74LCX574MTR

Overview

The STMicroelectronics 74LCX574MTR is an octal D-type flip-flop with three-state outputs, fabricated using advanced CMOS technology. It operates within a supply voltage range of 1.65V to 3.6V, supporting low-voltage digital systems. The device features non-inverted outputs and is designed for high-speed applications with propagation delays typically under 2ns at 3.3V. Packaged in a 20-SOIC surface-mount format, it ensures reliable performance across industrial temperature ranges. This component integrates standard logic functions suitable for data storage and bus holding applications.

Feature Summary

• Octal D-type flip-flop architecture providing eight independent data storage elements
• Three-state outputs allowing direct connection to system buses without additional drivers
• Low-voltage operation compatible with 1.65V to 3.6V power supplies
• High-speed switching capabilities optimized for modern digital communication interfaces

Applications

• Data register storage in microprocessor-based systems
• Bus holding circuits for bidirectional data lines
• Parallel-to-serial conversion modules
• Timing delay compensation in high-speed digital circuits

Procurement Notes

Verify the specific suffix 'MTR' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the operating voltage requirements align with the target system's 1.65V to 3.6V specification. Ensure compatibility with the 20-SOIC footprint during PCB layout validation. Check for any regional export control classifications or environmental compliance certifications relevant to the deployment location.

Selection Notes

Choose this component when designing low-power digital systems requiring octal storage with bus-compatible outputs. The 74LCX series offers superior speed-to-power ratios compared to older AC or HC families. Consider the 20-SOIC package dimensions for space-constrained designs. Validate input threshold levels against the driving source's output voltage characteristics to ensure proper logic level translation.

Part Context

This part belongs to the 74LCX family of low-voltage CMOS logic devices from STMicroelectronics. The LCX series is engineered for applications demanding high speed and low power consumption. It serves as a successor to earlier generation logic families, offering improved electrical characteristics while maintaining pin-out compatibility with certain legacy standards. The 74LCX574 specifically addresses the need for multi-bit data retention in portable and battery-operated electronics.

Replacement Considerations

Direct substitutes include the SN74LCX574DWR from Texas Instruments and the MC74LCX574DWR2G from onsemi. These alternatives share identical logical functionality and pin configurations. Verify that the replacement manufacturer's absolute maximum ratings match the design constraints. Ensure the substitute component is available in the required tape-and-reel packaging format.