74FCT245ASCX

Buffers, Drivers, Receivers, Transceivers Overview

The National Semiconductor 74FCT245ASCX is an octal bus transceiver belonging to the FCT logic series. It features a single function with eight bits per element and non-inverting true output polarity. The device utilizes CMOS technology and provides three-state outputs for effective bus management. It operates within a supply voltage range of 4.75 V to 5.25 V, typically at 5 V. The component is housed in a 20-pin DSBGA package, designed for surface mount applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional data transfer capability with common direction control
• Three-state outputs ensuring safe parallel bus connections
• CMOS construction supporting low power consumption

Buffers, Drivers, Receivers, Transceivers Applications

• Memory mapping controllers
• Clock drivers
• Bus-oriented architectures

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer designation carefully, as Texas Instruments acquired National Semiconductor's logic business. Confirm the specific suffix 'ASCX' corresponds to the DSBGA package and tape-and-reel orientation if required by assembly processes. Ensure RoHS compliance status matches current regulatory requirements for the intended deployment region.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal transceiver with FCT speed characteristics is needed in a compact surface-mount form factor. The DSBGA package offers space efficiency compared to larger SOIC or DIP variants. Consider the 4.75V to 5.25V operating range to ensure compatibility with standard 5V logic systems requiring high drive strength and fast propagation delays.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the widely used 74FCT family, known for combining CMOS density with TTL-compatible speeds. The 74FCT245 variant specifically provides eight-bit bidirectional buffering. While originally from National Semiconductor, these parts are now often sourced through Texas Instruments channels following corporate acquisitions, maintaining functional equivalence across the lineage.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include the CY74FCT245TSOC from Texas Instruments in an SOIC-20 package and the 74FCT245AQSC also from Texas Instruments in a DSBGA package. Verify pinout compatibility and package dimensions before substituting to ensure mechanical fit on existing PCB layouts.