MC74VHCT244ADWR2G

Overview

The MC74VHCT244ADWR2G is an octal bus buffer and line driver from the VHCT logic series by onsemi. It features eight non-inverting inputs and outputs housed in a SOIC-20 package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 5.9 ns, high-level output current of -8 mA, and low-level output current of 8 mA. Static current is specified at 1.35 mA, with a maximum operating temperature of +125 C and minimum of -55 C.

Feature Summary

• Provides octal buffering for high-speed data transmission applications
• Compatible with TTL input levels for versatile system integration
• Offers three-state outputs to facilitate bus-oriented memory and command bus architectures

Applications

• Bus-oriented memory and command bus systems
• Clock distribution buffers
• High-speed data transmission lines

Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm RoHS compliance status via official datasheets. Ensure storage conditions account for moisture sensitivity classification. Validate package marking against official specifications to prevent counterfeit substitution during receipt inspection.

Selection Notes

Select this component when interfacing between 5 V logic families requiring TTL-compatible input thresholds. The VHCT series ensures compatibility with standard CMOS outputs while maintaining robust noise immunity. Consider the wide operating temperature range for industrial environments requiring extended thermal stability compared to standard commercial grade alternatives.

Part Context

This part belongs to the MC74VHCT244A family of octal buffers. It shares functional similarities with other VHCT devices but is distinct in its specific pinout and electrical characteristics tailored for 5 V operation. The suffix indicates tape and reel packaging options available for automated assembly processes.

Replacement Considerations

• MC74VHCT244ADW

FAQ

What is the input threshold voltage level?

The device is designed to be compatible with TTL input levels, ensuring reliable switching when driven by standard logic sources.

Does the device support bidirectional data flow?

No, the MC74VHCT244ADWR2G is a unidirectional buffer, meaning data flows only from input to output pins.