74LVX574MX

Overview

The onsemi 74LVX574MX is an obsolete octal D-type flip-flop featuring positive-edge triggering and three-state outputs. It operates within a supply voltage range of 2V to 3.6V, with a maximum clock frequency of 75 MHz. The device exhibits a typical propagation delay of 16.7ns at 3.3V with a 50pF load. It provides symmetric output drive currents of 4mA for both high and low states, while maintaining a low static current consumption of 4µA. Packaged in a 20-SOIC surface-mount format, it supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Octal D-type configuration with positive-edge clock triggering
• Three-state non-inverting outputs for bus-oriented applications
• Low power CMOS technology ensuring minimal static current draw

Applications

• Parallel data storage and buffering in digital systems
• Bus-oriented memory register implementations
• High-speed data transfer interfaces requiring tri-state control

Procurement Notes

This component is officially designated as obsolete and no longer manufactured by onsemi. Procurement must rely on aftermarket distributors or surplus stock, which may involve higher costs or limited availability. Verify part authenticity and condition carefully when sourcing from third-party vendors, as original factory production has ceased entirely.

Selection Notes

Engineers should evaluate alternative active components due to the discontinued status of this specific part number. Consider variants such as the MC74LVX574DWR2G for pin-compatible upgrades within the same logic family. Ensure new selections match the required voltage levels, package dimensions, and performance specifications to maintain system integrity without redesigning the PCB layout.

Part Context

Belonging to the 74LVX series, this integrated circuit represents a low-voltage CMOS logic solution designed for portable and battery-operated applications. The 74LVX574MX specifically addresses the need for high-density data latching in compact form factors, utilizing the standard 20-SOIC footprint common across many legacy digital logic designs.

Replacement Considerations

Public confirmed substitute part numbers include MC74LVX574DWR2G (onsemi) and SN74AHC574DWR (Texas Instruments). These alternatives offer similar functional characteristics but require verification of electrical parameters and packaging compatibility before integration into existing designs.