74ACQ373SJ

Latches Overview

The onsemi MM74ACQ373SJ is an octal transparent D-type latch featuring three-state outputs, housed in a 20-lead Small Outline Package (SOP) with a 5.3mm width. Designed for bus-organized systems, it utilizes Quiet Series technology to ensure low simultaneous switching noise and improved dynamic threshold performance. The device operates within a supply voltage range of 2.0V to 6.0V and supports an operating temperature range from -40°C to +85°C. It provides high drive capability with outputs sourcing and sinking 24 mA.

Latches Feature Summary

• Utilizes Fairchild Quiet Series technology to guarantee quiet output switching and superior dynamic threshold performance.
• Features GTO output control and undershoot correction mechanisms alongside a split ground bus architecture.
• Provides guaranteed pin-to-pin skew AC performance and enhanced latch-up immunity.
• Offers eight latches in a single package with three-state outputs suitable for driving bus lines or buffering memory address registers.

Latches Applications

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

Latches Procurement Notes

Verify the specific ordering code suffix 'SJ' corresponds to the 20-lead SOP package (M20D) as defined in the datasheet. Confirm that the component meets the required environmental specifications for the intended operating temperature range. Ensure compatibility with the target logic family voltage levels before integration into the design.

Latches Selection Notes

Select this component when low noise and high-speed performance are critical for bus-based architectures. The Quiet Series technology distinguishes it from standard AC/ACT variants by reducing ICC and IOZ significantly. Consider the 20-SOP package constraints and verify that the 24 mA output drive current aligns with the load requirements of the connected circuitry.

Latches Part Context

This part belongs to the 74ACQ373 series, which represents the Quiet Series variant of the standard octal latch. It shares functional similarities with the 74AC373 and 74ACT373 but incorporates advanced noise reduction features. The 'SJ' suffix specifically denotes the EIAJ TYPE II 20-Lead Small Outline Package format.

Latches Replacement Considerations

Direct substitutes include other manufacturers' 74ACQ373 equivalents in the same SOP package. Verify pinout compatibility and electrical characteristics against the original datasheet specifications to ensure seamless integration without circuit modification.