CD74HCT646M96

Overview

The CD74HCT646M96 is an octal bus transceiver and register manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes HCT logic series technology. The device features three-state outputs and supports bidirectional data transfer with direction control. It is housed in a 24-SOIC surface-mount package and functions as a registered transceiver. The component maintains a maximum power dissipation of 400 mW and ensures reliable operation across an extended temperature range from -55°C to +125°C.

Feature Summary

• Octal non-inverting bus transceiver with integrated register functionality
• Three-state outputs for effective bus line management
• Bidirectional data transfer capability with independent direction control

Applications

• High-speed data transmission systems requiring registered buffering
• Bus-oriented memory and interface circuits
• Control signal routing in industrial automation environments

Procurement Notes

Verify the specific suffix M96 against official Texas Instruments documentation to confirm reel packaging specifications and tape dimensions. Ensure compatibility with RoHS3 standards and check for any recent product change notices affecting pinout or material composition before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring octal width data handling with registered output stability. The HCT logic family ensures TTL-compatible input levels while providing CMOS output characteristics. Consider the 24-SOIC package constraints for PCB layout and verify that the 4.5 V to 5.5 V supply range aligns with the target system power architecture.

Part Context

This part belongs to the CD74HCT646 series, which represents high-speed CMOS logic devices designed for demanding digital applications. The series integrates bus transceiver and register functions into a single package, simplifying circuit design for complex data paths. It serves as a critical interface component between microprocessors and peripheral devices in modern electronic systems.

Replacement Considerations

CD74HCT652M is identified as a parameter-equivalent substitute available from Texas Instruments.