74ACTQ373SJX

Latches Overview

The onsemi 74ACTQ373SJX is an octal transparent latch with 3-STATE outputs, part of the Quiet Series utilizing Fairchild FACT technology. It features eight D-type latches in a single package for bus-organized systems. The device operates at a supply voltage of 4.5V to 5.5V and supports surface-mount SOP-20 packaging. Key electrical parameters include propagation delays of 8.0 ns (Dn to On) and 9.0 ns (LE to On) at 5.0V. Outputs source/sink 24 mA, while quiescent current is limited to 40 µA.

Latches Feature Summary

• Utilizes Quiet Series technology to guarantee quiet output switching and improved dynamic threshold performance.
• Features GTO output control and undershoot corrector for superior noise immunity.
• Includes split ground bus design to minimize simultaneous switching noise.
• Provides guaranteed pin-to-pin skew AC performance.

Latches Applications

• Bus organized system applications
• Driving bus lines
• Buffering memory address registers

Latches Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm datasheet revision status and RoHS compliance documentation prior to integration. Ensure proper handling procedures are followed due to surface mount packaging requirements. Validate operating conditions against absolute maximum ratings to prevent device damage during implementation.

Latches Selection Notes

Select this component for designs requiring low noise and high-speed data latching within standard 5V logic families. Consider the specific SOP-20 footprint constraints and thermal management needs. Evaluate the 24 mA drive capability against load requirements. Compare propagation delay specifications with system timing budgets to ensure signal integrity across all八路 outputs.

Latches Part Context

This device belongs to the 74ACQ/ACTQ series of octal latches. It shares functional similarities with the standard 74AC373 but offers enhanced noise characteristics through specialized internal circuitry. The 'SJX' suffix indicates a Small Outline Package variant supplied in tape and reel format for automated assembly processes.

Latches Replacement Considerations

Direct substitutes include other 74ACT373 variants from different manufacturers such as Texas Instruments SN74ACT373NSR or CD74ACT373M96. Verify pin compatibility and electrical parameter alignment before substitution.

Latches FAQ

How does the Quiet Series technology affect output noise?

It guarantees quiet output switching by reducing simultaneous switching noise levels and improving dynamic threshold performance through GTO output control and undershoot correction.

What is the function of the Output Enable (OE) input?

When OE is LOW, the outputs are in the 2-state mode. When OE is HIGH, the outputs enter a high impedance state, isolating them from the bus without affecting the latched data.