Texas Instruments

SN74HCT574DW

SN74HCT574DW Description

The SN74HCT574DW from Texas Instruments is a high-speed, 8-bit D-type flip-flop with 3-state outputs, designed for surface-mount applications in the 20-SOIC package. Operating within a 4.5V to 5.5V supply range, this device is part of the 74HCT series, offering CMOS-level compatibility with TTL inputs. It features a positive-edge-triggered clock and delivers a maximum clock frequency of 40 MHz, making it suitable for high-performance digital systems. With a low quiescent current of 8 µA and balanced output drive (6mA sink/source), it ensures efficient power management and reliable signal integrity.

SN74HCT574DW Features

• High-Speed Operation: 40 MHz clock frequency and 47ns propagation delay at 5.5V, ensuring rapid data transfer.
• Low Power Consumption: 8 µA quiescent current minimizes energy usage in battery-sensitive applications.
• Robust Output Drive: 6mA output current (high and low) for strong signal integrity in bus-oriented systems.
• Wide Voltage Compatibility: 4.5V–5.5V supply range with TTL-compatible inputs, ideal for mixed-voltage designs.
• 3-State Outputs: Allows bus sharing and reduces system complexity in multi-device configurations.
• Enhanced Reliability: ROHS3 compliant and REACH unaffected, meeting stringent environmental standards.

SN74HCT574DW Applications

• Data Storage & Transfer: Ideal for register banks, FIFO buffers, and pipeline registers in microprocessors or DSPs.
• Bus Interface Systems: Used in address/data bus drivers due to its 3-state outputs and high drive capability.
• Industrial Control: Suitable for PLC I/O modules and motor control systems requiring edge-triggered latching.
• Consumer Electronics: Employed in set-top boxes, routers, and gaming consoles for signal synchronization.
• Automotive & IoT: Low-power operation makes it fit for sensor interfaces and edge-computing nodes.

Conclusion of SN74HCT574DW

The SN74HCT574DW stands out for its high-speed performance, low power consumption, and robust output drive, making it a versatile choice for digital logic designs. Its 3-state outputs and TTL compatibility simplify integration into complex bus architectures, while its industrial-grade reliability ensures longevity in harsh environments. Whether for data buffering, industrial automation, or consumer electronics, this flip-flop delivers precision, efficiency, and scalability, solidifying its position as a go-to solution for engineers.