CD74FCT244E

Overview

The CD74FCT244E is an octal buffer and line driver manufactured by Texas Instruments, belonging to the FCT logic family. It features eight non-inverting inputs with three-state outputs, housed in a 20-pin SOIC package. The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical characteristics include a maximum low-level output current of 64 mA and a high-level output current of -32 mA at 5 V. Propagation delay is specified at 4.1 ns under a 50 pF load condition. The component supports surface-mount installation and functions reliably across an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Provides octal buffering and line driving capabilities with non-inverting signal paths.
• Integrates three-state output control for effective bus management and isolation.
• Utilizes BiCMOS FCT technology to achieve high-speed performance with significant drive strength.

Applications

• High-speed data bus buffering in computer systems
• Clock distribution networks requiring precise timing
• Memory module interface drivers

Procurement Notes

Verify the specific suffix against the manufacturer's official documentation to confirm pinout compatibility and electrical specifications. Ensure the procurement channel provides genuine components with traceable origin. Cross-reference the package type and temperature rating with system requirements before finalizing orders to avoid integration issues.

Selection Notes

Select this component when designing circuits that require robust drive capability for long traces or multiple loads. The FCT series offers a balance between speed and power consumption suitable for 5 V logic systems. Consider the three-state feature if the design necessitates sharing a common data bus among multiple sources.

Part Context

This part belongs to the Texas Instruments CD74xx series of high-speed CMOS logic devices. The FCT variant specifically targets applications demanding faster switching speeds compared to standard HC or HCT families while maintaining compatibility with 5 V TTL and CMOS logic levels. It serves as a critical interface element in digital electronics for signal integrity.

Replacement Considerations

Direct substitutes include the CY74FCT244CTSOC and CD74ACT244E, provided pin configurations and electrical limits align with the original design constraints. Verify package dimensions and thermal characteristics when swapping between different manufacturers or logic families.