CY74FCT2541ATQCTE4

Overview

The CY74FCT2541ATQCTE4 is an octal line driver and MOS driver manufactured by Texas Instruments, belonging to the FCT logic series. It features non-inverting polarity with three-state outputs housed in a QSOP-20 package. The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical parameters include a high-level output current of -15 mA and a low-level output current of 12 mA. Static current consumption is specified at 200 nA, while operating power current reaches 3.3 mA. Propagation delay is rated at 8 ns at 5 V. The component supports surface mount installation and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Provides eight-channel unidirectional buffering for line driving applications
• Features three-state outputs allowing bus-oriented system design
• Supports direct interface with TTL and CMOS logic families

Applications

• Bus-oriented systems requiring signal buffering
• Clock drivers for high-speed digital circuits
• Memory address drivers in computer architectures

Procurement Notes

Verify the specific suffix E4 against official Texas Instruments documentation to confirm compliance details and manufacturing origin. Ensure the QSOP-20 package variant matches the required PCB footprint. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement specifications.

Selection Notes

Select this component when an octal buffer with three-state capability is required for 5V logic systems. The FCT series offers speed comparable to LS-TTL with CMOS power efficiency. Consider the propagation delay and drive strength relative to load capacitance requirements. Verify thermal performance within the specified industrial temperature range during circuit design.

Part Context

This part belongs to the CY74FCT2541T family of octal buffers and line drivers. Similar variants include CY74FCT2541CTSOC and CY74FCT2541ATSOCG4, which differ primarily in packaging such as SOIC or SSOP configurations. These components share identical logical functionality but vary in physical dimensions and mounting styles suitable for different board space constraints.

Replacement Considerations

Direct substitutes within the same family include CY74FCT2541ATQCT and CY74FCT2541ATSO. Verify pin compatibility and package dimensions when replacing. Ensure the alternative part number maintains the same three-state output configuration and voltage specifications.