The 74HCT174DB is a high-speed Si-gate CMOS device from NXP Semiconductors, designed to operate in a similar fashion to the HEF40174B but with better speed performance. This integrated circuit is a member of the 74HCT family, which is known for its compatibility with TTL (Transistor-Transistor Logic), allowing it to interface with both CMOS and TTL logic levels effectively.

Key Features

• Hex D-type Flip-flop: The device contains six flip-flops with single-bit D-type inputs, making it ideal for implementing storage registers, counters, and toggle functions.
• Positive-edge Triggering: Each flip-flop is triggered by a positive-going edge on the clock input, ensuring reliable and predictable operation in digital circuits.
• Individual Reset Inputs: To provide greater control, each flip-flop has a separate direct clear (reset) input.
• High Noise Immunity: The 74HCT174DB boasts a high noise immunity typical of CMOS devices, ensuring stable performance in electrically noisy environments.
• TTL Input Compatibility: Input levels are compatible with TTL output levels, allowing for direct interfacing with TTL logic without the need for additional components.

Applications

The versatility of the 74HCT174DB makes it suitable for a wide range of applications, including:

• Buffer storage
• Shift registers
• Data storage
• Counters and toggles
• Control systems

Technical Specifications

The device is supplied in a 16-pin plastic SSOP package and is specified for operation from -40°C to +125°C. It requires a supply voltage (V<sub>CC) of 5V ±10%, making it easy to integrate into 5V digital systems. The 74HCT174DB also has a low power consumption, which is characteristic of CMOS integrated circuits, making it a power-efficient choice for modern electronic designs.

Ordering Information

For ordering, the full part number is 74HCT174DB,112. It is important to refer to the latest datasheets and product specifications from NXP Semiconductors for detailed information before incorporating the 74HCT174DB into your designs.