CY74FCT257TQC

Overview

The CY74FCT257TQC is a quad multiplexer from the FCT logic series, manufactured by Texas Instruments. It features four independent 2-input data selectors with three-state outputs in a 16-pin SSOP package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports an operating temperature range from -40°C to +85°C. Propagation delay is specified at 6 ns. It is designed for high-speed digital signal routing applications requiring precise data selection capabilities.

Feature Summary

• Integrates four independent 2-to-1 multiplexers within a single integrated circuit
• Provides three-state output capability for efficient bus-oriented communication
• Utilizes FCT CMOS technology to ensure high-speed switching performance

Applications

• Data routing in high-speed digital systems
• Bus-oriented memory addressing schemes
• Signal path selection in telecommunications equipment

Procurement Notes

Verify the specific suffix 'TQC' against official Texas Instruments documentation to confirm the exact tape-and-reel packaging configuration and moisture sensitivity level. Ensure the component matches the required RoHS compliance standards for your assembly process. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component when designing circuits that require multiple independent data paths with controlled output impedance. The FCT series offers compatibility with standard TTL logic levels while providing CMOS power efficiency. Consider the 16-pin SSOP footprint constraints during PCB layout. Verify that the system's voltage requirements align strictly with the 4.75 V to 5.25 V operational window.

Part Context

This multiplexer belongs to the broader CY74FCT family of high-speed logic devices. It shares functional similarities with other quad multiplexers like the CY74FCT157 but differs in output drive characteristics and propagation delays. The FCT series bridges the performance gap between standard 74LS and advanced AC/HC logic families, offering faster switching speeds with comparable power consumption profiles.