QS74FCT16373ATPA

Latches Overview

The QS74FCT16373ATPA is an FCT series dual 8-bit transparent latch with true outputs, housed in a 48-pin TSSOP package. It operates on a single 5V supply and features three-state outputs. The device supports a wide operating temperature range from -40°C to 85°C. Key electrical characteristics include a propagation delay of approximately 8 ns and a load capacitance of 50 pF. It is designed for high-speed digital applications requiring reliable data storage and bus interfacing.

Latches Feature Summary

• Dual 8-bit architecture providing two independent latching channels within a single component
• Three-state output capability enabling efficient bus sharing and system integration
• True output polarity ensuring direct signal transmission without inversion
• Wide industrial temperature rating suitable for demanding environmental conditions

Latches Applications

• High-speed data bus buffering and interface circuits
• Parallel data storage in digital communication systems
• Address latching for memory and peripheral devices
• General-purpose logic buffering in industrial control equipment

Latches Procurement Notes

Verify the manufacturer designation as Quality Semiconductor or its successor entities, noting that FCT technology assets have transitioned through various acquisitions. Confirm the specific suffix 'ATPA' corresponds to the correct tape-and-reel packaging and temperature grade. Ensure compliance with current RoHS directives, as older production runs may differ. Cross-reference the datasheet revision date to confirm pinout and electrical specifications match your design requirements before finalizing orders.

Latches Selection Notes

Select this component when a dual-channel 8-bit latch is required for 5V CMOS logic families. The FCT technology offers faster switching speeds compared to standard 74LS series while maintaining compatible voltage levels. Consider the 48-pin TSSOP package constraints for PCB layout. Evaluate the 8 ns propagation delay against your system timing budget. This part is suitable for designs needing isolated latching functions without the complexity of serial interfaces.

Latches Part Context

This device belongs to the Fast CMOS (FCT) logic family, which bridges the performance gap between TTL and CMOS technologies. The 74FCT16373 variant specifically provides dual 8-bit latching functionality. Quality Semiconductor was a prominent manufacturer of this technology before industry consolidations. The component serves as a fundamental building block for parallel data handling in mid-1990s to early-2000s digital architectures.

Latches Replacement Considerations

Direct equivalents include the IDT74FCT16373ATPA and Renesas CD74FCT16373DTSM. Verify pin compatibility and electrical parameters such as propagation delay and output drive strength. Check for package variations like TFSOP versus TSSOP if mechanical fit is critical. Ensure the replacement source confirms the same functional truth table and power supply requirements.