CD74FCT541SM

Overview

The CD74FCT541SM is an 8-bit bus driver from the FCT series manufactured by Harris Corporation. It features true outputs and a 3-state capability controlled by a low-active enable signal. The device utilizes CMOS technology and is housed in a 20-pin Small Outline (SOIC) package. It operates at a supply voltage of 5 V with a maximum load capacitance of 50 pF. The component supports a maximum output current of 64 mA and functions within a temperature range of -40 °C to 85 °C.

Feature Summary

• Provides non-inverting buffering for eight digital signals simultaneously
• Features three-state outputs to isolate the bus when disabled
• Incorporates bus hold inputs to maintain stable logic levels without external pull-up resistors

Applications

• High-speed data bus buffering in computer systems
• Clock distribution networks requiring signal isolation
• Memory interface circuits for address and data lines

Procurement Notes

Verify the specific manufacturer origin, as Harris Corporation's semiconductor assets were acquired by other entities. Confirm the package type matches the SOIC-20 designation and ensure the RoHS compliance status aligns with project requirements, as older stock may not meet current environmental standards. Cross-reference the datasheet revision to confirm pinout compatibility.

Selection Notes

Select this component for applications requiring high-speed 8-bit parallel data transmission with tri-state control. The FCT series offers faster switching speeds compared to standard TTL or HCT logic families. Ensure the design accommodates the 5 V supply requirement and verify that the thermal dissipation capabilities of the SOIC-20 package are sufficient for the intended operating environment.

Part Context

This part belongs to the Harris FCT (Fast CMOS) family, designed to bridge the performance gap between standard CMOS and bipolar TTL technologies. The CD74 prefix indicates commercial grade temperature ratings. The SM suffix typically denotes the small outline plastic package variant, distinguishing it from through-hole DIP versions like the CD74FCT541ATE.