74ACQ244SJ

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74ACQ244SJ is an octal buffer and line driver featuring three-state outputs, belonging to the Quiet Series. It utilizes advanced CMOS technology to provide high-speed signal buffering with low noise characteristics. The device is housed in a 20-pin Small Outline Package (SOP), specifically identified as SOP-20 or SOIC-20 in distributor records. It operates within a standard voltage range typical for AC series logic, designed for applications requiring efficient data bus management and interface isolation.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent non-inverting buffers
• Three-state output capability for effective bus line management
• Quiet Series design engineered to minimize switching noise and electromagnetic interference

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus buffering in computing systems
• Clock distribution and signal driving in communication equipment
• Memory interface circuits requiring low-noise performance

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'SJ' against manufacturer documentation to confirm package dimensions and tape/reel specifications. Ensure compatibility with existing PCB footprints by checking pin-out alignment. Confirm RoHS compliance status through official datasheets prior to procurement integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when low-noise performance is critical for high-speed digital interfaces. The AC series offers superior speed compared to standard TTL equivalents while maintaining CMOS power efficiency. Verify that the required drive current and propagation delay meet system timing constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AC logic family, representing an advancement over earlier 74HC technologies with faster switching speeds. The 'Q' designation indicates the Quiet Series variant, optimized for reduced ground bounce and supply noise. It serves as a direct functional replacement for standard octal bus drivers in legacy designs requiring upgraded noise immunity.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include the 74ACQ244D or 74ACQ244F from National Semiconductor, which share identical functional descriptions. Cross-reference pinouts and electrical characteristics to ensure seamless integration without circuit modification.