MC74VHC245DWR2

Overview

The MC74VHC245DWR2 is an octal bus transceiver manufactured by onsemi using advanced high-speed CMOS technology. It provides bidirectional asynchronous communication between two data buses with eight independent data lines. The device features a low-impedance output structure and includes direction control to determine data flow between ports A and B. An active-low output enable pin allows the I/O ports to enter a high-impedance state for electrical isolation. The component operates within a specified DC power supply voltage range, ensuring compatibility with various system logic levels while maintaining balanced propagation delays.

Feature Summary

• Octal bidirectional data transfer capability for asynchronous bus communication
• Direction control mechanism determines signal flow between port A and port B
• Active-low output enable function for high-impedance bus isolation
• Advanced high-speed CMOS construction for rapid signal processing

Applications

• Data bus buffering in computing systems
• Bidirectional communication interfaces in consumer electronics
• Industrial control system data routing
• Automotive electronic module interconnects

Procurement Notes

Verify the specific suffix DWR2 against official datasheets to confirm package type and tape-and-reel specifications. Ensure the order matches the exact part number variant as suffixes define physical packaging and handling requirements. Cross-reference manufacturer documentation for any recent lifecycle changes or alternative package options before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring high-speed octal data transfer with precise direction control. The CMOS technology offers low input current and high noise immunity suitable for complex digital environments. Consider the operating voltage range and propagation delay characteristics relative to system timing requirements. Verify that the package dimensions align with the target PCB layout constraints.

Part Context

This device belongs to the VHC series of bus transceivers from onsemi, designed for high-performance applications. It serves as a critical interface component for managing data flow between different logic domains. The VHC series utilizes silicon gate CMOS technology to achieve fast switching speeds while maintaining low power consumption standards typical of modern integrated circuits.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.