74ACQ573SC

Latches Overview

The Fairchild Semiconductor 74ACQ573SC is a high-speed octal latch belonging to the ACQ/ACTQ series. It features buffered common Latch Enable (LE) and Output Enable (OE) inputs, providing tri-state outputs for effective bus driving. The device operates within a voltage range of 2.0V to 6.0V and supports data rates up to 100MHz. It is housed in a 20-pin SOIC package with an operating temperature range of -40°C to +85°C.

Latches Feature Summary

• High-speed octal D-type transparent latch design
• Buffered common Latch Enable and Output Enable inputs
• Tri-state outputs for efficient bus interfacing

Latches Applications

• High-performance memory mapping systems
• Clock-driven data registers
• Bus-oriented architectures requiring tri-state control

Latches Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as historical batches may vary. Check for obsolescence notices from ON Semiconductor, which acquired Fairchild's logic portfolio. Ensure packaging integrity matches specified SOIC-20 requirements for surface mount assembly processes.

Latches Selection Notes

Select this component when high-speed latching with tri-state capability is required in CMOS logic designs. Compare against standard AC series parts if buffering on enable lines is necessary. Consider ACTQ variants for improved noise immunity at lower voltages. Verify package compatibility with existing PCB footprints before integration into new designs.

Latches Part Context

This part belongs to the 74ACQ family, representing advanced CMOS technology with buffered control inputs. It serves as an evolution of the standard 74AC573, offering enhanced performance characteristics suitable for demanding digital applications. The component is part of Fairchild's extensive logic portfolio, now managed under ON Semiconductor following corporate restructuring.

Latches Replacement Considerations

Direct substitutes include the 74ACTQ573SC for improved noise margins. Cross-reference with other manufacturers' 74AC573 equivalents ensuring identical pinout and electrical specifications. Verify that replacement components maintain the same buffered enable input architecture and tri-state output functionality.