74ACT244MSA

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74ACT244MSA is an octal buffer and line driver belonging to the ACT logic family. It features two independent four-bit buffers with separate output enable inputs, providing non-inverting data transfer from A inputs to Y outputs when enabled. The device operates within a supply voltage range of 4.5V to 5.5V and utilizes a 20-pin Small Outline (SO) surface-mount package. It delivers high drive capability with maximum low-level output current of 24mA and maximum high-level output current of -24mA. Propagation delay is specified at 9ns under typical conditions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus transceiver architecture with dual four-bit buffering sections
• Three-state outputs allowing direct connection to system buses
• High noise immunity and fast switching performance characteristic of ACT logic
• Compatible with standard TTL input levels for broad interface flexibility

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers in computer systems
• Clock distribution networks
• Bus-oriented receivers and transmitters
• High-density printed circuit board designs requiring signal buffering

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'MSA' against the manufacturer's current datasheet to confirm the exact package dimensions and tape-and-reel specifications. Ensure the component meets RoHS compliance requirements if applicable to your manufacturing process. Cross-reference the ordering code with authorized distributors to confirm availability and authenticity before finalizing procurement plans.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require high-speed octal buffering with three-state control capabilities. It is suitable for applications needing compatibility with both CMOS and TTL logic families while operating at standard 5V supply voltages. Consider the 20-pin SO package constraints regarding PCB space and thermal management during layout.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the widely adopted 74ACT series of advanced CMOS logic devices. The 74ACT244 variant specifically addresses the need for high-performance bus driving in digital systems. It serves as a critical interface component between microprocessors, memory modules, and peripheral devices, ensuring signal integrity across complex digital architectures.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for equivalents such as SN74ACT244 or onsemi 74ACT244 variants. Verify pinout compatibility and electrical parameters like propagation delay and output current ratings before substitution.