MC74HC245ADWR2G

Overview

The MC74HC245ADWR2G is an octal bus transceiver from the HC logic family, manufactured by onsemi. It features a 20-pin SOIC-Wide surface-mount package with eight bidirectional data channels and non-inverting polarity. The device operates within a supply voltage range of 2 V to 6 V and supports CMOS input and output levels. It provides three-state outputs controlled by direction and output enable signals. The component is rated for operation between -55°C and +125°C, ensuring reliability in industrial environments.

Feature Summary

• Octal bidirectional data transfer capability with non-inverting logic function
• Three-state outputs allowing direct connection to system buses
• Wide operating voltage range supporting 2 V to 6 V power supplies
• Industrial temperature rating extending from -55°C to +125°C

Applications

• Memory and address bus drivers
• I/O port expansion circuits
• Digital signal routing in industrial control systems

Procurement Notes

Verify the specific suffix 'R2G' corresponds to the Mouser Reel packaging format when ordering. Confirm that the SOIC-Wide-20 package dimensions match the target PCB footprint requirements. Ensure the HC logic family compatibility aligns with existing system voltage levels and drive strength needs before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring high-speed octal data transmission with wide voltage flexibility. The HC series offers faster switching speeds compared to standard 74LS logic while maintaining low power consumption. Consider the industrial temperature range if the deployment environment experiences significant thermal fluctuations or requires extended operational stability beyond commercial limits.

Part Context

This part belongs to the MC74HC245A series of octal bus transceivers. It serves as a critical interface component for managing data flow between microprocessors and peripheral devices. The device simplifies circuit design by integrating eight channels into a single package, reducing board space and assembly complexity compared to discrete solutions.

Replacement Considerations

Check for pin-compatible alternatives such as the MC74HC245ADW (tube packaging) or equivalent parts from other manufacturers like NXP or Texas Instruments. Verify that any substitute maintains the same HC logic family characteristics and package outline to ensure seamless integration without redesigning the host circuit board.