QS74FCT843ATSO

Latches Overview

The QS74FCT843ATSO is a bus driver from the FCT series manufactured by Quality Semiconductor. It features a single function with nine-bit width and true output polarity. The device utilizes CMOS technology and is housed in a CQCC28 (LCC-28) package. Key electrical parameters include a propagation delay of 8 ns, an operating temperature range from -55 °C to 70 °C, and a supply voltage range of 4.75 V to 5.25 V. It supports three-state outputs and includes clear and preset functionalities.

Latches Feature Summary

• Provides nine-bit bus driving capability with true output polarity for signal transmission.
• Integrates clear and preset functions for direct control of output states.
• Utilizes CMOS technology within the FCT series for high-speed performance.
• Features three-state outputs to facilitate bus line management.

Latches Applications

• High-speed data bus interfacing in digital systems
• Buffering signals in memory architectures
• Clock distribution networks requiring precise timing

Latches Procurement Notes

Verify the manufacturer designation as Quality Semiconductor or Rochester Electronics, as sourcing channels may vary. Confirm the LCC-28 ceramic package specification matches system requirements. Ensure the supply voltage range of 4.75 V to 5.25 V aligns with the target circuit design. Check for RoHS compliance status if environmental regulations apply to the deployment environment.

Latches Selection Notes

Select this component when a nine-bit wide bus driver with true output polarity is required. The FCT series offers compatibility with TTL input levels while utilizing CMOS technology. Consider the LCC-28 package form factor for board layout constraints. Verify that the 8 ns propagation delay meets the timing specifications of the application.

Latches Part Context

This part belongs to the FCT logic family, which bridges Fast CMOS and Schottky TTL technologies. It serves as a bus driver variant within the broader 74FCT product line. The specific model QS74FCT843ATSO denotes the nine-bit configuration with integrated control features.

Latches Replacement Considerations

The IDT74FCT843BL is a documented equivalent part number for this component. Verify pinout and electrical specifications before substitution to ensure functional compatibility.