74FR244SJ

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74FR244SJ is an octal buffer and line driver featuring three-state outputs, manufactured under the 74FR series. It comprises two functional blocks, each handling four bits of data. The device operates within a supply voltage range of 4.5V to 5.5V and supports non-inverting logic. It provides high current drive capabilities with output currents specified at 15mA for high state and 64mA for low state. Designed for surface mount applications, it utilizes a 20-SOP package with a width of 5.30mm. The component functions within a temperature range of 0°C to 70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides octal buffering with three-state output control for bus-oriented applications
• Features high current sinking capability of 64mA for driving terminated transmission lines
• Offers non-inverting signal transmission with dual independent enable gates

Buffers, Drivers, Receivers, Transceivers Applications

• Memory system bus interfacing
• Microprocessor system data routing
• Communication systems signal buffering

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity as the 74FR244SJ is obsolete and no longer in production. Confirm that replacement parts such as SN74AS244ANSR or SN74F244NSR meet specific electrical requirements. Ensure compatibility with existing board layouts when selecting parameter-equivalent substitutes from manufacturers like Texas Instruments.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring robust bus drivers with high current drive strength. Consider the 20-SOP package constraints for surface mount assembly. Evaluate alternative logic families if lower power consumption or wider operating temperatures are required, noting that this part is discontinued.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74FR (Fast-Rapid) logic family, designed for high-speed digital applications. It serves as a unidirectional buffer, distinct from bidirectional transceivers like the 74FR245. The 74FR series combines the speed of Schottky TTL with improved power dissipation characteristics.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include SN74AS244ANSR, SN74BCT244NSR, SN74F241NSR, and SN74F244NSR from Texas Instruments.