MC74ACT244MG

Overview

The MC74ACT244MG is an octal buffer and line driver manufactured by onsemi, belonging to the 74ACT logic series. It features eight non-inverting inputs and three-state outputs housed in a 20-pin SOIC-J package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical specifications include a propagation delay of 11 ns at 5 V, with output currents capable of sourcing -24 mA and sinking 24 mA. Static current is specified at 4 uA, while operating power consumption reaches 40 uA. The component supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Provides octal buffering and line driving capabilities for bus-oriented applications
• Features three-state outputs to facilitate direct connection to system buses
• Incorporates TTL-compatible inputs for compatibility with standard logic families

Applications

• Memory address drivers
• Clock signal distribution
• Bus oriented transmitter and receiver circuits

Procurement Notes

Verify the specific suffix 'MG' against the official datasheet to confirm the package type and tape/reel configuration. Ensure the ordering part number matches the required moisture sensitivity level and RoHS compliance status. Cross-reference the manufacturer's latest documentation to confirm availability and any potential obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when an octal buffer with three-state control is required for 5V CMOS systems. The ACT series offers improved speed compared to older AC variants while maintaining TTL input compatibility. Consider the SOIC-J package dimensions for PCB layout constraints. Verify that the 24 mA drive capability meets the load requirements of the connected bus lines or registers.

Part Context

This component is part of the broader 74ACT family of high-speed CMOS logic devices produced by onsemi. It serves as a digital buffer designed to interface between different logic levels or drive heavy capacitive loads. The octal configuration allows for parallel data handling, making it suitable for wide data buses in microprocessor-based systems and memory architectures.

Replacement Considerations

Direct substitutes include MC74ACT244DTR2G and MC74ACT244SCX. Verify pinout compatibility and package dimensions before substitution.