CD74HCT174M

Overview

The CD74HCT174M is a high-speed CMOS logic device manufactured by Texas Instruments, belonging to the 74HCT series. It functions as a hex D-type flip-flop with positive-edge triggering and an asynchronous master reset. The component operates within a supply voltage range of 4.5 V to 5.5 V. It features a maximum propagation delay of 40 ns at 4.5 V with a 50 pF load. The output drive capability provides 4 mA for both high and low states. The static current consumption is specified at 8 µA. The device is housed in a 16-SOIC package with a width of 0.154 inches (3.90 mm). It supports surface mount installation and operates across a temperature range of -55°C to 125°C.

Feature Summary

• Hex D-type flip-flop architecture with positive-edge clock triggering
• Asynchronous master reset functionality for immediate state initialization
• CMOS outputs capable of driving up to 4 mA in both high and low states
• Wide operating temperature range suitable for industrial environments

Applications

• Parallel-to-serial data conversion circuits
• Shift register configurations for data storage and transfer
• General-purpose digital memory elements in control systems
• Timing and synchronization logic in microprocessor interfaces

Procurement Notes

Verify the specific suffix associated with the part number to confirm packaging type, such as tape-and-reel or tube configuration. Confirm RoHS compliance status and moisture sensitivity level prior to ordering. Ensure the supplier source matches the manufacturer specifications for the 74HCT series. Check for any product change notices regarding pinout or electrical characteristics updates.

Selection Notes

Select this component when a hex D-type flip-flop with HCT-compatible input levels is required. The 4.5 V to 5.5 V supply range ensures compatibility with standard 5 V logic systems. Consider the 40 ns propagation delay for timing constraints in the target circuit. The 16-SOIC package facilitates surface-mount assembly. Evaluate the 4 mA output current against the load requirements of connected downstream components.

Part Context

This device is part of the Texas Instruments 74HCT logic family, designed to bridge TTL and CMOS technologies. The 74HCT174 variant specifically provides six independent D-type flip-flops in a single package. It serves as a fundamental building block for sequential logic design. The SOIC-16 footprint allows for compact PCB layouts in dense electronic assemblies requiring multiple storage elements.

Replacement Considerations

• CD74HCT174MT
• CD74HCT174M96
• CD74HCT174M96E4
• CD74HCT174MG4