74F545SCX

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74F545SCX is an octal bus transceiver featuring three-state outputs. It provides bidirectional data transmission between two buses, controlled by a direction input and an output enable signal. The device operates with a supply voltage range of 4.75V to 5.25V. Key electrical characteristics include a propagation delay of typically 10ns and a high-impedance state when disabled. It utilizes standard TTL logic levels for compatibility with various digital systems.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Bidirectional octal bus transceiver architecture
• Three-state output capability for bus isolation
• Direction control via dedicated input pin
• Output enable functionality for power management

Buffers, Drivers, Receivers, Transceivers Applications

• Memory mapping applications
• I/O port expansion in microprocessor systems
• Bus-oriented memory and control signaling
• Data acquisition systems requiring bidirectional transfer

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'SCX' against manufacturer documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing board layout constraints regarding SOIC-20 footprint. Cross-reference RoHS compliance status with current regulatory requirements for your region before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional octal data transfer with three-state outputs is required. Consider the 74F series speed versus power trade-offs compared to other logic families. Verify that the operating voltage matches the system's 5V rail. Check input/output voltage levels to ensure compatibility with connected devices.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Fairchild 74F series of high-speed TTL logic components. The 74F545 is a widely used octal transceiver in legacy and industrial designs. It serves as a critical interface element in systems requiring isolated bidirectional communication between processors and peripheral devices or memory banks.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Equivalent parts include the SN74F545 from Texas Instruments or MC74F545 from ON Semiconductor. Verify pinout compatibility and electrical parameters such as propagation delay and drive strength. Ensure the replacement supports the same SOIC-20 package if board space is constrained.