74LVX574SJX

Overview

The onsemi 74LVX574SJX is an octal D-type flip-flop with 3-state outputs belonging to the LVX logic series. It operates within a supply voltage range of 2V to 3.6V and features a maximum propagation delay of 18ns at 3.3V with 50pF load. The device provides single-ended inputs and outputs, with output drive capabilities of -4mA (high) and 4mA (low). It is housed in a 20-SOP surface-mount package and supports a wide operating temperature range from -40°C to +85°C.

Feature Summary

• Octal D-type edge-triggered flip-flop architecture with non-inverting data path
• Three-state outputs for bus-oriented memory and communication applications
• Low quiescent current operation suitable for battery-powered systems
• CMOS construction ensuring high noise immunity and low power consumption

Applications

• Bus-oriented memory register implementations
• Communication equipment signal buffering
• Consumer electronics control logic
• Portable computing devices

Procurement Notes

Verify component authenticity through authorized distribution channels due to potential counterfeit risks. Confirm RoHS compliance status via official manufacturer documentation prior to integration. Validate package marking consistency against datasheet specifications. Ensure storage conditions adhere to moisture sensitivity level requirements. Review end-of-life notifications for long-term supply chain stability.

Selection Notes

Select this component for designs requiring low-voltage operation between 2V and 3.6V with moderate speed performance. Consider the 20-SOP package constraints for PCB layout and thermal management. Evaluate the 4mA output drive capability against load requirements. Compare propagation delay characteristics against system timing budgets. Assess compatibility with existing logic families in mixed-voltage environments.

Part Context

This part belongs to the 74LVX family of low-voltage CMOS logic devices manufactured by onsemi. The LVX series is designed for applications requiring operation below standard 5V levels while maintaining compatibility with various logic standards. The 74LVX574 variant specifically provides octal flip-flop functionality with three-state outputs, distinguishing it from non-buffered or non-three-state counterparts within the same logical family.

Replacement Considerations

Publicly confirmed substitute part numbers include SN74AHC574NSR and SN74LV574ADW from Texas Instruments. Verify pinout compatibility and electrical parameter alignment before substitution. Check for differences in output drive strength and propagation delay characteristics. Confirm package dimension tolerances match existing footprint requirements.