CY74FCT2541ATQCT

Overview

The CY74FCT2541ATQCT is an octal line driver and MOS driver manufactured by Texas Instruments, belonging to the FCT logic series. It features eight non-inverting inputs with three-state outputs housed in a 20-pin QSOP package. The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical parameters include a propagation delay of 8 ns at 5 V, 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. The component supports surface mount installation and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Provides octal buffering and line driving capabilities for system interconnects
• Features three-state outputs to facilitate bus-oriented architectures
• Designed for direct interface with TTL and CMOS logic families

Applications

• Bus-oriented systems requiring signal buffering
• Clock drivers and buffer circuits
• Memory address and data register drives

Procurement Notes

Verify the specific suffix 'ATQCT' against the manufacturer's official documentation to confirm the exact package type, temperature grade, and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the 20-lead QSOP form factor. Confirm moisture sensitivity level requirements during storage and handling procedures prior to assembly.

Selection Notes

Select this component when an octal buffer with three-state control is required for high-speed digital interfaces. The FCT series offers performance comparable to LS-TTL but with CMOS power consumption characteristics. Consider the 8 ns propagation delay and drive strength suitable for moderate fan-out applications. Verify that the 5V supply rail aligns with the target system design constraints.

Part Context

This part belongs to the CY74FCT2541T family of octal buffers and line drivers. Similar variants include the CY74FCT2541CTSOC in a SOIC package and the CY74FCT2541TQCTE4, which shares the same functional core but may differ in packaging or environmental compliance markings. All members of this series provide identical logical functionality with variations in physical footprint and thermal ratings.

Replacement Considerations

Direct substitutes within the same family include CY74FCT2541TQCTE4 and CY74FCT2541CTSOC. Cross-family replacements such as the CY74FCT2244CTQCT offer similar buffering but may exhibit different propagation delays or drive currents. Always validate pinout compatibility and electrical specifications before substituting.