74ACTQ573SC

Latches Overview

The onsemi 74ACTQ573SC is an octal latch with 3-STATE outputs manufactured using FACT Quiet Series technology. It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature from -40°C to +85°C. The device features buffered common Latch Enable (LE) and Output Enable (OE) inputs, with data inputs and outputs positioned on opposite sides of the package. Propagation delay ranges from 2.0ns to 9.0ns at 5.0V with a 50pF load. Outputs source and sink up to 24mA, while quiescent supply current is limited to 40.0µA maximum.

Latches Feature Summary

• Utilizes FACT Quiet Series technology for guaranteed simultaneous switching noise levels and improved dynamic threshold performance.
• Features GTO output control and undershoot correction alongside a split ground bus for superior signal integrity.
• Provides high input impedance and low power consumption characteristics typical of advanced CMOS logic families.

Latches Applications

• High-speed data buffering in microprocessor systems
• Register applications requiring transparent latch functionality
• Bus-oriented memory interface circuits

Latches Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm the specific ordering code matches the required package type and suffix. Ensure compliance with RoHS directives if applicable to the target assembly process. Review absolute maximum ratings to prevent damage during handling or operation.

Latches Selection Notes

Select this component when simultaneous switching noise reduction is critical for system stability. The opposite-side pinout facilitates easier routing in dense PCB layouts compared to standard octal latches. Ensure the design environment stays within the specified 4.5V to 5.5V supply range to maintain guaranteed AC electrical characteristics and leakage limits.

Latches Part Context

This device belongs to the 74ACQ/ACTQ family of octal latches. It is functionally identical to the 74ACQ/ACTQ373 but differs in pin configuration, placing inputs and outputs on opposite sides of the package. This layout optimizes trace routing for microprocessor interfaces. The SC suffix specifically denotes the 20-Lead Small Outline Integrated Circuit package.

Latches Replacement Considerations

The 74ACTQ573SJ serves as a direct functional substitute offering the same logic operations in a different package format.

Latches FAQ

How does the 74ACTQ573SC handle simultaneous switching noise?

It utilizes FACT Quiet Series technology, which includes GTO output control and undershoot correction to guarantee quiet output switching and improved dynamic threshold performance.

What is the relationship between the 74ACTQ573SC and the 74ACTQ373?

They are functionally identical octal latches with 3-STATE outputs; however, the 74ACTQ573SC has its inputs and outputs located on opposite sides of the package to facilitate easier interfacing.