74FCT540ATSOG

Buffers, Drivers, Receivers, Transceivers Overview

The IDT74FCT540ATSOG is an octal buffer and line driver belonging to the 74FCT logic family. It features eight inverting outputs with three-state capability, housed in a 20-pin SOIC package. The device operates on a single supply voltage ranging from 4.75V to 5.25V. It provides high drive outputs with a maximum low-level output current of 64mA and a high-level output current of 15mA. The component supports a wide operating temperature range from -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight inverting buffer channels with three-state output control for bus isolation.
• Delivers high drive strength suitable for driving heavy capacitive loads on system buses.
• Ensures true TTL input and output compatibility within the specified voltage range.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address and data bus buffering in computer systems
• Clock distribution networks requiring signal inversion and isolation
• High-speed digital interface circuits connecting microprocessors to peripherals

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'ATSOG' against the manufacturer's latest documentation to confirm pinout and electrical characteristics. Confirm RoHS compliance status as Renesas Electronics has managed this product line following acquisitions. Check for end-of-life notices or alternative package options if long-term supply stability is required for production.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal inverting buffer with three-state functionality is needed for 5V logic systems. Ensure the design requires TTL-compatible inputs and outputs. Consider the 20-SOIC package constraints regarding thermal dissipation and board space. Verify that the 15mA high-level drive current meets the load requirements of the destination circuitry.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74FCT series, which bridges CMOS technology with TTL performance levels. Integrated Device Technology, now part of Renesas Electronics, produced this line for high-speed digital applications. The 74FCT540 specifically addresses the need for robust bus drivers in legacy and mixed-voltage digital environments.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers include IDT74FCT540ATSO and IDT74FCT540ATSOG8. Verify pin compatibility and electrical specifications before substitution. Note that some variants may have different packaging quantities or minor mechanical differences.