CY74FCT244DTSOCT

Overview

The CY74FCT244DTSOCT is an octal buffer and line driver manufactured by Texas Instruments, belonging to the FCT logic series. It features eight non-inverting inputs driving three-state outputs in a 20-pin Thin Small Outline Package (SOIC). The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical specifications include a high-level output current of -32 mA and a low-level output current of 64 mA. Propagation delay is specified at 6.5 ns at 5 V. The component supports surface mount installation and functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides eight independent non-inverting buffer channels for signal conditioning and line driving applications.
• Integrates three-state output capability to facilitate bus-oriented architectures and system isolation.
• Utilizes CMOS technology to achieve low static power consumption while maintaining high-speed performance.

Applications

• Clock buffering and distribution in digital systems
• Memory address and data bus drivers
• Signal isolation between different logic domains

Procurement Notes

Verify the specific suffix 'DT' corresponds to the Thin SOIC package variant when sourcing. Confirm that the 'SOC' or 'SOCT' designation aligns with the required tape-and-reel packaging format for automated assembly. Ensure the order matches the Texas Instruments manufacturer identification to avoid counterfeit components. Cross-reference the RoHS compliance status if environmental regulations apply to the final product assembly.

Selection Notes

Select this component when an octal buffer with three-state outputs is required for 5V CMOS logic interfaces. The FCT series offers faster switching speeds compared to standard LS logic families. Consider the 20-pin SOIC footprint for PCB layout constraints. Evaluate the 64 mA low-level sink capability against the load requirements of the destination circuits to ensure adequate drive strength without exceeding thermal limits.

Part Context

This part belongs to the CY74FCT244T family of octal buffers. It serves as a high-performance alternative to legacy 74F244 devices, offering improved speed and lower power dissipation. The FCT technology bridges the gap between TTL input compatibility and CMOS output efficiency. It is widely used in computing and telecommunications equipment requiring reliable data transmission over parallel buses.

Replacement Considerations

Direct pin-compatible substitutes may include other octal buffers from the same FCT family, such as the CY74FCT244ATSOG. Verify that any replacement maintains the same 20-pin SOIC package and three-state output functionality. Check that the substitute device meets the same voltage and temperature specifications.