74FCT244PC

Buffers, Drivers, Receivers, Transceivers Overview

The National Semiconductor 74FCT244PC is an octal buffer and line driver featuring three-state outputs, housed in a 20-pin PDIP package. It operates within a supply voltage range of 4.75V to 5.25V. The device provides high-level output current of -15 mA and low-level output current of 64 mA. Static current consumption is 10 µA, with a maximum operating supply current of 5 mA. It functions reliably across temperatures from 0°C to 70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight non-inverting buffers or line drivers
• Three-state outputs for effective bus management and isolation
• High drive capability supporting heavy capacitive loads

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory and address drivers
• Clock drivers and buffering
• Bulk data transmission systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'PC' corresponds to the 20-pin plastic dual in-line package (PDIP) variant. Confirm the temperature grade matches the 0°C to 70°C commercial specification. Ensure compatibility with existing PCB footprints designed for standard DIP-20 components before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal, non-inverting buffer with three-state control is required for parallel data buses. It is suitable for applications needing moderate drive strength at 5V logic levels. Consider thermal dissipation requirements for the PDIP package if multiple channels are actively driven simultaneously.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the FCT (Fast CMOS Technology) logic family, offering speed comparable to Schottky TTL with lower power consumption. It serves as a direct replacement for older 74S244 devices in many designs, providing improved switching characteristics while maintaining pinout compatibility for legacy board upgrades.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The Renesas 74FCT244ATSOG8 is a functional equivalent but utilizes an SOIC-20 surface-mount package rather than the through-hole PDIP format. Verify mechanical fit and soldering capabilities before substituting.