74ACT244MSAX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACT244MSAX is an octal buffer and line driver featuring three-state outputs, designed for memory address driving, clock distribution, and bus-oriented transmitter/receiver applications. It operates within a supply voltage range of 4.5 V to 5.5 V. The device provides high drive capability with outputs sourcing and sinking 24 mA. It incorporates TTL-compatible inputs and exhibits a propagation delay of 10 ns at 5 V. The component is housed in a 20-pin TSSOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features three-state outputs suitable for driving bus lines or buffering memory address registers.
• Provides improved printed circuit board density through compact packaging.
• Incorporates TTL-compatible inputs for direct interfacing with TTL logic systems.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers
• Clock drivers
• Bus-oriented transmitters and receivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'MSA' against official datasheets to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with moisture sensitivity levels and reflow soldering profiles required by your assembly process. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-speed signal buffering with strong drive capability is required. The ACT series offers faster switching speeds compared to standard HC or HCT logic families while maintaining CMOS power efficiency. Consider the 24 mA output current for driving heavy capacitive loads or multiple inputs on downstream buses.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ACT logic family, which bridges the performance gap between AC (Advanced CMOS) and ACT (Advanced TTL) technologies. It shares functional pinouts with other octal buffers like the 74HC244 but offers superior speed and drive strength. The MSAX suffix typically denotes a specific surface-mount package variant optimized for automated assembly.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include MC74ACT244DTR2G and 74ACT244MTCX. Verify that replacement parts match the 20-TSSOP footprint and electrical characteristics, specifically the 4.5 V to 5.5 V operating range and 24 mA drive current capabilities.