CY74FCT821BTSOC

Overview

The CY74FCT821BTSOC is a 10-bit bus interface flip-flop manufactured by Texas Instruments within the FCT logic series. It features 3-state outputs and operates on a single supply voltage ranging from 4.75 V to 5.25 V. The device utilizes a 24-pin SOIC package for surface mount installation. It supports TTL input levels and provides non-inverting data transfer. The component functions as a unidirectional bus driver with independent control, designed for high-speed digital applications requiring reliable data latching and transmission across ten parallel channels.

Feature Summary

• Provides 10-bit bidirectional data buffering with three-state output capability
• Features independent control inputs for flexible bus management
• Supports TTL-compatible input logic levels for direct interfacing
• Delivers high drive strength suitable for demanding bus loads

Applications

• High-speed data bus interfaces in computing systems
• Memory buffer circuits requiring 10-bit word width
• Industrial control systems with strict timing requirements
• Communication equipment utilizing parallel data transmission

Procurement Notes

Verify the specific suffix 'BTSOC' against official Texas Instruments documentation to confirm pinout compatibility and electrical characteristics. Ensure the procurement source provides valid RoHS compliance certificates. Cross-reference the manufacturer part number with current datasheets to validate manufacturing status and availability before finalizing orders.

Selection Notes

Select this component when a 10-bit wide bus interface is required rather than standard 8-bit alternatives. Consider the SOIC-24 package dimensions for PCB layout constraints. Evaluate the propagation delay specifications against system clock speeds to ensure signal integrity. Confirm that the operating temperature range meets the environmental conditions of the target application.

Part Context

This device belongs to the FCT logic family, which combines CMOS density with TTL speed. It serves as a specialized variant within the broader CY74FCT product line, focusing on wider data paths compared to common octal counterparts. The component addresses design needs for expanded bus architectures in legacy and modern digital systems alike.

Replacement Considerations

Check for CY74FCT821BT or CY74FCT821BTSOCE4 as potential functional equivalents. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Consult official replacement guides to ensure no functional degradation occurs during integration.