CY74FCT257CTDR

Overview

The CY74FCT257CTDR is a quad 2-input data selector/multiplexer from Texas Instruments' FCT logic series. It features four independent multiplexers with three-state outputs, housed in a 16-pin SOIC package. The device operates within a voltage range of 4.75 V to 5.25 V and supports surface-mount installation. It functions across an industrial temperature range of -40°C to +85°C. Propagation delay is specified at 6 ns, ensuring efficient signal routing for high-speed digital applications requiring precise data selection capabilities.

Feature Summary

• Integrates four independent 2-to-1 multiplexers into a single compact package
• Provides three-state output capability for effective bus line driving and isolation
• Utilizes FCT CMOS technology to achieve low power consumption alongside high-speed switching performance

Applications

• Data routing in digital communication systems
• Address decoding and selection circuits
• Signal path switching in test and measurement equipment

Procurement Notes

Verify the specific suffix 'CTDR' against official Texas Instruments documentation to confirm the exact tape-and-reel packaging configuration and moisture sensitivity level. Ensure the order matches the required operating temperature range and electrical specifications defined in the current datasheet revision before finalizing procurement.

Selection Notes

Select this component when designing systems requiring multiple independent data paths with tri-state control. Compare propagation delays and output drive strengths against alternative FCT series devices to ensure compatibility with system timing requirements and load conditions.

Part Context

This part belongs to the CY74FCT257 family of multiplexers manufactured by Texas Instruments. It shares functional similarities with other FCT series logic components but is distinguished by its specific quad configuration and three-state output architecture designed for versatile digital signal management tasks.

Replacement Considerations

Consult official substitution guides for compatible alternatives such as the SN74FCT257 series or equivalent parts from other manufacturers that meet identical pinout and electrical specification requirements.