CD74LPT244CQM

Overview

The CD74LPT244CQM is a CMOS bus driver from the LPT series manufactured by Harris Corporation. It features two independent functions, each handling four bits of data with true output polarity. The device utilizes a 20-pin SSOP package and operates within a temperature range of -40°C to 85°C. Key electrical characteristics include a maximum low-level output current of 0.024 A and a load capacitance of 50 pF. Control is managed via an active-low enable signal, and the outputs provide three-state capability for effective bus management in digital systems.

Feature Summary

• Provides two independent 4-bit bidirectional data paths for system interconnects
• Features active-low enable control for precise timing synchronization
• Delivers three-state outputs to prevent bus contention during inactive states

Applications

• Parallel data buffering in microprocessor-based systems
• I/O port expansion for embedded controllers
• Memory interface isolation in computer architectures

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as indicated in official documentation. Ensure the specific suffix matches required packaging and temperature grades. Request original datasheets to validate pinout configurations and electrical limits before integration into design specifications.

Selection Notes

Select this component when designing systems requiring isolated parallel data transfer with minimal propagation delay. Consider the LPT series characteristics for compatibility with existing logic families. Evaluate the SSOP package constraints against available PCB real estate. Verify that the operating voltage and temperature ranges align with the target application environment requirements.

Part Context

This part belongs to the Harris Corporation LPT logic family, designed for high-speed digital applications. It serves as a fundamental building block for data routing and signal conditioning. The device complements other bus transceivers and drivers within the same product line, offering standardized interfaces for reliable communication between integrated circuits in complex electronic assemblies.

Replacement Considerations

Consult official replacement guides for compatible equivalents. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Ensure functional equivalence regarding enable logic and output states. Review updated datasheets for any changes in package dimensions or thermal characteristics.