74ACTQ373SCX

Latches Overview

The onsemi 74ACTQ373SCX is an octal transparent latch with 3-STATE outputs, part of the Quiet Series logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and supports data inputs (D0–D7), Latch Enable (LE), and Output Enable (OE). The device features 24 mA output drive capability and guarantees simultaneous switching noise levels. It utilizes GTO output control and undershoot correction for superior dynamic threshold performance. The component is housed in a 20-Lead Small Outline Integrated Circuit (SOIC) package.

Latches Feature Summary

• Utilizes Quiet Series technology to guarantee quiet output switching and improved dynamic threshold performance.
• Features GTO output control and undershoot corrector alongside a split ground bus for enhanced signal integrity.
• Provides guaranteed pin-to-pin skew AC performance and improved latch-up immunity.
• Includes eight D-type latches with 3-STATE outputs suitable for bus organized system applications.

Latches Applications

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

Latches Procurement Notes

Verify that the ordering code includes the 'X' suffix to confirm availability in Tape and Reel packaging. Confirm the specific package variant matches the required footprint, as the SC designation corresponds to the 20-Lead SOIC JEDEC MS-013 wide body format. Ensure compatibility with the 4.5 V to 5.5 V operating voltage range for ACTQ devices before integration.

Latches Selection Notes

Select this component when designing systems requiring octal latching with high-speed 3-STATE outputs. The Quiet Series technology is appropriate for environments sensitive to simultaneous switching noise. Verify that the 20-Lead SOIC package fits the board layout constraints. Ensure the design accommodates the specified propagation delays and setup/hold times under the recommended operating conditions.

Latches Part Context

This device belongs to the 74ACQ/ACTQ series of octal transparent latches manufactured by Fairchild Semiconductor, now part of onsemi. The ACTQ variant specifically targets 5V logic applications with faster propagation delays compared to standard AC/ACT counterparts. The SCX suffix indicates the SOIC package configuration supplied in tape and reel format for automated assembly processes.

Latches Replacement Considerations

Direct substitutes include other 74ACTQ373 variants from different manufacturers or legacy packages such as SOP or PDIP if pinout compatibility is maintained. Verify that replacement parts support the same 3-STATE output functionality and 24 mA drive current specifications.