The MC74LS74A is a Dual D-Type Positive-Edge-Triggered Flip-Flop from the 74LS series of integrated circuits, manufactured by Freescale Semiconductor (NXP). It contains two independent D-type flip-flops in a single package. Data at the D input is transferred to the Q output on the positive-going edge of the clock pulse. Each flip-flop also has individual set (SD) and reset (RD) inputs, which can be used to directly set or reset the flip-flop regardless of the clock and D inputs.

Applications

• Data Storage: Temporarily storing digital data.
• Frequency Division: Dividing the frequency of a clock signal.
• Shift Registers: Building shift registers for serial data manipulation.
• Counters: Implementing binary or other types of counters.
• Control Logic: Generating control signals in digital systems.

Features

• Dual D-Type Flip-Flop: Contains two independent D-type flip-flops in a single package.
• Positive-Edge Triggered: Data is transferred to the output on the positive-going edge of the clock pulse.
• Individual Set and Reset Inputs: Allows asynchronous setting or resetting of each flip-flop.
• Low-Power Schottky (LS) Technology: Offers a good balance between speed and power consumption.
• TTL Compatible: Interfaces easily with other TTL logic devices.

Benefits

• Efficient Data Storage: Provides a convenient way to store and manipulate digital data.
• Simplified Circuit Design: Reduces component count and board space.
• Versatile Applications: Suitable for a wide range of digital logic applications.
• Reduced Power Consumption: LS technology minimizes power dissipation.
• Easy Integration: TTL compatibility simplifies interfacing with other logic devices.

The MC74LS74A is available in various package types, including DIP (Dual In-Line Package) and SOIC (Small Outline Integrated Circuit). It is a versatile component used in a wide variety of digital systems, including computers, controllers, and communication equipment. The individual set and reset inputs provide additional flexibility, allowing the flip-flops to be initialized or forced to a specific state regardless of the clock signal.