74LCX574MSA

Overview

The Fairchild Semiconductor 74LCX574MSA is an octal D-type flip-flop featuring three-state outputs, designed for low-voltage operation within a 2V to 3.6V supply range. It utilizes the 74LCX logic series and is housed in a 20-SSOP package with a width of 5.30mm. The device provides non-inverting single-ended inputs and outputs, supporting surface-mount installation. It operates reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Octal D-type flip-flop architecture with eight independent data storage elements
• Three-state output capability enabling efficient bus-oriented system integration
• Low voltage CMOS technology optimized for 2V to 3.6V power supplies

Applications

• Bus-oriented data storage systems requiring tri-state control
• Portable electronic devices utilizing low-voltage power sources
• Microprocessor interface circuits for parallel data latching

Procurement Notes

Verify component authenticity through authorized distribution channels due to potential availability of obsolete or refurbished units. Confirm that the specific part number matches the required 20-SSOP package dimensions and electrical specifications. Ensure compliance with RoHS directives if environmental standards are mandatory for the intended application. Cross-reference datasheet revisions to confirm pinout consistency.

Selection Notes

Select this component when designing systems requiring octal data storage with tri-state bus compatibility at low voltages. Consider the 74LCX series characteristics for superior speed and low power consumption compared to older logic families. Evaluate the 20-SSOP package constraints against available PCB real estate. Verify that the 2V to 3.6V operating range aligns with the target system's power delivery capabilities.

Part Context

This component belongs to the 74LCX family of low-voltage CMOS logic devices, which are engineered for high-speed performance while minimizing power dissipation. The 74LCX574 variant specifically addresses applications needing multiple bits of registered data storage with controlled output impedance. It serves as a standard solution for digital signal processing tasks in portable and battery-operated equipment.

Replacement Considerations

Direct substitutes include SN74LVC574ADBR from Texas Instruments and CLVC374AQPWRG4Q1 from Texas Instruments. These alternatives offer similar functional characteristics but may require verification of pinout compatibility and electrical parameter alignment before implementation.