial data conversion.
4. Address Decoders: The 74AC174SC can be part of address decoding circuits in memory systems.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74AC174SC include:

1. 74HC174: This IC operates at a lower voltage range (2V to 5.5V) but provides comparable features and pin configuration.
2. CD40174: It is a CMOS-based flip-flop IC with similar characteristics and pinout as the 74AC174SC.
3. SN74LS174: This TTL-compatible flip-flop IC offers similar functionality and pin compatibility.

These alternative models can be considered based on specific project requirements and availability.

In conclusion, the 74AC174SC