CD54HCT74F

Overview

The CD54HCT74F is a dual positive-edge-triggered D flip-flop with set and reset functions, manufactured by Texas Instruments. It belongs to the HCT logic series, ensuring compatibility with LSTTL inputs while maintaining CMOS performance characteristics. The device operates within a supply voltage range of 2V to 6V and features low static power consumption. Designed for robust operation, it supports wide temperature ranges suitable for industrial applications. The component is housed in a 14-pin CDIP package, providing reliable surface or through-hole mounting options for various electronic circuit designs requiring high-speed data storage and transfer capabilities.

Feature Summary

• Dual positive-edge-triggered D flip-flops with dedicated set and reset inputs
• LSTTL input logic compatibility ensures seamless integration with standard logic families
• CMOS input logic compatibility with low input current leakage
• Buffered inputs provide enhanced signal integrity and noise immunity

Applications

• High-speed data storage circuits
• Shift register implementations
• Parallel-to-serial data conversion systems
• Timing control logic in industrial equipment

Procurement Notes

Verify the specific package variant and temperature grade against project requirements before ordering. Confirm RoHS compliance status and environmental documentation availability. Ensure the supplier provides authentic Texas Instruments components with proper traceability. Check for any recent product lifecycle notices or obsolescence warnings. Validate that the received parts match the exact part number and marking specifications.

Selection Notes

Select this component when dual independent flip-flops with asynchronous control are required. Consider its LSTTL compatibility for interfacing with legacy systems. Evaluate the operating temperature range against environmental conditions. Assess the package type suitability for PCB layout constraints. Compare propagation delays and power consumption against alternative logic families for optimal system performance.

Part Context

The CD54HCT74F is part of Texas Instruments' comprehensive HCT logic family, designed for high-speed digital applications. It complements other HCT devices like latches and buffers, offering consistent electrical characteristics across the series. This specific model focuses on sequential logic functions, providing essential data storage capabilities. Its design aligns with industry standards for reliability and performance in complex digital systems.

Replacement Considerations

Direct substitutes include equivalent dual D flip-flops from other manufacturers with matching pinouts and electrical specifications. Verify logical functionality, voltage levels, and package dimensions before substitution. Cross-reference datasheets for timing parameters and input/output characteristics. Ensure thermal and mechanical compatibility for existing board layouts.