CY74FCT821CTQCT

Overview

The CY74FCT821CTQCT is a 10-bit bus-interface register manufactured by Texas Instruments, featuring positive-edge triggering and three-state outputs. It operates within a supply voltage range of 4.75 V to 5.25 V and supports a wide operating temperature range from -40°C to +85°C. The device utilizes CMOS logic technology and is housed in a 24-SSOP package with a width of 3.90 mm. It provides non-inverting data latching capabilities suitable for high-speed digital applications requiring reliable signal storage and transmission.

Feature Summary

• Provides 10-bit data latching functionality with positive-edge clock triggering
• Features three-state outputs for efficient bus interfacing and isolation
• Supports standard TTL input levels for broad compatibility

Applications

• Data storage in high-speed digital communication systems
• Bus interface circuits requiring temporary data retention
• Parallel-to-serial data conversion interfaces

Procurement Notes

Verify the specific ordering suffix to ensure the correct package type and moisture sensitivity level are selected. Confirm that the component meets RoHS compliance requirements for your assembly process. Check for any lead-free specifications if required by your manufacturing standards. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Selection Notes

Select this component when a 10-bit latch with three-state outputs is required for bus-oriented architectures. Consider the 24-SSOP package dimensions for PCB layout constraints. Evaluate the propagation delay characteristics against system timing requirements. Ensure the operating temperature range aligns with the environmental conditions of the final application.

Part Context

This part belongs to the Texas Instruments 74FCT logic family, designed for fast CMOS performance with TTL-compatible inputs. It serves as a fundamental building block for memory and buffering applications in digital electronics. The CY74FCT821 variant specifically addresses needs for wider data word storage compared to standard 8-bit counterparts.

Replacement Considerations

Direct substitutes may include other 10-bit FCT registers with similar pinouts and electrical characteristics. Verify functional equivalence regarding output drive strength and switching speeds before replacement.