SN74HCT574PWT

The SN74HCT574PWT is a high-speed, low-power octal D-type flip-flop with a 3-state output, designed by Texas Instruments. It is part of the HCT (High-speed CMOS TTL-compatible) family, which means it is compatible with TTL logic levels while offering the advantages of CMOS technology, such as lower power consumption and higher noise immunity.

Key Features:

1. Functionality: The SN74HCT574PWT contains eight D-type flip-flops, which can store one bit of data each. The flip-flops are edge-triggered, meaning they capture the input data on the rising edge of the clock signal.

2. 3-State Outputs: Each flip-flop has a 3-state output, allowing for multiple devices to share the same output line without interference. This is particularly useful in bus-oriented systems.

3. Input and Output Compatibility: The device is designed to be compatible with standard TTL logic levels, making it suitable for interfacing with other TTL devices. It operates with a supply voltage range of 4.5V to 5.5V.

4. Propagation Delay: The SN74HCT574PWT features a fast propagation delay, typically around 15 ns at 5V, which allows for high-speed operation in digital circuits.

5. Power Consumption: The device is designed for low power consumption, making it suitable for battery-operated devices and applications where power efficiency is critical.

6. Pin Configuration: The SN74HCT574PWT is available in a 20-pin TSSOP (Thin Shrink Small Outline Package) package, which is compact and suitable for space-constrained applications. The pins are arranged in a dual in-line configuration, facilitating easy integration into circuit boards.

7. Operating Temperature Range: The device is rated for operation over a wide temperature range, typically from -40°C to +125°C, making it suitable for industrial and automotive applications.

8. Applications: Common applications for the SN74HCT574PWT include data storage, shift registers, and temporary data holding in digital systems. It is often used in microcontroller interfacing, digital signal processing, and various logic circuit designs.

Electrical Characteristics:

• Supply Voltage (Vcc): 4.5V to 5.5V
• Input High Voltage (VIH): Minimum of 2.0V
• Input Low Voltage (VIL): Maximum of 0.8V
• Output High Voltage (VOH): Minimum of 4.2V at Vcc = 5V
• Output Low Voltage (VOL): Maximum of 0.4V at Vcc = 5V
• Maximum Operating Frequency: Up to 25 MHz

Conclusion:

The SN74HCT574PWT is a versatile and reliable component for digital circuit design, offering a combination of speed, low power consumption, and compatibility with existing TTL logic. Its octal configuration and 3-state outputs make it an excellent choice for applications requiring multiple data storage elements in a compact form factor.