54FCT244ATLB

Overview

The 54FCT244ATLB is an octal buffer and line driver manufactured by Renesas Electronics Corporation. It features a non-inverting function with two elements, each handling four bits per element. The device provides three-state outputs and operates within a core voltage range of 4.5V to 5.5V. It is housed in a 20-LCC package measuring 8.89x8.89 mm. The component exhibits low input and output leakage currents, typically less than or equal to 1µA maximum, and maintains CMOS power levels while ensuring true TTL input and output compatibility.

Feature Summary

• Provides octal buffering with non-inverting logic functionality
• Supports three-state outputs for bus-oriented applications
• Ensures true TTL input and output compatibility
• Maintains low leakage currents and standard CMOS power consumption

Applications

• Bus-oriented memory and data transmission systems
• Clock drivers and timing circuits
• High-speed data acquisition interfaces

Procurement Notes

Verify the specific grade (Std., A, or C) required for your application, as performance characteristics may vary between grades. Confirm the package type matches the 20-LCC footprint dimensions of 8.89x8.89 mm. Ensure the operating voltage aligns with the 4.5V to 5.5V specification. Check moisture sensitivity level requirements during storage and handling procedures.

Selection Notes

Select this component when an octal buffer with three-state capability is needed for high-speed digital interfaces. It is suitable for designs requiring TTL compatibility alongside CMOS power efficiency. Consider the 20-LCC package constraints for PCB layout. Verify that the leakage current specifications meet the system's noise immunity requirements.

Part Context

This part belongs to the 54FCT series of fast CMOS buffers and line drivers from Renesas. The series includes various configurations such as transceivers and latches. The 54FCT244 variant specifically offers octal buffering with three-state outputs, distinguishing it from other series members with different pin counts or functions.

Replacement Considerations

Compatible substitutes include the IDT54FCT244AT and 74FCT244AT variants. These parts share similar electrical characteristics and pinouts. Verify functional equivalence regarding voltage ranges and leakage specifications before substitution.