74HCT174D – NXP

Overview

The Nexperia 74HCT174D is a high-speed hex D-type flip-flop designed for synchronous data storage and transfer in digital systems. Its primary function is to capture and hold data on the rising edge of the clock signal, offering a robust solution for state machine implementation and data buffering. A critical design consideration for HCT logic families, including the 74HCT174D, is managing the trade-off between TTL compatibility and CMOS speed; while offering improved noise immunity and lower power consumption than pure TTL, careful impedance matching and termination are essential in high-frequency applications to mitigate signal integrity issues and prevent ringing, especially when driving capacitive loads.

Key Features

• Logic Type: D-Type Edge Triggered Flip-Flop
• Logic Family: HCT (High-Speed CMOS-TTL)
• Number of Circuits: 6 Independent Flip-Flops
• Propagation Delay Time: 18 ns (typical)
• Operating Supply Voltage: 4.5 V to 5.5 V
• Package: SOIC-16 (10 mm x 4 mm x 1.45 mm)

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Synchronous data buffering in microcontrollers and FPGAs
• State register implementation in digital control systems
• Frequency division and waveform generation circuits
• Shift register construction for serial-to-parallel conversion