74FCT244ASC

Buffers, Drivers, Receivers, Transceivers Overview

The National Semiconductor 74FCT244ASC is an octal buffer and line driver featuring TRI-STATE outputs. It operates within a supply voltage range of 4.75 V to 5.25 V. The device provides a high-level output current of -15 mA and a 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 a temperature range from -40 °C to +85 °C. The component is housed in a 20-SOIC package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal buffer and line driver configuration with TRI-STATE outputs
• Non-inverting logic function for signal transmission
• Designed for memory, address, and clock driver applications

Buffers, Drivers, Receivers, Transceivers Applications

• Memory bus drivers
• Address bus drivers
• Clock distribution circuits
• Bus-oriented data transmission systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the RoHS compliance status carefully, as specific listings indicate non-compliance. Confirm the manufacturer origin, noting that Harris and Renesas also produce compatible FCT series parts. Ensure the 20-SOIC package dimensions match your PCB footprint requirements before ordering.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal, non-inverting buffer with TRI-STATE capability is required for 5V CMOS logic interfaces. Consider the 64 mA low-level sink current for driving moderate capacitive loads. Verify thermal performance within the specified -40 °C to +85 °C industrial range for your specific enclosure conditions.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the FCT logic family, designed for high-speed CMOS applications. It serves as a standard interface solution for connecting microprocessors to peripheral devices or memory modules. The octal configuration allows for efficient handling of wide data buses in digital systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include the CD74FCT244ATM (Harris) and 74FCT244ATSOG8 (Renesas). These parts share the same logical function and pinout but may differ in packaging suffixes or minor electrical characteristics. Verify datasheet compatibility for specific design integration.