74ACT244PC

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74ACT244PC is an octal buffer and line driver belonging to the 74ACT logic family. It features eight non-inverting buffers organized into two groups of four, each with a separate active-low output enable input. The device operates within a supply voltage range of 4.5 V to 5.5 V and provides three-state outputs capable of sourcing and sinking 24 mA. It utilizes a 20-pin PDIP package and supports through-hole mounting.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides high-density memory address driving and clock distribution capabilities
• Features TTL-compatible inputs for direct interfacing with standard logic families
• Offers reduced power dissipation compared to equivalent Bipolar Schottky TTL devices

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers in computer systems
• Clock drivers for timing signal distribution
• Bus-oriented transmitter and receiver interfaces

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific manufacturer origin, as Fairchild Semiconductor assets were acquired by onsemi. Confirm that the component matches the original Fairchild specifications rather than current onsemi revisions. Ensure the part number suffix corresponds to the correct plastic dual in-line package configuration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits requiring octal buffering with three-state control. It is suitable for applications needing improved board density and lower power consumption compared to older Schottky TTL alternatives while maintaining compatibility with standard logic levels.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the 74ACT series, which combines the speed of Advanced Schottky TTL with CMOS low power characteristics. The 74ACT244 variant specifically provides unidirectional buffering, distinguishing it from bidirectional transceivers like the 74ACT245.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include SN74ACT244 from Texas Instruments and MC74ACT244 from onsemi. Verify pinout compatibility and electrical parameters before substitution.