CY74FCT240TSOCT

Overview

The CY74FCT240TSOCT is an octal buffer and line driver manufactured by Texas Instruments, belonging to the FCT logic series. It features eight inverting channels with three-state outputs housed in a 20-SOIC 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 4.8 ns at 5 V, high-level output current of -32 mA, and low-level output current of 64 mA. It supports surface-mount installation and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides octal buffering with inverting polarity for signal integrity
• Features three-state outputs for bus-oriented memory and clock driving
• Utilizes CMOS technology for low static power consumption

Applications

• Bus-oriented memory applications
• Clock driver circuits
• Memory register drivers

Procurement Notes

Verify the specific suffix 'TSOCT' against the manufacturer's official datasheet to confirm the exact package type (SOIC-20) and tape-and-reel packaging configuration. Ensure compatibility with standard 20-pin SOIC footprints during PCB layout. Confirm RoHS compliance status through the latest component documentation before finalizing procurement specifications.

Selection Notes

Select this component when designing systems requiring octal inverting buffers with high drive capability. The FCT series offers speed comparable to LS-TTL but with CMOS power efficiency. Consider the 4.8 ns propagation delay and 64 mA low-level sink current for driving heavy capacitive loads on data buses or clock lines within the specified 5V logic family constraints.

Part Context

This part belongs to the CY74FCT240T series of octal buffers and line drivers. It is functionally similar to other variants like the CY74FCT240ATSOCT, differing primarily in manufacturing lot or minor specification tolerances rather than core architecture. The component serves as a critical interface element in digital logic designs requiring signal inversion and bus isolation.

Replacement Considerations

The CY74FCT240CTSOCT is listed as obsolete with the CY74FCT240ATSOCT identified as a similar replacement. Verify pinout and electrical characteristics match before substituting.