CD74FCT573CTQM

Latches Overview

The CD74FCT573CTQM is an octal transparent D-type latch manufactured by Harris Corporation. It features eight non-inverting outputs with tri-state capability, housed in a 20-pin QSOP package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports surface-mount installation. It exhibits a propagation delay of 4.7 ns at 5 V, with low-level and high-level output currents rated at 32 mA and -32 mA respectively. The component functions as a single circuit logic latch with eight input lines.

Latches Feature Summary

• Octal transparent D-type latch configuration with tri-state outputs
• Non-inverting logic polarity for direct data transmission
• High drive capability supporting 32 mA output current loads

Latches Applications

• Parallel data storage in digital systems
• Bus interface buffering applications
• Register file implementations

Latches Procurement Notes

Verify the manufacturer designation carefully, as this component was originally produced by Harris Semiconductor before acquisition by Texas Instruments. Confirm that the specific ordering suffix corresponds to the QSOP-20 package variant. Ensure compliance with RoHS requirements if applicable to your assembly process. Cross-reference datasheet SCHS291 for complete electrical specifications and handling guidelines prior to integration.

Latches Selection Notes

Select this component when an octal latch with tri-state control is required for bus-oriented architectures. The FCT series offers CMOS compatibility with TTL-like speed performance. Consider the 20-QSOP package constraints for PCB layout. Verify that the 4.75 V to 5.25 V operating range aligns with the system power supply design. Evaluate thermal dissipation requirements based on the load conditions and ambient temperature limits.

Latches Part Context

This part belongs to the FCT logic family, which provides high-speed CMOS performance. Originally developed by Harris Semiconductor, these components were later integrated into Texas Instruments' portfolio. The CD74FCT573CTQM represents a specific commercial-grade variant designed for general-purpose digital logic applications requiring reliable data latching and bus isolation capabilities.

Latches Replacement Considerations

The CY74FCT573CTQCT serves as a verified substitute from Texas Instruments, offering identical functional specifications and pinout compatibility.