SN74HC74D

The SN74HC74D is a dual D-type flip-flop integrated circuit (IC) manufactured by Texas Instruments. It is part of the 74HC (High-speed CMOS) family, which is known for its high-speed operation and low power consumption. The device is designed to operate with a supply voltage range of 2V to 6V, making it versatile for various digital applications.

Key Features:

1. Dual D Flip-Flops: The SN74HC74D contains two independent D flip-flops, which can be used to store binary data. Each flip-flop has a data input (D), a clock input (CLK), a set input (SET), a reset input (RESET), and two outputs (Q and Q’).

2. Edge-Triggered Operation: The flip-flops are edge-triggered, meaning they capture the input data on the rising edge of the clock signal. This feature allows for synchronous operation in digital circuits.

3. Asynchronous Set and Reset: The device includes asynchronous set and reset inputs, allowing for immediate control of the output states regardless of the clock signal. When the SET input is activated, the Q output is set to high (1), and when the RESET input is activated, the Q output is set to low (0).

4. High-Speed Performance: The SN74HC74D is capable of operating at high speeds, with propagation delays typically in the range of nanoseconds, making it suitable for high-frequency applications.

5. Low Power Consumption: As a CMOS device, it consumes significantly less power compared to traditional TTL (Transistor-Transistor Logic) devices, which is beneficial for battery-operated and energy-efficient designs.

6. Wide Operating Temperature Range: The IC is designed to function effectively over a wide temperature range, typically from -40°C to +125°C, making it suitable for industrial and automotive applications.

7. Pin Configuration: The SN74HC74D is available in various package types, including the 14-pin DIP (Dual In-line Package) and surface mount options. The pin configuration includes dedicated pins for each flip-flop, power supply (Vcc), and ground (GND).

8. Logic Levels: The device is compatible with standard logic levels, allowing it to interface with other CMOS and TTL logic families.

Applications:

The SN74HC74D is widely used in digital circuits for applications such as:

• Data storage and transfer in registers
• Frequency division in counters
• State machines and control circuits
• Memory elements in sequential logic designs
• Timing applications in digital systems

Conclusion:

The SN74HC74D from Texas Instruments is a robust and versatile dual D-type flip-flop that offers high-speed performance, low power consumption, and flexibility for a variety of digital applications. Its features make it an essential component in modern electronic designs, particularly in areas requiring reliable data storage and manipulation.