74VHC174TTR

Overview

The STMicroelectronics 74VHC174TTR is an advanced high-speed CMOS hex D-type flip-flop with a master clear function. Fabricated using sub-micron silicon gate and double-layer metal wiring C2MOS technology, it operates within a supply voltage range of 2 V to 5.5 V. The device features positive edge triggering and provides non-inverted outputs with a maximum clock frequency of 120 MHz. It delivers output currents of 8 mA for both high and low states while maintaining a quiescent current of 4 µA. Inputs and outputs include protection circuits offering 2 kV ESD immunity against static discharge and transient excess voltage.

Feature Summary

• Hex D-type flip-flop configuration with integrated master clear functionality
• Advanced high-speed CMOS construction enabling operation up to 120 MHz
• Robust electrostatic discharge protection providing 2 kV immunity on all pins

Applications

• High-speed digital logic data storage systems
• Parallel-to-serial data conversion circuits
• Shift register implementations in communication interfaces

Procurement Notes

Verify the obsolete status of this specific part number before initiating procurement processes. Confirm that the TTR suffix corresponds to the required tape and reel packaging format for automated assembly lines. Ensure compatibility with existing PCB footprints designated for 16-TSSOP packages. Validate that the 2 V to 5.5 V operating range aligns with the target system power supply specifications to prevent functional failure.

Selection Notes

Select this component when a hex D-type flip-flop with a global reset capability is required in space-constrained designs. The 16-TSSOP package offers a compact solution for surface-mount applications. Consider the 8 mA drive strength for moderate load requirements without external buffering. The wide supply voltage range allows flexibility in interfacing with various logic families operating between 2 V and 5.5 V.

Part Context

This component belongs to the 74VHC series of advanced high-speed CMOS logic devices manufactured by STMicroelectronics. The series utilizes sub-micron technology to achieve performance comparable to faster logic families while maintaining lower power consumption. The 74VHC174 specifically implements a hex D-type flip-flop architecture, distinguishing itself from standard 74HC variants through enhanced speed characteristics and improved noise immunity suitable for demanding digital environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify cross-references with other manufacturers' 74VHC174 equivalents ensuring pinout and electrical parameter compatibility.