MC74HC245ADWG

Overview

The MC74HC245ADWG is an octal bus transceiver manufactured by onsemi, belonging to the HC logic family. It features a wide operating supply voltage range from 2 V to 6 V and supports bidirectional data transfer across eight channels. The device utilizes a 20-pin SOIC-Wide package and provides three-state outputs for effective bus management. It operates within a temperature range of -40 °C to +85 °C and includes standard CMOS input and output levels.

Feature Summary

• Octal bidirectional data transfer capability with independent direction control
• Three-state outputs allowing safe connection to shared system buses
• Wide power supply compatibility supporting 2 V to 6 V operation

Applications

• Bidirectional data bus transmission between microprocessors and memory modules
• Level shifting between different voltage domains in mixed-signal systems
• General-purpose I/O expansion in industrial control applications

Procurement Notes

Verify the specific suffix 'DWG' against the manufacturer's current datasheet to confirm the exact package dimensions and tape-and-reel or tube packaging options. Ensure the ordering part number matches the required moisture sensitivity level and RoHS compliance status for your assembly process.

Selection Notes

Select this component when an octal transceiver with a wide 2 V to 6 V supply range is required. The HC series offers higher speed than standard LS logic while maintaining CMOS compatibility. Verify that the 20-pin SOIC-Wide footprint fits your PCB layout constraints and that the 3-state output drive strength meets your bus loading requirements.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices. It serves as a fundamental building block for digital systems requiring parallel data movement. The device is functionally compatible with other industry-standard 74HC245 variants, facilitating design portability across different semiconductor manufacturers.

Replacement Considerations

Check for direct pin-compatible alternatives such as the MM74HC245A or SN74HC245N. Confirm that substitute parts maintain identical electrical characteristics, specifically the 2 V to 6 V operating range and propagation delay specifications.